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Exchange Server 2007 Mailbox Server Storage Cost Calculator

The_Exchange_Team's avatar
Nov 04, 2008

EDIT: This post has been updated on 12/2/2008 to match the newest version of Exchange Server 2007 Mailbox Server Storage Cost Calculator.

Overview

Earlier versions of Exchange did not scale well enough, at a low enough cost per mailbox (because of expensive hardware and recovery options) to allow IT administrators the ability to match the ever increasing mailbox sizes of personal e-mail accounts. Exchange 2007 offers dramatic performance and scalability improvements when compared to prior versions of Exchange. Long recovery times have been a significant impediment to the adoption of larger mailbox sizes. The introduction of cluster continuous replication (CCR) offers the ability to rapidly recover from outages at a low cost. These performance and rapid recovery improvements enable IT departments to deploy large mailboxes easily and at a low cost. Increased mailbox sizes improve end-user productivity and satisfaction, reduce IT administrative costs, improve security, and help meet business and regulatory compliance requirements. For more information on the end user and IT benefits that are available by deploying large mailboxes in Exchange 2007, please see the whitepaper, Planning for Large Mailboxes with Exchange 2007.

In order to move forward with various designs like large mailboxes, IT departments need to understand one of the chief costs associated with Exchange mailbox servers, namely storage. To that end, the Exchange 2007 Mailbox Storage Cost Calculator is designed to help you determine a portion of the mailbox server cost, namely the disk cost (purchase price and lifecycle power and cooling costs). The calculator helps in two ways:

1. The calculator takes a series compares a series of storage design configurations and determines their respective costs. The underlying goal here is two-fold:

a. To show that you can achieve the same capacity and I/O requirements utilizing Small Form Factor SAS disks for relatively the same cost as Large Form Factor FC disks.

b. To show that there are other disk solutions (e.g., SATA) that can be viable and reduce the disk footprint cost.

2. In the situation where you are unsure whether you want to deploy Single Copy Clusters (SCC) or Cluster Continuous Replication (CCR), the calculator can compare SCC+SAN disk configurations against CCR+DAS disk configurations from a cost perspective.

Hopefully these measurements will show the value from a cost perspective in considering other disk designs, coupled with large mailboxes and continuous replication.

In order to utilize the Exchange 2007 Mailbox Storage Cost Calculator, you need to understand the solution you are planning to deploy. In particular, you need to know:

  • Number of mailbox servers
  • Number of mailboxes and their mailbox size
  • High availability model that will be used
  • Number of database copies that will exist
  • Power and cooling costs
  • Storage design
  • Disk costs
  • Disk active power consumption

In addition, you should also keep in mind that by default this calculator model only focuses on the associated disk costs. For a complete end-to-end cost/mailbox these items will also need to be considered, just to name a few:

  • Server costs
  • Array controller costs
  • Disk enclosure costs
  • Fibre/network fabric costs
  • Datacenter/floor space costs
  • Software costs
  • Other operational management costs

How to Use the Calculator

Input Worksheet

When you launch the Exchange 2007 Mailbox Storage Cost Calculator, you are presented with the Input worksheet. This worksheet is broken down into 7 key areas.

Important: The example configuration provided within this calculator is just that, an example, and as such, each input option needs to be evaluated as to how it will affect your design.

Step 1 - Gather Storage Requirements

The Exchange 2007 Mailbox Storage Cost Calculator can work hand-in-hand with the Exchange 2007 Mailbox Storage Requirements Calculator. You should first scope out your mailbox server storage design using the Requirements Calculator as its output can be inputted into this calculator.

Step 2 - Solution Information

In this section you are asked to fill in the necessary information about your mailbox server solution:

Solution Information Settings

Value

Number of Mailbox Servers

6

Number of Mailboxes / Server

4000

Large Mailbox Size Deployment (1GB+)

Yes

High Availability Model

CCR

Number of Database Copies / Mailbox Server via Continuous Replication

2

VSS Backup Solution

Snapshot

Number of VSS Clone Copies

1

Third-Party Data Replication Solution

No

VSS Copy Support in Geographically Dispersed SCC

No

  • For Number of Mailbox Servers, simply enter in the number of mailbox servers or number of clustered mailbox servers you will deploy.
  • For Number of Mailbox Servers / Server, simply enter in the number of mailboxes that will be deployed on each mailbox server or clustered mailbox server. This value can be obtained from the Requirements Calculator Storage Requirements worksheet's Solution Configuration table (Single Server column).
  • For Large Mailbox Size Deployment (1GB+), select Yes if you are planning to deploy large mailboxes and No if you are planning to deploy small mailboxes. Large mailbox deployments require a fast recovery mechanism in order to meet most RTO requirements; therefore, if you are deploying large mailboxes without continuous replication, you should deploy a VSS clone backup methodology.
  • For High Availability Model, select the type of model that you plan to deploy: SCC, CCR, LCR, or none.
  • For Number of Database Copies / Mailbox Server via Continuous Replication, enter in the total number of mailbox copies you will have for each mailbox server instance. This value can be obtained from the Requirements Calculator Storage Requirements worksheet's Number of Servers & Data Copies table.
  • For VSS Backup Solution, you can choose clone, snapshot, or none. If you are deploying a SCC environment with large mailboxes, you should consider deploying a VSS solution that supports fast recovery (3 minutes + log replay), like a clone-based snapshot mechanism.
  • For Number of VSS Clone Copies, you should select to have at least 2 copies so that you can rotate through them and not put your environment at risk by overwriting your only valid backup.
  • For Third-Party Data Replication Solution, select yes if you are planning to utilize a data replication mechanism for your Single Copy Cluster or standalone mailbox server environment. By selecting yes, the storage calculator will double the number of disks required for the SCC or standalone solution (database, log, restore LUN) so that the replicated hardware can take ownership and become the primary copy without losing any functionality.
  • For VSS Copy Support in Geographically Dispersed SCC, select yes if you plan on deploying a geographically dispersed SCC environment and want to ensure that backups can continue in the event of a site failover.
Step 3 - Storage Solution Costs

In this section you are asked to determine how you would like the cost analysis performed. You can utilize the default model, which bases the cost analysis on individual component pricing, or you can select to perform the cost analysis based on a complete storage solution cost.

For the first table, you can select as to whether you want to perform the cost analysis per individual component cost by selecting Yes, or you can choose to enter into the second table the entire solution's cost by selecting No.

Storage Solution Cost Settings

Value

Perform Cost Analysis Based on Individual Component Prices

Yes

If you selected No in the prior table, then you may enter into this table the storage solution cost per storage configuration. In addition, you can also enter into this section any additional costs (e.g. software licensing costs) you would like included in the cost analysis.

Storage Solution Cost Settings

Storage Solution Cost

Additional Costs

Configuration 1

$0.00

$0.00

Configuration 2

$0.00

$0.00

Configuration 3

$0.00

$0.00

Step 4 - Operational Metrics

In this section you are asked to enter in the power and cooling operational costs and how many years you expect this solution to remain in production. For determining your power and cooling costs, please consult your data center management staff.

Category

Value

Power Cost ($/kwh)

$0.12

Cooling Cost ($/kwh)

$0.12

Production Lifecycle (years)

3

Step 5 - Disk Configuration

In this section you are asked to enter in the various disk design configurations you wish to analyze from a cost perspective. For comparative analysis, you should enter at least 2 different disk configurations. This data can be obtained from the Requirements Calculator Storage Design worksheet's Storage Design Input Factors - Disk Selection section.

In the second table, you are asked to enter in the various disk design configurations you wish to analyze from a cost perspective that will be used as part of the VSS backup infrastructure. Note that if you are performing snapshot copies and storing all the data on the same disks, you can select "-" for the Log Copy Disk Type.

Database Copy Disk Type

Log Copy Disk Type

VSS Backup Solution for Configuration 1

146GB 10K 2.5" SAS

--

VSS Backup Solution for Configuration 2

300GB 10K 3.5" FC

--

VSS Backup Solution for Configuration 3

1024GB 7.2K 3.5" SATA

--

Step 6 - Number of Disks

In this section you are asked to enter in the number of disks required for each disk design configuration you wish to analyze. This data can be obtained from the Requirements Calculator Storage Design worksheet's RAID Configurations / Server table (Note: when populating this table, only focus on the primary database copy and ignore the disk requirements for the continuous replication replica of disks).

Number of Database Disks

Number of Log Disks

Number of Restore LUN Disks

Configuration 1

125

24

10

Configuration 2

60

12

10

Configuration 3

70

8

10

In the second table, you are asked to enter in the number of disks required for each VSS backup disk design configuration you wish to analyze.

Number of Database Copy Disks

Number of Log Copy Disks

VSS Backup Solution for Configuration 1

162

0

VSS Backup Solution for Configuration 2

84

0

VSS Backup Solution for Configuration 3

24

0

Step 7 - Disk Cost

In this section you are asked to enter in the disk cost for each type of disk you entered into Step 4. You can obtain this data from your storage vendor or from whatever purchase vehicle you utilize.

Database Disk Type Cost

Log Disk Type Cost

Restore LUN Disk Type Cost

Configuration 1

$298.00

$298.00

$130.00

Configuration 2

$595.00

$595.00

$130.00

Configuration 3

$130.00

$130.00

$130.00

In the second table, you are asked to enter in the disk cost for each type of disk you entered into the VSS backup disk type table. You can obtain this data from your storage vendor or from whatever purchase vehicle you utilize.

Database Copy Disk Type Cost

Log Copy Disk Type Cost

VSS Backup Solution for Configuration 1

$298.00

$298.00

VSS Backup Solution for Configuration 2

$595.00

$595.00

VSS Backup Solution for Configuration 3

$275.00

$130.00

Step 8 - Disk Power Consumption

In this section you are asked to enter in the active power consumption for each type of disk you entered into Step 4. You can obtain this data from your storage vendor or from the disk manufacturer's product literature.

Database Disk Active Power Consumption (w)

Log Disk Active Power Consumption (w)

Restore LUN Disk Active Power Consumption (w)

Configuration 1

8.0

8.0

10.6

Configuration 2

18.0

18.0

10.6

Configuration 3

10.6

10.6

10.6

In the second table, you are asked to enter in the active power consumption for each type of disk you entered into the VSS backup disk type table. You can obtain this data from your storage vendor or from the disk manufacturer's product literature.

Database Copy Disk Active Power Consumption (w)

Log Copy Disk Active Power Consumption (w)

VSS Backup Solution for Configuration 1

8.0

8.0

VSS Backup Solution for Configuration 2

18.0

18.0

VSS Backup Solution for Configuration 3

11.6

10.6

Step 9 - Storage Configuration

In this section, you can choose to enter in details regarding your storage controllers and storage enclosures. Specifically you can define the total number of enclosures and controllers used in each configuration, the cost per device, and the active power consumption per device.

For the first table, you can select as to whether you want to include the storage enclosure and/or storage controller configuration into the cost analysis.

Storage Configuration Settings

Value

Include Enclosure Configuration in Cost Analysis

No

Include Controller Configuration in Cost Analysis

No

For the second table, you can enter in the details of the storage enclosure configuration per storage configuration. Please note that you should enter in the total number of enclosures used in the environment for each configuration.

