It's been a while since we announced an update to Exchange 2007 Mailbox Server Role Storage Requirements Calculator.
Yesterday we have updated the calculator to version 13.0. Updates:
We have...
Updated Jul 01, 2019
Version 2.0
Blog Post
2 MIN READ
Exchange 2007 Mailbox Server Role Storage Requirements Calculator updated to v 13.0
Hi Sean,
When sizing the restore LUN, we essentially use the following rules:
If LUN Architecture = 2 LUNs / SG
- We size the restore LUN using ((DB_Size_With_Overhead + Log_Size_With_Overhead)) * (IF(#_SG<=7, 1, #_SG/7))
where #_SG = number of storage groups
Since you have up to 50 storage groups, there is a risk that multiple SG failures could occur, so we want to size the restore LUN to ensure that you can survive multiple failures.
If LUN Architecture = 2 LUNs / Backup Set
- We size the restore LUN using ((DB_Size_With_Overhead + Log_Size_With_Overhead) * #_SG_In_BackupSet)
where #_SG_in_BackupSet = number of storage groups contained within a single LUN
Basically with this formula we want to ensure you can restore all the storage groups should use lose an entire LUN set.
Hope that helps,
Ross
When sizing the restore LUN, we essentially use the following rules:
If LUN Architecture = 2 LUNs / SG
- We size the restore LUN using ((DB_Size_With_Overhead + Log_Size_With_Overhead)) * (IF(#_SG<=7, 1, #_SG/7))
where #_SG = number of storage groups
Since you have up to 50 storage groups, there is a risk that multiple SG failures could occur, so we want to size the restore LUN to ensure that you can survive multiple failures.
If LUN Architecture = 2 LUNs / Backup Set
- We size the restore LUN using ((DB_Size_With_Overhead + Log_Size_With_Overhead) * #_SG_In_BackupSet)
where #_SG_in_BackupSet = number of storage groups contained within a single LUN
Basically with this formula we want to ensure you can restore all the storage groups should use lose an entire LUN set.
Hope that helps,
Ross