Many of you have heard about the changes we've made in Exchange 2010 that combine to give you the ability to use less expensive storage and deploy large mailboxes. There have been many discussion...
Updated Jul 01, 2019
Version 2.0
Blog Post
Hi Martijn,
If you go back and look at why you need backups - you need them to protect against software and hardware failures, and possibly datacenter failures -> covered by mailbox resiliency. You also need backups to recover accidentally or maliciously deleted email -> covered by single item recovery. You may also need backups to protect against administrative error (e.g., mailbox deletions) or logical corruption -> in these cases you need a point-in-time backup which could be a lagged database copy.
MSIT utilizes the native data protection features of Exchange, namely, mailbox resiliency (4 HA copies) and single item recovery (30 days) for its backup and recovery infrastructure.
The reasoning is simply how we do business and the need to reduce costs in the infrastructure. Back in Exchange 2003 we leverated a disk-to-disk-to-tape backup architecture and maintained the tape backups for 14 days. In Exchange 2007 we moved away from tapes as we found they were a) costly and b) unreliable; instead we leveraged a disk-to-disk backup architecture and maintained those backups for 14 days. The main reason for maintaining backups was single item recovery. Thus, with Exchange 2010, we have single item recovery built-in and we have multiple copies.
Hope this helps,
Ross
If you go back and look at why you need backups - you need them to protect against software and hardware failures, and possibly datacenter failures -> covered by mailbox resiliency. You also need backups to recover accidentally or maliciously deleted email -> covered by single item recovery. You may also need backups to protect against administrative error (e.g., mailbox deletions) or logical corruption -> in these cases you need a point-in-time backup which could be a lagged database copy.
MSIT utilizes the native data protection features of Exchange, namely, mailbox resiliency (4 HA copies) and single item recovery (30 days) for its backup and recovery infrastructure.
The reasoning is simply how we do business and the need to reduce costs in the infrastructure. Back in Exchange 2003 we leverated a disk-to-disk-to-tape backup architecture and maintained the tape backups for 14 days. In Exchange 2007 we moved away from tapes as we found they were a) costly and b) unreliable; instead we leveraged a disk-to-disk backup architecture and maintained those backups for 14 days. The main reason for maintaining backups was single item recovery. Thus, with Exchange 2010, we have single item recovery built-in and we have multiple copies.
Hope this helps,
Ross