Enclosure Configuration

Total Number of Enclosures / Environment

Cost / Enclosure

Active Power Consumption / Enclosure

Configuration 1

0

$0.00

0.0

Configuration 2

0

$0.00

0.0

Configuration 3

0

$0.00

0.0

For the third table, you can enter in the details of the storage controller configuration per storage configuration. Please note that you should enter in the total number of controllers used in the environment for each configuration.

Controller Configuration

Total Number of Controllers / Environment

Cost / Controller

Active Power Consumption / Controller

Configuration 1

0

$0.00

0.0

Configuration 2

0

$0.00

0.0

Configuration 3

0

$0.00

0.0

 

Storage Cost Results Worksheet

After entering in the required information on the Input Worksheet, you can access the Storage Costs Results Worksheet.

Storage Cost Calculations Section

For each disk configuration entered into the Input Worksheet, the calculator will derive the following information:

  • Total Number of disks required. This number will reflect the required number of disks to support the Exchange storage (if continuous replication is selected, then at least 2 copies), the backup infrastructure, and the number of disks required for the number of standby continuous replication targets that were entered into the Input Worksheet.
  • Total disk or solution cost.
  • Total power consumed for the required disks/solution.
  • Yearly power cost for the required disks/solution.
  • Yearly cooling cost for the required disks/solution.

This information is then utilized in the results section.

Storage Cost Results Section

Based on the information provided in the Input Worksheet, the calculator will generate three tables.

The first table displays the capital expenses for each configuration. Specifically, the table outlines the total number of disks required for each disk configuration, the disk (or solution) cost, and the disk (or solution) cost per mailbox.

Capital Expenses

Total Number of Disks

Disk Cost

Disk Cost / Mailbox

Configuration 1 with VSS Backup Solution

2880

$838,080.00

$34.92

Configuration 2 with VSS Backup Solution

1488

$829,560.00

$34.57

Configuration 3 with VSS Backup Solution

1200

$176,880.00

$7.37

The second table displays the operational expenses for each configuration. Specifically, the table outlines the yearly power and cooling costs for the disks (or solution), the production lifecycle power and cooling cost, and the production lifecycle power and cooling cost per mailbox.

Operational Expenses

Yearly Total Power-Cooling Cost

Production Lifecycle Power-Cooling Cost

Production Lifecycle Power-Cooling Cost / Mailbox

Configuration 1 with VSS Backup Solution

$49,095.24

$147,285.73

$6.14

Configuration 2 with VSS Backup Solution

$54,443.75

$163,331.25

$6.81

Configuration 3 with VSS Backup Solution

$27,045.27

$81,135.82

$3.38

The third table displays the total expenses for each configuration. Specifically, the table outlines the total disk (or solution) cost and production lifecycle power and cooling cost and those costs per mailbox. The calculator will also visually show how the costs compare with one another: green indicates the most affordable solution, yellow indicates the second affordable solution, and red indicates the most expensive solution.

Total Expenses

Total Disk & Power-Cooling Cost

Total Disk & Power-Cooling Cost / Mailbox

Configuration 1 with VSS Backup Solution

$985,365.73

$41.06

Configuration 2 with VSS Backup Solution

$992,891.25

$41.37

Configuration 3 with VSS Backup Solution

$258,015.82

$10.75

Storage Cost Charts Worksheet

The Storage Cost Charts worksheet simply takes the data that is provided in the Storage Cost Results section and provides it in a graphical form which can then be used in presentations, or delivered to business decision makers, etc.

SCC vs. CCR Worksheet

This worksheet is designed to help you when you want to understand the differences between deploying in an SCC configuration or a CCR configuration; differences like:

  • CCR provides two copies of the data. SCC provides only a single copy of the data (unless deployed with a third-party data replication solution).
  • CCR provides a built-in fast recovery mechanism. SCC does not provide a built-in fast recovery mechanism.
  • CCR due to its fast recovery mechanism can handle large mailboxes without an impact to RTO. SCC requires a fast recovery mechanism like VSS clones to satisfy meeting the RTO requirements.
SCC vs. CCR Input Factors - Solution Configuration

Step 1 - Many of the data points used to perform the SCC and CCR comparison are taken from the Input worksheet:

  • Number of mailboxes
  • Number of mailbox servers
  • Whether large mailboxes are deployed
  • Power and cooling costs
  • Production lifecycle

However the Input worksheet does not include all the data points necessary to make this comparison. Those differences can be entered into this section's table:

  • For Number of SCR Copies, enter the number of SCR copies you would like to have deployed in this environment. Note that for SCC environments, if you enable third-party data replication, the number of SCR copies value will be ignored.

Category

Value

Number of SCR Copies

0

SCC vs. CCR Input Factors - Storage Solution Costs

Step 2 - In this section you are asked to determine how you would like the cost analysis performed. You can utilize the default model, which bases the cost analysis on individual component pricing, or you can select to perform the cost analysis based on a complete storage solution cost.

For the first table, you can select as to whether you want to perform the cost analysis per individual component cost by selecting Yes, or you can choose to enter into the second table the entire solution's cost by selecting No.

Storage Solution Cost Settings

Value

Perform Cost Analysis Based on Individual Component Prices

Yes

If you selected No in the prior table, then you may enter into this table the storage solution cost for the SCC storage configuration and the CCR storage configuration. In addition, you can also enter into this section any additional costs (e.g. software licensing costs) you would like included in the cost analysis.

Storage Solution Cost Settings

Storage Solution Cost

Additional Costs

SCC Storage Configuration (SAN)

$0.00

$0.00

CCR Storage Configuration (DAS)

$0.00

$0.00

SCC vs. CCR Input Factors - SCC Configuration

Step 3 - For this table, you can enter in various pieces of information regarding the Single Copy Cluster environment:

  • For VSS Backup Solution, you can choose clone, snapshot, or none. If you are deploying a SCC environment with large mailboxes, you should consider deploying a VSS solution that supports fast recovery (3 minutes + log replay), like a clone-based snapshot mechanism.
  • For Number of VSS Clone Copies, you should select to have at least 2 copies so that you can rotate through them and not put your environment at risk by overwriting your only valid backup.
  • If you are planning on deploying your Single Copy Cluster environment in a geographically dispersed model or if you are planning to enhance your solution by replicating the mailbox store data to another storage enclosure, you can select "Yes" to the Geographically Dispersed SCC (3rd Party Data Replication) input. By selecting yes, the storage calculator will double the number of disks required for the SCC solution (database, log, restore LUN) so that the replicated hardware can take ownership and become the primary copy without losing any functionality.
  • For VSS Copy Support in Geographically Dispersed SCC, select yes if you plan on deploying a geographically dispersed SCC environment and want to ensure that backups can continue in the event of a site/storage failover.

SCC Configuration Settings

Value

VSS Backup Solution

Clone

Number of VSS Clone Copies

2

Geographically Dispersed SCC (3rd Party Data Replication)

No

VSS Copy Support in Geographically Dispersed SCC

No

Step 4 - For this table, you can enter in the desired storage configuration you wish to use in your SCC environment. Select the appropriate disk type and enter in the number of required disk spindles per mailbox server, as well as, the disk cost and the disk power consumption.

SCC Disk Configuration (SAN)

Database

Log

Restore LUN

Disk Type

300GB 10K 3.5" FC

300GB 10K 3.5" FC

500GB 7.2K 3.5" SATA

Number of Disks / Mailbox Server

60

12

10

Disk Cost ($)

$595.00

$595.00

$130.00

Disk Active Power Consumption ($)

18.0

18.0

10.6

Step 5 - For this table, you can enter in the design VSS backup storage configuration you wish to use with your SCC environment. Select the appropriate disk type and enter in the number of required disk spindles per mailbox server, as well as, the disk cost and the disk power consumption. Note that if you are performing snapshot copies and storing all the data on the same disks, you can select "-" for the Log Copy Disk Type.

SCC VSS Backup Configuration (SAN)

Database Copy

Log Copy

Disk Type

300GB 10K 3.5" FC

300GB 10K 3.5" FC

Number of Disks / Mailbox Server

60

12

Disk Cost ($)

$595.00

$595.00

Disk Active Power Consumption ($)

18.0

18.0

Step 6 - For this section, you can choose to enter in details regarding your storage controllers and storage enclosures. Specifically you can define the total number of enclosures and controllers used in each configuration, the cost per device, and the active power consumption per device. For the first table, you can select as to whether you want to include the storage enclosure and/or storage controller configuration into the cost analysis.

Storage Configuration Settings

Value

Include Enclosure Configuration in Cost Analysis

No

Include Controller Configuration in Cost Analysis

No

For the second table, you can enter in the details of the storage enclosure and storage controller configuration. Please note that you should enter in the total number of devices used in the environment for each configuration.

SCC Storage Configuration

Total Number of Devices / Environment

Cost / Device

Active Power Consumption / Device

Storage Enclosure

0

$0.00

0.0

Storage Controller

0

$0.00

0.0

SCC vs. CCR Input Factors - CCR Configuration

Step 7 - For this table, you can enter in various pieces of information regarding the Cluster Continuous Replication environment:

  • For VSS Backup Solution, you can choose snapshot, or none. If you are deploying a SCC environment with large mailboxes, you should consider deploying a VSS solution that supports fast recovery (3 minutes + log replay), like a clone-based snapshot mechanism.

CCR Configuration Settings

Value

VSS Backup Solution

Snapshot

Step 8 - For this table, you can enter in the desired storage configuration you wish to use in your CCR environment. Select the appropriate disk type and enter in the number of required disk spindles per node, as well as, the disk cost and the disk power consumption.

CCR Disk Configuration (DAS)

Database

Log

Restore LUN

Disk Type

500GB 7.2K 3.5" SATA

500GB 7.2K 3.5" SATA

500GB 7.2K 3.5" SATA

Number of Disks / Node

70

8

10

Disk Cost ($)

$130.00

$130.00

$130.00

Disk Active Power Consumption ($)

10.6

10.6

10.6

Step 9 - For this table, you can enter in the design VSS backup storage configuration you wish to use with your CCR environment. Select the appropriate disk type and enter in the number of required disk spindles per mailbox server, as well as, the disk cost and the disk power consumption. Note that if you are performing snapshot copies and storing all the data on the same disks, you can select "-" for the Log Copy Disk Type.

CCR VSS Backup Configuration (DAS)

Database Copy

Log Copy

Disk Type

1024GB 7.2K 3.5" SATA

--

Number of Disks / Mailbox Server

24

12

Disk Cost ($)

$275.00

$130.00

Disk Active Power Consumption ($)

11.6

10.6

Step 10 - For this section, you can choose to enter in details regarding your storage controllers and storage enclosures. Specifically you can define the total number of enclosures and controllers used in each configuration, the cost per device, and the active power consumption per device. For the first table, you can select as to whether you want to include the storage enclosure and/or storage controller configuration into the cost analysis.

Storage Configuration Settings

Value

Include Enclosure Configuration in Cost Analysis

No

Include Controller Configuration in Cost Analysis

No

For the second table, you can enter in the details of the storage enclosure and storage controller configuration. Please note that you should enter in the total number of devices used in the environment for each configuration.

CCR Storage Configuration

Total Number of Devices / Environment

Cost / Device

Active Power Consumption / Device

Storage Enclosure

0

$0.00

0.0

Storage Controller

0

$0.00

0.0

SCC vs. CCR Calculations Section

For each disk configuration entered into the Input Worksheet, the calculator will derive the following information:

  • Total Number of disks required.
  • Total disk cost.
  • Total power consumed for the required disks.
  • Yearly power cost for the required disks.
  • Yearly cooling cost for the required disks.

This information is then utilized in the results section.

SCC vs. CCR Results Section

The first table outlines the total number of disks required for the SCC and CCR configurations, as well as, the number of data copies that exist for each solution. If you enabled VSS clones for your SCC solution, this will be reflected in the total copy count. If you also select to deploy a third-party data replication solution for SCC, this will increase the copy count by one.

Total Number of Disks

Total Number of Data Copies / Server

Types of Data Copies / Server

SCC Configuration (SAN) with VSS Backup Solution

1,356

3

1 + 2 VSS Clones

CCR Configuration (DAS) with VSS Backup Solution

1,200

2

2 + Snapshot Copies

The second table displays the capital expenses for the SCC and CCR configurations. Specifically, the table outlines the total number of disks required for each disk configuration, the disk (or solution) cost, and the disk (or solution) cost per mailbox. The calculator will also visually show how the costs compare with one another: green indicates the most affordable solution, yellow indicates the second affordable solution, and red indicates the most expensive solution

Capital Expenses

Total Number of Disks

Disk Cost

Disk Cost / Mailbox

SCC Configuration (SAN) with VSS Backup Solution

1356

$778,920.00

$32.46

CCR Configuration (DAS) with VSS Backup Solution

1200

$176,880.00

$7.37

The third table displays the operational expenses for the SCC and CCR configurations. Specifically, the table outlines the yearly power and cooling costs for the disks (or solution), the production lifecycle power and cooling cost, and the production lifecycle power and cooling cost per mailbox.

Operational Expenses

Yearly Total Power-Cooling Cost

Production Lifecycle Power-Cooling Cost

Production Lifecycle Power-Cooling Cost / Mailbox

SCC Configuration (SAN) with VSS Backup Solution

$50,381.91

$151,145.74

$6.30

CCR Configuration (DAS) with VSS Backup Solution

$27,045.27

$81,135.82

$3.38

The fourth table displays the total expenses for the SCC and CCR configurations. Specifically, the table outlines the total disk (or solution) cost and production lifecycle power and cooling cost and those costs per mailbox.

Total Expenses

Total Disk & Power-Cooling Cost

Total Disk & Power-Cooling Cost / Mailbox

SCC Configuration (SAN) with VSS Backup Solution

$930,065.74

$38.75

CCR Configuration (DAS) with VSS Backup Solution

$258,015.82

$10.75

 

Hopefully you will find this calculator invaluable in helping to analyze various disk configuration costs for Exchange 2007 mailbox servers. If you have any questions or suggestions, please email strgcalc@microsoft.com.

Ross Smith IV

Updated Jul 01, 2019
Version 2.0

5 Comments

  • There is also <a href="http://www.scriptlogic.com/products/message-stats">message stats</a> that includes very powerful exchange reporting abilities.

    This tool gathers a set of different metrics like mailbox usage, message sizes and quotas, distribution lists, public folders and even more that can really help in exchange migration or future grow planning.

    I can also recommend to take a look at <a href="http://www.scriptlogic.com/Solutions/exchange-management-tools.asp">scriptlogic's exchange management soluton</a> that includes 2 more bundled tools in addition to message stats.
  • A clone solution can meet the requirement, but it's cartainly not the only solution that will meet the requirement.  Hard coding clone assumptions into the tool is stacking the deck in a very unfair way.  I have to cry foul on that one.
  • XMSRE -


    VSS Clone implementations ensure a fast recovery mechanism (close to LCR/CCR activation timeframes).  Not all snapshot solutions can guarantee that (e.g. DPM is a fast backup solution but is not necessarily, a fast restore solution), though there are some that

    probably can.


    I'm not sure where it was indicated that we do not support backupless infrastructures with Exchange and continuous replication because we certainly do.  You simply enable circular logging (for more information, please see

    http://technet.microsoft.com/en-us/library/cc535020.aspx#LogTrunc).


    But yes, you are correct that the calculator currently depicts an end-to-end solution for SCC and not for CCR by excluding a CCR backup solution.



    However, the key point that I am making in the SCC vs. CCR comparison is that if you want to deploy large mailboxes (1GB or greater) then if you have database failure(s) you need a fast recovery mechanism.  For SCC, a VSS clone solution will meet that requirement;

    and for CCR that is you copy.  In no way am I implying that for one solution you need backups and the other you do not.



    Thanks for the feedback,


    Ross

  • I see two immediate problems with this tool:

    1.  It assumes clones.  Not all snapshots (example: MS Software VSS Provider based snapshots) are clones.
    2.  It does not account for backups of the CCR active or passive nodes.  Running CCR in a backupless environment is not supported by MS for Exchange 2007.

    In this case you are inflating the size of SCC on SAN by 300% based on faulty assumptions, and undersizing CCR on DAS by a similar factor in that you neglect to include backups (which you must have to be supported).  
  • I have meet Ross Smith last week in Barcelona, you rocks ! your sessions were the best I have seen on Exchange :)

    Thank you.
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EDIT: This post has been updated on 12/2/2008 to match the newest version of Exchange Server 2007 Mailbox Server Storage Cost Calculator.

\n

Overview

\n

Earlier versions of Exchange did not scale well enough, at a low enough cost per mailbox (because of expensive hardware and recovery options) to allow IT administrators the ability to match the ever increasing mailbox sizes of personal e-mail accounts. Exchange 2007 offers dramatic performance and scalability improvements when compared to prior versions of Exchange. Long recovery times have been a significant impediment to the adoption of larger mailbox sizes. The introduction of cluster continuous replication (CCR) offers the ability to rapidly recover from outages at a low cost. These performance and rapid recovery improvements enable IT departments to deploy large mailboxes easily and at a low cost. Increased mailbox sizes improve end-user productivity and satisfaction, reduce IT administrative costs, improve security, and help meet business and regulatory compliance requirements. For more information on the end user and IT benefits that are available by deploying large mailboxes in Exchange 2007, please see the whitepaper, Planning for Large Mailboxes with Exchange 2007.

\n

In order to move forward with various designs like large mailboxes, IT departments need to understand one of the chief costs associated with Exchange mailbox servers, namely storage. To that end, the Exchange 2007 Mailbox Storage Cost Calculator is designed to help you determine a portion of the mailbox server cost, namely the disk cost (purchase price and lifecycle power and cooling costs). The calculator helps in two ways:

\n

1. The calculator takes a series compares a series of storage design configurations and determines their respective costs. The underlying goal here is two-fold:

\n
\n

a. To show that you can achieve the same capacity and I/O requirements utilizing Small Form Factor SAS disks for relatively the same cost as Large Form Factor FC disks.

\n
\n
\n

b. To show that there are other disk solutions (e.g., SATA) that can be viable and reduce the disk footprint cost.

\n
\n

2. In the situation where you are unsure whether you want to deploy Single Copy Clusters (SCC) or Cluster Continuous Replication (CCR), the calculator can compare SCC+SAN disk configurations against CCR+DAS disk configurations from a cost perspective.

\n

Hopefully these measurements will show the value from a cost perspective in considering other disk designs, coupled with large mailboxes and continuous replication.

\n

In order to utilize the Exchange 2007 Mailbox Storage Cost Calculator, you need to understand the solution you are planning to deploy. In particular, you need to know:

\n\n

In addition, you should also keep in mind that by default this calculator model only focuses on the associated disk costs. For a complete end-to-end cost/mailbox these items will also need to be considered, just to name a few:

\n\n

How to Use the Calculator

\n

Input Worksheet

\n

When you launch the Exchange 2007 Mailbox Storage Cost Calculator, you are presented with the Input worksheet. This worksheet is broken down into 7 key areas.

\n

Important: The example configuration provided within this calculator is just that, an example, and as such, each input option needs to be evaluated as to how it will affect your design.

\n
Step 1 - Gather Storage Requirements
\n

The Exchange 2007 Mailbox Storage Cost Calculator can work hand-in-hand with the Exchange 2007 Mailbox Storage Requirements Calculator. You should first scope out your mailbox server storage design using the Requirements Calculator as its output can be inputted into this calculator.

\n
Step 2 - Solution Information
\n

In this section you are asked to fill in the necessary information about your mailbox server solution:

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Solution Information Settings

\n
\n

Value

\n
\n

Number of Mailbox Servers

\n
\n

6

\n
\n

Number of Mailboxes / Server

\n
\n

4000

\n
\n

Large Mailbox Size Deployment (1GB+)

\n
\n

Yes

\n
\n

High Availability Model

\n
\n

CCR

\n
\n

Number of Database Copies / Mailbox Server via Continuous Replication

\n
\n

2

\n
\n

VSS Backup Solution

\n
\n

Snapshot

\n
\n

Number of VSS Clone Copies

\n
\n

1

\n
\n

Third-Party Data Replication Solution

\n
\n

No

\n
\n

VSS Copy Support in Geographically Dispersed SCC

\n
\n

No

\n
\n\n
Step 3 - Storage Solution Costs
\n

In this section you are asked to determine how you would like the cost analysis performed. You can utilize the default model, which bases the cost analysis on individual component pricing, or you can select to perform the cost analysis based on a complete storage solution cost.

\n

For the first table, you can select as to whether you want to perform the cost analysis per individual component cost by selecting Yes, or you can choose to enter into the second table the entire solution's cost by selecting No.

\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Solution Cost Settings

\n
\n

Value

\n
\n

Perform Cost Analysis Based on Individual Component Prices

\n
\n

Yes

\n
\n

If you selected No in the prior table, then you may enter into this table the storage solution cost per storage configuration. In addition, you can also enter into this section any additional costs (e.g. software licensing costs) you would like included in the cost analysis.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Solution Cost Settings

\n
\n

Storage Solution Cost

\n
\n

Additional Costs

\n
\n

Configuration 1

\n
\n

$0.00

\n
\n

$0.00

\n
\n

Configuration 2

\n
\n

$0.00

\n
\n

$0.00

\n
\n

Configuration 3

\n
\n

$0.00

\n
\n

$0.00

\n
\n
Step 4 - Operational Metrics
\n

In this section you are asked to enter in the power and cooling operational costs and how many years you expect this solution to remain in production. For determining your power and cooling costs, please consult your data center management staff.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Category

\n
\n

Value

\n
\n

Power Cost ($/kwh)

\n
\n

$0.12

\n
\n

Cooling Cost ($/kwh)

\n
\n

$0.12

\n
\n

Production Lifecycle (years)

\n
\n

3

\n
\n
Step 5 - Disk Configuration
\n

In this section you are asked to enter in the various disk design configurations you wish to analyze from a cost perspective. For comparative analysis, you should enter at least 2 different disk configurations. This data can be obtained from the Requirements Calculator Storage Design worksheet's Storage Design Input Factors - Disk Selection section.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Disk Type

\n
\n

Log Disk Type

\n
\n

Restore LUN Disk Type

\n
\n

Configuration 1

\n
\n

146GB 10K 2.5\" SAS

\n
\n

146GB 10K 2.5\" SAS

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

Configuration 2

\n
\n

300GB 10K 3.5\" FC

\n
\n

300GB 10K 3.5\" FC

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

Configuration 3

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

In the second table, you are asked to enter in the various disk design configurations you wish to analyze from a cost perspective that will be used as part of the VSS backup infrastructure. Note that if you are performing snapshot copies and storing all the data on the same disks, you can select \"-\" for the Log Copy Disk Type.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Copy Disk Type

\n
\n

Log Copy Disk Type

\n
\n

VSS Backup Solution for Configuration 1

\n
\n

146GB 10K 2.5\" SAS

\n
\n

--

\n
\n

VSS Backup Solution for Configuration 2

\n
\n

300GB 10K 3.5\" FC

\n
\n

--

\n
\n

VSS Backup Solution for Configuration 3

\n
\n

1024GB 7.2K 3.5\" SATA

\n
\n

--

\n
\n
Step 6 - Number of Disks
\n

In this section you are asked to enter in the number of disks required for each disk design configuration you wish to analyze. This data can be obtained from the Requirements Calculator Storage Design worksheet's RAID Configurations / Server table (Note: when populating this table, only focus on the primary database copy and ignore the disk requirements for the continuous replication replica of disks).

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Number of Database Disks

\n
\n

Number of Log Disks

\n
\n

Number of Restore LUN Disks

\n
\n

Configuration 1

\n
\n

125

\n
\n

24

\n
\n

10

\n
\n

Configuration 2

\n
\n

60

\n
\n

12

\n
\n

10

\n
\n

Configuration 3

\n
\n

70

\n
\n

8

\n
\n

10

\n
\n

In the second table, you are asked to enter in the number of disks required for each VSS backup disk design configuration you wish to analyze.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Number of Database Copy Disks

\n
\n

Number of Log Copy Disks

\n
\n

VSS Backup Solution for Configuration 1

\n
\n

162

\n
\n

0

\n
\n

VSS Backup Solution for Configuration 2

\n
\n

84

\n
\n

0

\n
\n

VSS Backup Solution for Configuration 3

\n
\n

24

\n
\n

0

\n
\n
Step 7 - Disk Cost
\n

In this section you are asked to enter in the disk cost for each type of disk you entered into Step 4. You can obtain this data from your storage vendor or from whatever purchase vehicle you utilize.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Disk Type Cost

\n
\n

Log Disk Type Cost

\n
\n

Restore LUN Disk Type Cost

\n
\n

Configuration 1

\n
\n

$298.00

\n
\n

$298.00

\n
\n

$130.00

\n
\n

Configuration 2

\n
\n

$595.00

\n
\n

$595.00

\n
\n

$130.00

\n
\n

Configuration 3

\n
\n

$130.00

\n
\n

$130.00

\n
\n

$130.00

\n
\n

In the second table, you are asked to enter in the disk cost for each type of disk you entered into the VSS backup disk type table. You can obtain this data from your storage vendor or from whatever purchase vehicle you utilize.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Copy Disk Type Cost

\n
\n

Log Copy Disk Type Cost

\n
\n

VSS Backup Solution for Configuration 1

\n
\n

$298.00

\n
\n

$298.00

\n
\n

VSS Backup Solution for Configuration 2

\n
\n

$595.00

\n
\n

$595.00

\n
\n

VSS Backup Solution for Configuration 3

\n
\n

$275.00

\n
\n

$130.00

\n
\n
Step 8 - Disk Power Consumption
\n

In this section you are asked to enter in the active power consumption for each type of disk you entered into Step 4. You can obtain this data from your storage vendor or from the disk manufacturer's product literature.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Disk Active Power Consumption (w)

\n
\n

Log Disk Active Power Consumption (w)

\n
\n

Restore LUN Disk Active Power Consumption (w)

\n
\n

Configuration 1

\n
\n

8.0

\n
\n

8.0

\n
\n

10.6

\n
\n

Configuration 2

\n
\n

18.0

\n
\n

18.0

\n
\n

10.6

\n
\n

Configuration 3

\n
\n

10.6

\n
\n

10.6

\n
\n

10.6

\n
\n

In the second table, you are asked to enter in the active power consumption for each type of disk you entered into the VSS backup disk type table. You can obtain this data from your storage vendor or from the disk manufacturer's product literature.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Copy Disk Active Power Consumption (w)

\n
\n

Log Copy Disk Active Power Consumption (w)

\n
\n

VSS Backup Solution for Configuration 1

\n
\n

8.0

\n
\n

8.0

\n
\n

VSS Backup Solution for Configuration 2

\n
\n

18.0

\n
\n

18.0

\n
\n

VSS Backup Solution for Configuration 3

\n
\n

11.6

\n
\n

10.6

\n
\n
Step 9 - Storage Configuration
\n

In this section, you can choose to enter in details regarding your storage controllers and storage enclosures. Specifically you can define the total number of enclosures and controllers used in each configuration, the cost per device, and the active power consumption per device.

\n

For the first table, you can select as to whether you want to include the storage enclosure and/or storage controller configuration into the cost analysis.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Configuration Settings

\n
\n

Value

\n
\n

Include Enclosure Configuration in Cost Analysis

\n
\n

No

\n
\n

Include Controller Configuration in Cost Analysis

\n
\n

No

\n
\n

For the second table, you can enter in the details of the storage enclosure configuration per storage configuration. Please note that you should enter in the total number of enclosures used in the environment for each configuration.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Enclosure Configuration

\n
\n

Total Number of Enclosures / Environment

\n
\n

Cost / Enclosure

\n
\n

Active Power Consumption / Enclosure

\n
\n

Configuration 1

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Configuration 2

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Configuration 3

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

For the third table, you can enter in the details of the storage controller configuration per storage configuration. Please note that you should enter in the total number of controllers used in the environment for each configuration.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Controller Configuration

\n
\n

Total Number of Controllers / Environment

\n
\n

Cost / Controller

\n
\n

Active Power Consumption / Controller

\n
\n

Configuration 1

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Configuration 2

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Configuration 3

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

\n

\n

 

\nStorage Cost Results Worksheet

\n

\n

After entering in the required information on the Input Worksheet, you can access the Storage Costs Results Worksheet.

\n
Storage Cost Calculations Section
\n

For each disk configuration entered into the Input Worksheet, the calculator will derive the following information:

\n\n

This information is then utilized in the results section.

\n
Storage Cost Results Section
\n

Based on the information provided in the Input Worksheet, the calculator will generate three tables.

\n

The first table displays the capital expenses for each configuration. Specifically, the table outlines the total number of disks required for each disk configuration, the disk (or solution) cost, and the disk (or solution) cost per mailbox.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Capital Expenses

\n
\n

Total Number of Disks

\n
\n

Disk Cost

\n
\n

Disk Cost / Mailbox

\n
\n

Configuration 1 with VSS Backup Solution

\n
\n

2880

\n
\n

$838,080.00

\n
\n

$34.92

\n
\n

Configuration 2 with VSS Backup Solution

\n
\n

1488

\n
\n

$829,560.00

\n
\n

$34.57

\n
\n

Configuration 3 with VSS Backup Solution

\n
\n

1200

\n
\n

$176,880.00

\n
\n

$7.37

\n
\n

The second table displays the operational expenses for each configuration. Specifically, the table outlines the yearly power and cooling costs for the disks (or solution), the production lifecycle power and cooling cost, and the production lifecycle power and cooling cost per mailbox.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Operational Expenses

\n
\n

Yearly Total Power-Cooling Cost

\n
\n

Production Lifecycle Power-Cooling Cost

\n
\n

Production Lifecycle Power-Cooling Cost / Mailbox

\n
\n

Configuration 1 with VSS Backup Solution

\n
\n

$49,095.24

\n
\n

$147,285.73

\n
\n

$6.14

\n
\n

Configuration 2 with VSS Backup Solution

\n
\n

$54,443.75

\n
\n

$163,331.25

\n
\n

$6.81

\n
\n

Configuration 3 with VSS Backup Solution

\n
\n

$27,045.27

\n
\n

$81,135.82

\n
\n

$3.38

\n
\n

The third table displays the total expenses for each configuration. Specifically, the table outlines the total disk (or solution) cost and production lifecycle power and cooling cost and those costs per mailbox. The calculator will also visually show how the costs compare with one another: green indicates the most affordable solution, yellow indicates the second affordable solution, and red indicates the most expensive solution.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Total Expenses

\n
\n

Total Disk & Power-Cooling Cost

\n
\n

Total Disk & Power-Cooling Cost / Mailbox

\n
\n

Configuration 1 with VSS Backup Solution

\n
\n

$985,365.73

\n
\n

$41.06

\n
\n

Configuration 2 with VSS Backup Solution

\n
\n

$992,891.25

\n
\n

$41.37

\n
\n

Configuration 3 with VSS Backup Solution

\n
\n

$258,015.82

\n
\n

$10.75

\n
\n

Storage Cost Charts Worksheet

\n

The Storage Cost Charts worksheet simply takes the data that is provided in the Storage Cost Results section and provides it in a graphical form which can then be used in presentations, or delivered to business decision makers, etc.

\n

SCC vs. CCR Worksheet

\n

This worksheet is designed to help you when you want to understand the differences between deploying in an SCC configuration or a CCR configuration; differences like:

\n\n
SCC vs. CCR Input Factors - Solution Configuration
\n

Step 1 - Many of the data points used to perform the SCC and CCR comparison are taken from the Input worksheet:

\n\n

However the Input worksheet does not include all the data points necessary to make this comparison. Those differences can be entered into this section's table:

\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Category

\n
\n

Value

\n
\n

Number of SCR Copies

\n
\n

0

\n
\n
SCC vs. CCR Input Factors - Storage Solution Costs
\n

Step 2 - In this section you are asked to determine how you would like the cost analysis performed. You can utilize the default model, which bases the cost analysis on individual component pricing, or you can select to perform the cost analysis based on a complete storage solution cost.

\n

For the first table, you can select as to whether you want to perform the cost analysis per individual component cost by selecting Yes, or you can choose to enter into the second table the entire solution's cost by selecting No.

\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Solution Cost Settings

\n
\n

Value

\n
\n

Perform Cost Analysis Based on Individual Component Prices

\n
\n

Yes

\n
\n

If you selected No in the prior table, then you may enter into this table the storage solution cost for the SCC storage configuration and the CCR storage configuration. In addition, you can also enter into this section any additional costs (e.g. software licensing costs) you would like included in the cost analysis.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Solution Cost Settings

\n
\n

Storage Solution Cost

\n
\n

Additional Costs

\n
\n

SCC Storage Configuration (SAN)

\n
\n

$0.00

\n
\n

$0.00

\n
\n

CCR Storage Configuration (DAS)

\n
\n

$0.00

\n
\n

$0.00

\n
\n
SCC vs. CCR Input Factors - SCC Configuration
\n

Step 3 - For this table, you can enter in various pieces of information regarding the Single Copy Cluster environment:

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

SCC Configuration Settings

\n
\n

Value

\n
\n

VSS Backup Solution

\n
\n

Clone

\n
\n

Number of VSS Clone Copies

\n
\n

2

\n
\n

Geographically Dispersed SCC (3rd Party Data Replication)

\n
\n

No

\n
\n

VSS Copy Support in Geographically Dispersed SCC

\n
\n

No

\n
\n

Step 4 - For this table, you can enter in the desired storage configuration you wish to use in your SCC environment. Select the appropriate disk type and enter in the number of required disk spindles per mailbox server, as well as, the disk cost and the disk power consumption.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

SCC Disk Configuration (SAN)

\n
\n

Database

\n
\n

Log

\n
\n

Restore LUN

\n
\n

Disk Type

\n
\n

300GB 10K 3.5\" FC

\n
\n

300GB 10K 3.5\" FC

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

Number of Disks / Mailbox Server

\n
\n

60

\n
\n

12

\n
\n

10

\n
\n

Disk Cost ($)

\n
\n

$595.00

\n
\n

$595.00

\n
\n

$130.00

\n
\n

Disk Active Power Consumption ($)

\n
\n

18.0

\n
\n

18.0

\n
\n

10.6

\n
\n

Step 5 - For this table, you can enter in the design VSS backup storage configuration you wish to use with your SCC environment. Select the appropriate disk type and enter in the number of required disk spindles per mailbox server, as well as, the disk cost and the disk power consumption. Note that if you are performing snapshot copies and storing all the data on the same disks, you can select \"-\" for the Log Copy Disk Type.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

SCC VSS Backup Configuration (SAN)

\n
\n

Database Copy

\n
\n

Log Copy

\n
\n

Disk Type

\n
\n

300GB 10K 3.5\" FC

\n
\n

300GB 10K 3.5\" FC

\n
\n

Number of Disks / Mailbox Server

\n
\n

60

\n
\n

12

\n
\n

Disk Cost ($)

\n
\n

$595.00

\n
\n

$595.00

\n
\n

Disk Active Power Consumption ($)

\n
\n

18.0

\n
\n

18.0

\n
\n

Step 6 - For this section, you can choose to enter in details regarding your storage controllers and storage enclosures. Specifically you can define the total number of enclosures and controllers used in each configuration, the cost per device, and the active power consumption per device. For the first table, you can select as to whether you want to include the storage enclosure and/or storage controller configuration into the cost analysis.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Configuration Settings

\n
\n

Value

\n
\n

Include Enclosure Configuration in Cost Analysis

\n
\n

No

\n
\n

Include Controller Configuration in Cost Analysis

\n
\n

No

\n
\n

For the second table, you can enter in the details of the storage enclosure and storage controller configuration. Please note that you should enter in the total number of devices used in the environment for each configuration.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

SCC Storage Configuration

\n
\n

Total Number of Devices / Environment

\n
\n

Cost / Device

\n
\n

Active Power Consumption / Device

\n
\n

Storage Enclosure

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Storage Controller

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n
SCC vs. CCR Input Factors - CCR Configuration
\n

Step 7 - For this table, you can enter in various pieces of information regarding the Cluster Continuous Replication environment:

\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

CCR Configuration Settings

\n
\n

Value

\n
\n

VSS Backup Solution

\n
\n

Snapshot

\n
\n

Step 8 - For this table, you can enter in the desired storage configuration you wish to use in your CCR environment. Select the appropriate disk type and enter in the number of required disk spindles per node, as well as, the disk cost and the disk power consumption.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

CCR Disk Configuration (DAS)

\n
\n

Database

\n
\n

Log

\n
\n

Restore LUN

\n
\n

Disk Type

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

Number of Disks / Node

\n
\n

70

\n
\n

8

\n
\n

10

\n
\n

Disk Cost ($)

\n
\n

$130.00

\n
\n

$130.00

\n
\n

$130.00

\n
\n

Disk Active Power Consumption ($)

\n
\n

10.6

\n
\n

10.6

\n
\n

10.6

\n
\n

Step 9 - For this table, you can enter in the design VSS backup storage configuration you wish to use with your CCR environment. Select the appropriate disk type and enter in the number of required disk spindles per mailbox server, as well as, the disk cost and the disk power consumption. Note that if you are performing snapshot copies and storing all the data on the same disks, you can select \"-\" for the Log Copy Disk Type.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

CCR VSS Backup Configuration (DAS)

\n
\n

Database Copy

\n
\n

Log Copy

\n
\n

Disk Type

\n
\n

1024GB 7.2K 3.5\" SATA

\n
\n

--

\n
\n

Number of Disks / Mailbox Server

\n
\n

24

\n
\n

12

\n
\n

Disk Cost ($)

\n
\n

$275.00

\n
\n

$130.00

\n
\n

Disk Active Power Consumption ($)

\n
\n

11.6

\n
\n

10.6

\n
\n

Step 10 - For this section, you can choose to enter in details regarding your storage controllers and storage enclosures. Specifically you can define the total number of enclosures and controllers used in each configuration, the cost per device, and the active power consumption per device. For the first table, you can select as to whether you want to include the storage enclosure and/or storage controller configuration into the cost analysis.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Configuration Settings

\n
\n

Value

\n
\n

Include Enclosure Configuration in Cost Analysis

\n
\n

No

\n
\n

Include Controller Configuration in Cost Analysis

\n
\n

No

\n
\n

For the second table, you can enter in the details of the storage enclosure and storage controller configuration. Please note that you should enter in the total number of devices used in the environment for each configuration.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

CCR Storage Configuration

\n
\n

Total Number of Devices / Environment

\n
\n

Cost / Device

\n
\n

Active Power Consumption / Device

\n
\n

Storage Enclosure

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Storage Controller

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n
SCC vs. CCR Calculations Section
\n

For each disk configuration entered into the Input Worksheet, the calculator will derive the following information:

\n\n

This information is then utilized in the results section.

\n
SCC vs. CCR Results Section
\n

The first table outlines the total number of disks required for the SCC and CCR configurations, as well as, the number of data copies that exist for each solution. If you enabled VSS clones for your SCC solution, this will be reflected in the total copy count. If you also select to deploy a third-party data replication solution for SCC, this will increase the copy count by one.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Total Number of Disks

\n
\n

Total Number of Data Copies / Server

\n
\n

Types of Data Copies / Server

\n
\n

SCC Configuration (SAN) with VSS Backup Solution

\n
\n

1,356

\n
\n

3

\n
\n

1 + 2 VSS Clones

\n
\n

CCR Configuration (DAS) with VSS Backup Solution

\n
\n

1,200

\n
\n

2

\n
\n

2 + Snapshot Copies

\n
\n

The second table displays the capital expenses for the SCC and CCR configurations. Specifically, the table outlines the total number of disks required for each disk configuration, the disk (or solution) cost, and the disk (or solution) cost per mailbox. The calculator will also visually show how the costs compare with one another: green indicates the most affordable solution, yellow indicates the second affordable solution, and red indicates the most expensive solution

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Capital Expenses

\n
\n

Total Number of Disks

\n
\n

Disk Cost

\n
\n

Disk Cost / Mailbox

\n
\n

SCC Configuration (SAN) with VSS Backup Solution

\n
\n

1356

\n
\n

$778,920.00

\n
\n

$32.46

\n
\n

CCR Configuration (DAS) with VSS Backup Solution

\n
\n

1200

\n
\n

$176,880.00

\n
\n

$7.37

\n
\n

The third table displays the operational expenses for the SCC and CCR configurations. Specifically, the table outlines the yearly power and cooling costs for the disks (or solution), the production lifecycle power and cooling cost, and the production lifecycle power and cooling cost per mailbox.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Operational Expenses

\n
\n

Yearly Total Power-Cooling Cost

\n
\n

Production Lifecycle Power-Cooling Cost

\n
\n

Production Lifecycle Power-Cooling Cost / Mailbox

\n
\n

SCC Configuration (SAN) with VSS Backup Solution

\n
\n

$50,381.91

\n
\n

$151,145.74

\n
\n

$6.30

\n
\n

CCR Configuration (DAS) with VSS Backup Solution

\n
\n

$27,045.27

\n
\n

$81,135.82

\n
\n

$3.38

\n
\n

The fourth table displays the total expenses for the SCC and CCR configurations. Specifically, the table outlines the total disk (or solution) cost and production lifecycle power and cooling cost and those costs per mailbox.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Total Expenses

\n
\n

Total Disk & Power-Cooling Cost

\n
\n

Total Disk & Power-Cooling Cost / Mailbox

\n
\n

SCC Configuration (SAN) with VSS Backup Solution

\n
\n

$930,065.74

\n
\n

$38.75

\n
\n

CCR Configuration (DAS) with VSS Backup Solution

\n
\n

$258,015.82

\n
\n

$10.75

\n
\n

 

\n
\n

Download: Exchange 2007 Mailbox Server Storage Cost Calculator

\n
\n

Hopefully you will find this calculator invaluable in helping to analyze various disk configuration costs for Exchange 2007 mailbox servers. If you have any questions or suggestions, please email strgcalc@microsoft.com.

\n

Ross Smith IV

","body@stringLength":"331484","rawBody":"

EDIT: This post has been updated on 12/2/2008 to match the newest version of Exchange Server 2007 Mailbox Server Storage Cost Calculator.

\n

Overview

\n

Earlier versions of Exchange did not scale well enough, at a low enough cost per mailbox (because of expensive hardware and recovery options) to allow IT administrators the ability to match the ever increasing mailbox sizes of personal e-mail accounts. Exchange 2007 offers dramatic performance and scalability improvements when compared to prior versions of Exchange. Long recovery times have been a significant impediment to the adoption of larger mailbox sizes. The introduction of cluster continuous replication (CCR) offers the ability to rapidly recover from outages at a low cost. These performance and rapid recovery improvements enable IT departments to deploy large mailboxes easily and at a low cost. Increased mailbox sizes improve end-user productivity and satisfaction, reduce IT administrative costs, improve security, and help meet business and regulatory compliance requirements. For more information on the end user and IT benefits that are available by deploying large mailboxes in Exchange 2007, please see the whitepaper, Planning for Large Mailboxes with Exchange 2007.

\n

In order to move forward with various designs like large mailboxes, IT departments need to understand one of the chief costs associated with Exchange mailbox servers, namely storage. To that end, the Exchange 2007 Mailbox Storage Cost Calculator is designed to help you determine a portion of the mailbox server cost, namely the disk cost (purchase price and lifecycle power and cooling costs). The calculator helps in two ways:

\n

1. The calculator takes a series compares a series of storage design configurations and determines their respective costs. The underlying goal here is two-fold:

\n
\n

a. To show that you can achieve the same capacity and I/O requirements utilizing Small Form Factor SAS disks for relatively the same cost as Large Form Factor FC disks.

\n
\n
\n

b. To show that there are other disk solutions (e.g., SATA) that can be viable and reduce the disk footprint cost.

\n
\n

2. In the situation where you are unsure whether you want to deploy Single Copy Clusters (SCC) or Cluster Continuous Replication (CCR), the calculator can compare SCC+SAN disk configurations against CCR+DAS disk configurations from a cost perspective.

\n

Hopefully these measurements will show the value from a cost perspective in considering other disk designs, coupled with large mailboxes and continuous replication.

\n

In order to utilize the Exchange 2007 Mailbox Storage Cost Calculator, you need to understand the solution you are planning to deploy. In particular, you need to know:

\n\n

In addition, you should also keep in mind that by default this calculator model only focuses on the associated disk costs. For a complete end-to-end cost/mailbox these items will also need to be considered, just to name a few:

\n\n

How to Use the Calculator

\n

Input Worksheet

\n

When you launch the Exchange 2007 Mailbox Storage Cost Calculator, you are presented with the Input worksheet. This worksheet is broken down into 7 key areas.

\n

Important: The example configuration provided within this calculator is just that, an example, and as such, each input option needs to be evaluated as to how it will affect your design.

\n
Step 1 - Gather Storage Requirements
\n

The Exchange 2007 Mailbox Storage Cost Calculator can work hand-in-hand with the Exchange 2007 Mailbox Storage Requirements Calculator. You should first scope out your mailbox server storage design using the Requirements Calculator as its output can be inputted into this calculator.

\n
Step 2 - Solution Information
\n

In this section you are asked to fill in the necessary information about your mailbox server solution:

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Solution Information Settings

\n
\n

Value

\n
\n

Number of Mailbox Servers

\n
\n

6

\n
\n

Number of Mailboxes / Server

\n
\n

4000

\n
\n

Large Mailbox Size Deployment (1GB+)

\n
\n

Yes

\n
\n

High Availability Model

\n
\n

CCR

\n
\n

Number of Database Copies / Mailbox Server via Continuous Replication

\n
\n

2

\n
\n

VSS Backup Solution

\n
\n

Snapshot

\n
\n

Number of VSS Clone Copies

\n
\n

1

\n
\n

Third-Party Data Replication Solution

\n
\n

No

\n
\n

VSS Copy Support in Geographically Dispersed SCC

\n
\n

No

\n
\n\n
Step 3 - Storage Solution Costs
\n

In this section you are asked to determine how you would like the cost analysis performed. You can utilize the default model, which bases the cost analysis on individual component pricing, or you can select to perform the cost analysis based on a complete storage solution cost.

\n

For the first table, you can select as to whether you want to perform the cost analysis per individual component cost by selecting Yes, or you can choose to enter into the second table the entire solution's cost by selecting No.

\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Solution Cost Settings

\n
\n

Value

\n
\n

Perform Cost Analysis Based on Individual Component Prices

\n
\n

Yes

\n
\n

If you selected No in the prior table, then you may enter into this table the storage solution cost per storage configuration. In addition, you can also enter into this section any additional costs (e.g. software licensing costs) you would like included in the cost analysis.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Solution Cost Settings

\n
\n

Storage Solution Cost

\n
\n

Additional Costs

\n
\n

Configuration 1

\n
\n

$0.00

\n
\n

$0.00

\n
\n

Configuration 2

\n
\n

$0.00

\n
\n

$0.00

\n
\n

Configuration 3

\n
\n

$0.00

\n
\n

$0.00

\n
\n
Step 4 - Operational Metrics
\n

In this section you are asked to enter in the power and cooling operational costs and how many years you expect this solution to remain in production. For determining your power and cooling costs, please consult your data center management staff.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Category

\n
\n

Value

\n
\n

Power Cost ($/kwh)

\n
\n

$0.12

\n
\n

Cooling Cost ($/kwh)

\n
\n

$0.12

\n
\n

Production Lifecycle (years)

\n
\n

3

\n
\n
Step 5 - Disk Configuration
\n

In this section you are asked to enter in the various disk design configurations you wish to analyze from a cost perspective. For comparative analysis, you should enter at least 2 different disk configurations. This data can be obtained from the Requirements Calculator Storage Design worksheet's Storage Design Input Factors - Disk Selection section.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Disk Type

\n
\n

Log Disk Type

\n
\n

Restore LUN Disk Type

\n
\n

Configuration 1

\n
\n

146GB 10K 2.5\" SAS

\n
\n

146GB 10K 2.5\" SAS

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

Configuration 2

\n
\n

300GB 10K 3.5\" FC

\n
\n

300GB 10K 3.5\" FC

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

Configuration 3

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

In the second table, you are asked to enter in the various disk design configurations you wish to analyze from a cost perspective that will be used as part of the VSS backup infrastructure. Note that if you are performing snapshot copies and storing all the data on the same disks, you can select \"-\" for the Log Copy Disk Type.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Copy Disk Type

\n
\n

Log Copy Disk Type

\n
\n

VSS Backup Solution for Configuration 1

\n
\n

146GB 10K 2.5\" SAS

\n
\n

--

\n
\n

VSS Backup Solution for Configuration 2

\n
\n

300GB 10K 3.5\" FC

\n
\n

--

\n
\n

VSS Backup Solution for Configuration 3

\n
\n

1024GB 7.2K 3.5\" SATA

\n
\n

--

\n
\n
Step 6 - Number of Disks
\n

In this section you are asked to enter in the number of disks required for each disk design configuration you wish to analyze. This data can be obtained from the Requirements Calculator Storage Design worksheet's RAID Configurations / Server table (Note: when populating this table, only focus on the primary database copy and ignore the disk requirements for the continuous replication replica of disks).

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Number of Database Disks

\n
\n

Number of Log Disks

\n
\n

Number of Restore LUN Disks

\n
\n

Configuration 1

\n
\n

125

\n
\n

24

\n
\n

10

\n
\n

Configuration 2

\n
\n

60

\n
\n

12

\n
\n

10

\n
\n

Configuration 3

\n
\n

70

\n
\n

8

\n
\n

10

\n
\n

In the second table, you are asked to enter in the number of disks required for each VSS backup disk design configuration you wish to analyze.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Number of Database Copy Disks

\n
\n

Number of Log Copy Disks

\n
\n

VSS Backup Solution for Configuration 1

\n
\n

162

\n
\n

0

\n
\n

VSS Backup Solution for Configuration 2

\n
\n

84

\n
\n

0

\n
\n

VSS Backup Solution for Configuration 3

\n
\n

24

\n
\n

0

\n
\n
Step 7 - Disk Cost
\n

In this section you are asked to enter in the disk cost for each type of disk you entered into Step 4. You can obtain this data from your storage vendor or from whatever purchase vehicle you utilize.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Disk Type Cost

\n
\n

Log Disk Type Cost

\n
\n

Restore LUN Disk Type Cost

\n
\n

Configuration 1

\n
\n

$298.00

\n
\n

$298.00

\n
\n

$130.00

\n
\n

Configuration 2

\n
\n

$595.00

\n
\n

$595.00

\n
\n

$130.00

\n
\n

Configuration 3

\n
\n

$130.00

\n
\n

$130.00

\n
\n

$130.00

\n
\n

In the second table, you are asked to enter in the disk cost for each type of disk you entered into the VSS backup disk type table. You can obtain this data from your storage vendor or from whatever purchase vehicle you utilize.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Copy Disk Type Cost

\n
\n

Log Copy Disk Type Cost

\n
\n

VSS Backup Solution for Configuration 1

\n
\n

$298.00

\n
\n

$298.00

\n
\n

VSS Backup Solution for Configuration 2

\n
\n

$595.00

\n
\n

$595.00

\n
\n

VSS Backup Solution for Configuration 3

\n
\n

$275.00

\n
\n

$130.00

\n
\n
Step 8 - Disk Power Consumption
\n

In this section you are asked to enter in the active power consumption for each type of disk you entered into Step 4. You can obtain this data from your storage vendor or from the disk manufacturer's product literature.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Disk Active Power Consumption (w)

\n
\n

Log Disk Active Power Consumption (w)

\n
\n

Restore LUN Disk Active Power Consumption (w)

\n
\n

Configuration 1

\n
\n

8.0

\n
\n

8.0

\n
\n

10.6

\n
\n

Configuration 2

\n
\n

18.0

\n
\n

18.0

\n
\n

10.6

\n
\n

Configuration 3

\n
\n

10.6

\n
\n

10.6

\n
\n

10.6

\n
\n

In the second table, you are asked to enter in the active power consumption for each type of disk you entered into the VSS backup disk type table. You can obtain this data from your storage vendor or from the disk manufacturer's product literature.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Database Copy Disk Active Power Consumption (w)

\n
\n

Log Copy Disk Active Power Consumption (w)

\n
\n

VSS Backup Solution for Configuration 1

\n
\n

8.0

\n
\n

8.0

\n
\n

VSS Backup Solution for Configuration 2

\n
\n

18.0

\n
\n

18.0

\n
\n

VSS Backup Solution for Configuration 3

\n
\n

11.6

\n
\n

10.6

\n
\n
Step 9 - Storage Configuration
\n

In this section, you can choose to enter in details regarding your storage controllers and storage enclosures. Specifically you can define the total number of enclosures and controllers used in each configuration, the cost per device, and the active power consumption per device.

\n

For the first table, you can select as to whether you want to include the storage enclosure and/or storage controller configuration into the cost analysis.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Configuration Settings

\n
\n

Value

\n
\n

Include Enclosure Configuration in Cost Analysis

\n
\n

No

\n
\n

Include Controller Configuration in Cost Analysis

\n
\n

No

\n
\n

For the second table, you can enter in the details of the storage enclosure configuration per storage configuration. Please note that you should enter in the total number of enclosures used in the environment for each configuration.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Enclosure Configuration

\n
\n

Total Number of Enclosures / Environment

\n
\n

Cost / Enclosure

\n
\n

Active Power Consumption / Enclosure

\n
\n

Configuration 1

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Configuration 2

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Configuration 3

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

For the third table, you can enter in the details of the storage controller configuration per storage configuration. Please note that you should enter in the total number of controllers used in the environment for each configuration.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Controller Configuration

\n
\n

Total Number of Controllers / Environment

\n
\n

Cost / Controller

\n
\n

Active Power Consumption / Controller

\n
\n

Configuration 1

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Configuration 2

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Configuration 3

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

\n

\n

 

\nStorage Cost Results Worksheet

\n

\n

After entering in the required information on the Input Worksheet, you can access the Storage Costs Results Worksheet.

\n
Storage Cost Calculations Section
\n

For each disk configuration entered into the Input Worksheet, the calculator will derive the following information:

\n\n

This information is then utilized in the results section.

\n
Storage Cost Results Section
\n

Based on the information provided in the Input Worksheet, the calculator will generate three tables.

\n

The first table displays the capital expenses for each configuration. Specifically, the table outlines the total number of disks required for each disk configuration, the disk (or solution) cost, and the disk (or solution) cost per mailbox.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Capital Expenses

\n
\n

Total Number of Disks

\n
\n

Disk Cost

\n
\n

Disk Cost / Mailbox

\n
\n

Configuration 1 with VSS Backup Solution

\n
\n

2880

\n
\n

$838,080.00

\n
\n

$34.92

\n
\n

Configuration 2 with VSS Backup Solution

\n
\n

1488

\n
\n

$829,560.00

\n
\n

$34.57

\n
\n

Configuration 3 with VSS Backup Solution

\n
\n

1200

\n
\n

$176,880.00

\n
\n

$7.37

\n
\n

The second table displays the operational expenses for each configuration. Specifically, the table outlines the yearly power and cooling costs for the disks (or solution), the production lifecycle power and cooling cost, and the production lifecycle power and cooling cost per mailbox.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Operational Expenses

\n
\n

Yearly Total Power-Cooling Cost

\n
\n

Production Lifecycle Power-Cooling Cost

\n
\n

Production Lifecycle Power-Cooling Cost / Mailbox

\n
\n

Configuration 1 with VSS Backup Solution

\n
\n

$49,095.24

\n
\n

$147,285.73

\n
\n

$6.14

\n
\n

Configuration 2 with VSS Backup Solution

\n
\n

$54,443.75

\n
\n

$163,331.25

\n
\n

$6.81

\n
\n

Configuration 3 with VSS Backup Solution

\n
\n

$27,045.27

\n
\n

$81,135.82

\n
\n

$3.38

\n
\n

The third table displays the total expenses for each configuration. Specifically, the table outlines the total disk (or solution) cost and production lifecycle power and cooling cost and those costs per mailbox. The calculator will also visually show how the costs compare with one another: green indicates the most affordable solution, yellow indicates the second affordable solution, and red indicates the most expensive solution.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Total Expenses

\n
\n

Total Disk & Power-Cooling Cost

\n
\n

Total Disk & Power-Cooling Cost / Mailbox

\n
\n

Configuration 1 with VSS Backup Solution

\n
\n

$985,365.73

\n
\n

$41.06

\n
\n

Configuration 2 with VSS Backup Solution

\n
\n

$992,891.25

\n
\n

$41.37

\n
\n

Configuration 3 with VSS Backup Solution

\n
\n

$258,015.82

\n
\n

$10.75

\n
\n

Storage Cost Charts Worksheet

\n

The Storage Cost Charts worksheet simply takes the data that is provided in the Storage Cost Results section and provides it in a graphical form which can then be used in presentations, or delivered to business decision makers, etc.

\n

SCC vs. CCR Worksheet

\n

This worksheet is designed to help you when you want to understand the differences between deploying in an SCC configuration or a CCR configuration; differences like:

\n\n
SCC vs. CCR Input Factors - Solution Configuration
\n

Step 1 - Many of the data points used to perform the SCC and CCR comparison are taken from the Input worksheet:

\n\n

However the Input worksheet does not include all the data points necessary to make this comparison. Those differences can be entered into this section's table:

\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Category

\n
\n

Value

\n
\n

Number of SCR Copies

\n
\n

0

\n
\n
SCC vs. CCR Input Factors - Storage Solution Costs
\n

Step 2 - In this section you are asked to determine how you would like the cost analysis performed. You can utilize the default model, which bases the cost analysis on individual component pricing, or you can select to perform the cost analysis based on a complete storage solution cost.

\n

For the first table, you can select as to whether you want to perform the cost analysis per individual component cost by selecting Yes, or you can choose to enter into the second table the entire solution's cost by selecting No.

\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Solution Cost Settings

\n
\n

Value

\n
\n

Perform Cost Analysis Based on Individual Component Prices

\n
\n

Yes

\n
\n

If you selected No in the prior table, then you may enter into this table the storage solution cost for the SCC storage configuration and the CCR storage configuration. In addition, you can also enter into this section any additional costs (e.g. software licensing costs) you would like included in the cost analysis.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Solution Cost Settings

\n
\n

Storage Solution Cost

\n
\n

Additional Costs

\n
\n

SCC Storage Configuration (SAN)

\n
\n

$0.00

\n
\n

$0.00

\n
\n

CCR Storage Configuration (DAS)

\n
\n

$0.00

\n
\n

$0.00

\n
\n
SCC vs. CCR Input Factors - SCC Configuration
\n

Step 3 - For this table, you can enter in various pieces of information regarding the Single Copy Cluster environment:

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

SCC Configuration Settings

\n
\n

Value

\n
\n

VSS Backup Solution

\n
\n

Clone

\n
\n

Number of VSS Clone Copies

\n
\n

2

\n
\n

Geographically Dispersed SCC (3rd Party Data Replication)

\n
\n

No

\n
\n

VSS Copy Support in Geographically Dispersed SCC

\n
\n

No

\n
\n

Step 4 - For this table, you can enter in the desired storage configuration you wish to use in your SCC environment. Select the appropriate disk type and enter in the number of required disk spindles per mailbox server, as well as, the disk cost and the disk power consumption.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

SCC Disk Configuration (SAN)

\n
\n

Database

\n
\n

Log

\n
\n

Restore LUN

\n
\n

Disk Type

\n
\n

300GB 10K 3.5\" FC

\n
\n

300GB 10K 3.5\" FC

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

Number of Disks / Mailbox Server

\n
\n

60

\n
\n

12

\n
\n

10

\n
\n

Disk Cost ($)

\n
\n

$595.00

\n
\n

$595.00

\n
\n

$130.00

\n
\n

Disk Active Power Consumption ($)

\n
\n

18.0

\n
\n

18.0

\n
\n

10.6

\n
\n

Step 5 - For this table, you can enter in the design VSS backup storage configuration you wish to use with your SCC environment. Select the appropriate disk type and enter in the number of required disk spindles per mailbox server, as well as, the disk cost and the disk power consumption. Note that if you are performing snapshot copies and storing all the data on the same disks, you can select \"-\" for the Log Copy Disk Type.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

SCC VSS Backup Configuration (SAN)

\n
\n

Database Copy

\n
\n

Log Copy

\n
\n

Disk Type

\n
\n

300GB 10K 3.5\" FC

\n
\n

300GB 10K 3.5\" FC

\n
\n

Number of Disks / Mailbox Server

\n
\n

60

\n
\n

12

\n
\n

Disk Cost ($)

\n
\n

$595.00

\n
\n

$595.00

\n
\n

Disk Active Power Consumption ($)

\n
\n

18.0

\n
\n

18.0

\n
\n

Step 6 - For this section, you can choose to enter in details regarding your storage controllers and storage enclosures. Specifically you can define the total number of enclosures and controllers used in each configuration, the cost per device, and the active power consumption per device. For the first table, you can select as to whether you want to include the storage enclosure and/or storage controller configuration into the cost analysis.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Configuration Settings

\n
\n

Value

\n
\n

Include Enclosure Configuration in Cost Analysis

\n
\n

No

\n
\n

Include Controller Configuration in Cost Analysis

\n
\n

No

\n
\n

For the second table, you can enter in the details of the storage enclosure and storage controller configuration. Please note that you should enter in the total number of devices used in the environment for each configuration.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

SCC Storage Configuration

\n
\n

Total Number of Devices / Environment

\n
\n

Cost / Device

\n
\n

Active Power Consumption / Device

\n
\n

Storage Enclosure

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Storage Controller

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n
SCC vs. CCR Input Factors - CCR Configuration
\n

Step 7 - For this table, you can enter in various pieces of information regarding the Cluster Continuous Replication environment:

\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

CCR Configuration Settings

\n
\n

Value

\n
\n

VSS Backup Solution

\n
\n

Snapshot

\n
\n

Step 8 - For this table, you can enter in the desired storage configuration you wish to use in your CCR environment. Select the appropriate disk type and enter in the number of required disk spindles per node, as well as, the disk cost and the disk power consumption.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

CCR Disk Configuration (DAS)

\n
\n

Database

\n
\n

Log

\n
\n

Restore LUN

\n
\n

Disk Type

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

500GB 7.2K 3.5\" SATA

\n
\n

Number of Disks / Node

\n
\n

70

\n
\n

8

\n
\n

10

\n
\n

Disk Cost ($)

\n
\n

$130.00

\n
\n

$130.00

\n
\n

$130.00

\n
\n

Disk Active Power Consumption ($)

\n
\n

10.6

\n
\n

10.6

\n
\n

10.6

\n
\n

Step 9 - For this table, you can enter in the design VSS backup storage configuration you wish to use with your CCR environment. Select the appropriate disk type and enter in the number of required disk spindles per mailbox server, as well as, the disk cost and the disk power consumption. Note that if you are performing snapshot copies and storing all the data on the same disks, you can select \"-\" for the Log Copy Disk Type.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

CCR VSS Backup Configuration (DAS)

\n
\n

Database Copy

\n
\n

Log Copy

\n
\n

Disk Type

\n
\n

1024GB 7.2K 3.5\" SATA

\n
\n

--

\n
\n

Number of Disks / Mailbox Server

\n
\n

24

\n
\n

12

\n
\n

Disk Cost ($)

\n
\n

$275.00

\n
\n

$130.00

\n
\n

Disk Active Power Consumption ($)

\n
\n

11.6

\n
\n

10.6

\n
\n

Step 10 - For this section, you can choose to enter in details regarding your storage controllers and storage enclosures. Specifically you can define the total number of enclosures and controllers used in each configuration, the cost per device, and the active power consumption per device. For the first table, you can select as to whether you want to include the storage enclosure and/or storage controller configuration into the cost analysis.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Storage Configuration Settings

\n
\n

Value

\n
\n

Include Enclosure Configuration in Cost Analysis

\n
\n

No

\n
\n

Include Controller Configuration in Cost Analysis

\n
\n

No

\n
\n

For the second table, you can enter in the details of the storage enclosure and storage controller configuration. Please note that you should enter in the total number of devices used in the environment for each configuration.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

CCR Storage Configuration

\n
\n

Total Number of Devices / Environment

\n
\n

Cost / Device

\n
\n

Active Power Consumption / Device

\n
\n

Storage Enclosure

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n

Storage Controller

\n
\n

0

\n
\n

$0.00

\n
\n

0.0

\n
\n
SCC vs. CCR Calculations Section
\n

For each disk configuration entered into the Input Worksheet, the calculator will derive the following information:

\n\n

This information is then utilized in the results section.

\n
SCC vs. CCR Results Section
\n

The first table outlines the total number of disks required for the SCC and CCR configurations, as well as, the number of data copies that exist for each solution. If you enabled VSS clones for your SCC solution, this will be reflected in the total copy count. If you also select to deploy a third-party data replication solution for SCC, this will increase the copy count by one.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Total Number of Disks

\n
\n

Total Number of Data Copies / Server

\n
\n

Types of Data Copies / Server

\n
\n

SCC Configuration (SAN) with VSS Backup Solution

\n
\n

1,356

\n
\n

3

\n
\n

1 + 2 VSS Clones

\n
\n

CCR Configuration (DAS) with VSS Backup Solution

\n
\n

1,200

\n
\n

2

\n
\n

2 + Snapshot Copies

\n
\n

The second table displays the capital expenses for the SCC and CCR configurations. Specifically, the table outlines the total number of disks required for each disk configuration, the disk (or solution) cost, and the disk (or solution) cost per mailbox. The calculator will also visually show how the costs compare with one another: green indicates the most affordable solution, yellow indicates the second affordable solution, and red indicates the most expensive solution

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Capital Expenses

\n
\n

Total Number of Disks

\n
\n

Disk Cost

\n
\n

Disk Cost / Mailbox

\n
\n

SCC Configuration (SAN) with VSS Backup Solution

\n
\n

1356

\n
\n

$778,920.00

\n
\n

$32.46

\n
\n

CCR Configuration (DAS) with VSS Backup Solution

\n
\n

1200

\n
\n

$176,880.00

\n
\n

$7.37

\n
\n

The third table displays the operational expenses for the SCC and CCR configurations. Specifically, the table outlines the yearly power and cooling costs for the disks (or solution), the production lifecycle power and cooling cost, and the production lifecycle power and cooling cost per mailbox.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Operational Expenses

\n
\n

Yearly Total Power-Cooling Cost

\n
\n

Production Lifecycle Power-Cooling Cost

\n
\n

Production Lifecycle Power-Cooling Cost / Mailbox

\n
\n

SCC Configuration (SAN) with VSS Backup Solution

\n
\n

$50,381.91

\n
\n

$151,145.74

\n
\n

$6.30

\n
\n

CCR Configuration (DAS) with VSS Backup Solution

\n
\n

$27,045.27

\n
\n

$81,135.82

\n
\n

$3.38

\n
\n

The fourth table displays the total expenses for the SCC and CCR configurations. Specifically, the table outlines the total disk (or solution) cost and production lifecycle power and cooling cost and those costs per mailbox.

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\n

Total Expenses

\n
\n

Total Disk & Power-Cooling Cost

\n
\n

Total Disk & Power-Cooling Cost / Mailbox

\n
\n

SCC Configuration (SAN) with VSS Backup Solution

\n
\n

$930,065.74

\n
\n

$38.75

\n
\n

CCR Configuration (DAS) with VSS Backup Solution

\n
\n

$258,015.82

\n
\n

$10.75

\n
\n

 

\n
\n

Download: Exchange 2007 Mailbox Server Storage Cost Calculator

\n
\n

Hopefully you will find this calculator invaluable in helping to analyze various disk configuration costs for Exchange 2007 mailbox servers. If you have any questions or suggestions, please email strgcalc@microsoft.com.

\n

Ross Smith IV

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this topic","repliesTurnedOff.BLOG":"Comments are turned off for this topic","repliesTurnedOff.TKB":"Comments are turned off for this topic","repliesTurnedOff.IDEA":"Comments are turned off for this topic","repliesTurnedOff.OCCASION":"Comments are turned off for this topic","infoText":"Stop poking me!"},"localOverride":false},"ModerationData:moderation_data:603244":{"__typename":"ModerationData","id":"moderation_data:603244","status":"APPROVED","rejectReason":null,"isReportedAbuse":false,"rejectUser":null,"rejectTime":null,"rejectActorType":null},"BlogReplyMessage:message:603244":{"__typename":"BlogReplyMessage","author":{"__ref":"User:user:-1"},"id":"message:603244","revisionNum":1,"uid":603244,"depth":1,"hasGivenKudo":false,"subscribed":false,"board":{"__ref":"Blog:board:Exchange"},"parent":{"__ref":"BlogTopicMessage:message:603239"},"conversation":{"__ref":"Conversation:conversation:603239"},"subject":"Re: Exchange Server 2007 Mailbox Server Storage Cost Calculator","moderationData":{"__ref":"ModerationData:moderation_data:603244"},"body":"There is also <a href=\"http://www.scriptlogic.com/products/message-stats\">message stats</a> that includes very powerful exchange reporting abilities. \n
\n
This tool gathers a set of different metrics like mailbox usage, message sizes and quotas, distribution lists, public folders and even more that can really help in exchange migration or future grow planning.\n
\n
I can also recommend to take a look at <a href=\"http://www.scriptlogic.com/Solutions/exchange-management-tools.asp\">scriptlogic's exchange management soluton</a> that includes 2 more bundled tools in addition to message stats.","body@stripHtml({\"removeProcessingText\":false,\"removeSpoilerMarkup\":false,\"removeTocMarkup\":false,\"truncateLength\":200})@stringLength":"215","kudosSumWeight":0,"repliesCount":0,"postTime":"2008-12-10T18:30:17.000-08:00","lastPublishTime":"2008-12-10T18:30:17.000-08:00","metrics":{"__typename":"MessageMetrics","views":257},"visibilityScope":"PUBLIC","placeholder":false,"originalMessageForPlaceholder":null,"entityType":"BLOG_REPLY","eventPath":"category:Exchange/category:products-services/category:communities/community:gxcuf89792board:Exchange/message:603239/message:603244","replies":{"__typename":"MessageConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"customFields":[],"attachments":{"__typename":"AttachmentConnection","edges":[],"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}}},"ModerationData:moderation_data:603243":{"__typename":"ModerationData","id":"moderation_data:603243","status":"APPROVED","rejectReason":null,"isReportedAbuse":false,"rejectUser":null,"rejectTime":null,"rejectActorType":null},"BlogReplyMessage:message:603243":{"__typename":"BlogReplyMessage","author":{"__ref":"User:user:-1"},"id":"message:603243","revisionNum":1,"uid":603243,"depth":1,"hasGivenKudo":false,"subscribed":false,"board":{"__ref":"Blog:board:Exchange"},"parent":{"__ref":"BlogTopicMessage:message:603239"},"conversation":{"__ref":"Conversation:conversation:603239"},"subject":"Re: Exchange Server 2007 Mailbox Server Storage Cost Calculator","moderationData":{"__ref":"ModerationData:moderation_data:603243"},"body":"A clone solution can meet the requirement, but it's cartainly not the only solution that will meet the requirement.  Hard coding clone assumptions into the tool is stacking the deck in a very unfair way.  I have to cry foul on that one.","body@stripHtml({\"removeProcessingText\":false,\"removeSpoilerMarkup\":false,\"removeTocMarkup\":false,\"truncateLength\":200})@stringLength":"208","kudosSumWeight":0,"repliesCount":0,"postTime":"2008-11-14T05:31:54.000-08:00","lastPublishTime":"2008-11-14T05:31:54.000-08:00","metrics":{"__typename":"MessageMetrics","views":257},"visibilityScope":"PUBLIC","placeholder":false,"originalMessageForPlaceholder":null,"entityType":"BLOG_REPLY","eventPath":"category:Exchange/category:products-services/category:communities/community:gxcuf89792board:Exchange/message:603239/message:603243","replies":{"__typename":"MessageConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"customFields":[],"attachments":{"__typename":"AttachmentConnection","edges":[],"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}}},"ModerationData:moderation_data:603242":{"__typename":"ModerationData","id":"moderation_data:603242","status":"APPROVED","rejectReason":null,"isReportedAbuse":false,"rejectUser":null,"rejectTime":null,"rejectActorType":null},"BlogReplyMessage:message:603242":{"__typename":"BlogReplyMessage","author":{"__ref":"User:user:-1"},"id":"message:603242","revisionNum":1,"uid":603242,"depth":1,"hasGivenKudo":false,"subscribed":false,"board":{"__ref":"Blog:board:Exchange"},"parent":{"__ref":"BlogTopicMessage:message:603239"},"conversation":{"__ref":"Conversation:conversation:603239"},"subject":"Re: Exchange Server 2007 Mailbox Server Storage Cost Calculator","moderationData":{"__ref":"ModerationData:moderation_data:603242"},"body":"XMSRE -


VSS Clone implementations ensure a fast recovery mechanism (close to LCR/CCR activation timeframes).  Not all snapshot solutions can guarantee that (e.g. DPM is a fast backup solution but is not necessarily, a fast restore solution), though there are some that

probably can.


I'm not sure where it was indicated that we do not support backupless infrastructures with Exchange and continuous replication because we certainly do.  You simply enable circular logging (for more information, please see

http://technet.microsoft.com/en-us/library/cc535020.aspx#LogTrunc).


But yes, you are correct that the calculator currently depicts an end-to-end solution for SCC and not for CCR by excluding a CCR backup solution.



However, the key point that I am making in the SCC vs. CCR comparison is that if you want to deploy large mailboxes (1GB or greater) then if you have database failure(s) you need a fast recovery mechanism.  For SCC, a VSS clone solution will meet that requirement;

and for CCR that is you copy.  In no way am I implying that for one solution you need backups and the other you do not.



Thanks for the feedback,


Ross

","body@stripHtml({\"removeProcessingText\":false,\"removeSpoilerMarkup\":false,\"removeTocMarkup\":false,\"truncateLength\":200})@stringLength":"208","kudosSumWeight":0,"repliesCount":0,"postTime":"2008-11-14T02:51:44.000-08:00","lastPublishTime":"2008-11-14T02:51:44.000-08:00","metrics":{"__typename":"MessageMetrics","views":257},"visibilityScope":"PUBLIC","placeholder":false,"originalMessageForPlaceholder":null,"entityType":"BLOG_REPLY","eventPath":"category:Exchange/category:products-services/category:communities/community:gxcuf89792board:Exchange/message:603239/message:603242","replies":{"__typename":"MessageConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"customFields":[],"attachments":{"__typename":"AttachmentConnection","edges":[],"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}}},"ModerationData:moderation_data:603241":{"__typename":"ModerationData","id":"moderation_data:603241","status":"APPROVED","rejectReason":null,"isReportedAbuse":false,"rejectUser":null,"rejectTime":null,"rejectActorType":null},"BlogReplyMessage:message:603241":{"__typename":"BlogReplyMessage","author":{"__ref":"User:user:-1"},"id":"message:603241","revisionNum":1,"uid":603241,"depth":1,"hasGivenKudo":false,"subscribed":false,"board":{"__ref":"Blog:board:Exchange"},"parent":{"__ref":"BlogTopicMessage:message:603239"},"conversation":{"__ref":"Conversation:conversation:603239"},"subject":"Re: Exchange Server 2007 Mailbox Server Storage Cost Calculator","moderationData":{"__ref":"ModerationData:moderation_data:603241"},"body":"I see two immediate problems with this tool:\n
\n
1.  It assumes clones.  Not all snapshots (example: MS Software VSS Provider based snapshots) are clones.\n
2.  It does not account for backups of the CCR active or passive nodes.  Running CCR in a backupless environment is not supported by MS for Exchange 2007.\n
\n
In this case you are inflating the size of SCC on SAN by 300% based on faulty assumptions, and undersizing CCR on DAS by a similar factor in that you neglect to include backups (which you must have to be supported).  ","body@stripHtml({\"removeProcessingText\":false,\"removeSpoilerMarkup\":false,\"removeTocMarkup\":false,\"truncateLength\":200})@stringLength":"218","kudosSumWeight":0,"repliesCount":0,"postTime":"2008-11-14T02:03:31.000-08:00","lastPublishTime":"2008-11-14T02:03:31.000-08:00","metrics":{"__typename":"MessageMetrics","views":257},"visibilityScope":"PUBLIC","placeholder":false,"originalMessageForPlaceholder":null,"entityType":"BLOG_REPLY","eventPath":"category:Exchange/category:products-services/category:communities/community:gxcuf89792board:Exchange/message:603239/message:603241","replies":{"__typename":"MessageConnection","pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null},"edges":[]},"customFields":[],"attachments":{"__typename":"AttachmentConnection","edges":[],"pageInfo":{"__typename":"PageInfo","hasNextPage":false,"endCursor":null,"hasPreviousPage":false,"startCursor":null}}},"ModerationData:moderation_data:603240":{"__typename":"ModerationData","id":"moderation_data:603240","status":"APPROVED","rejectReason":null,"isReportedAbuse":false,"rejectUser":null,"rejectTime":null,"rejectActorType":null},"BlogReplyMessage:message:603240":{"__typename":"BlogReplyMessage","author":{"__ref":"User:user:-1"},"id":"message:603240","revisionNum":1,"uid":603240,"depth":1,"hasGivenKudo":false,"subscribed":false,"board":{"__ref":"Blog:board:Exchange"},"parent":{"__ref":"BlogTopicMessage:message:603239"},"conversation":{"__ref":"Conversation:conversation:603239"},"subject":"Re: Exchange Server 2007 Mailbox Server Storage Cost Calculator","moderationData":{"__ref":"ModerationData:moderation_data:603240"},"body":"I have meet Ross Smith last week in Barcelona, you rocks ! your sessions were the best I have seen on Exchange :)\n
\n
Thank you.\n
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