Can Backup Pro be used to back up Microsoft Exchange?
Yes, Backup Pro can back up Microsoft Exchange 2003, 2007 and 2010. Older versions of Exchange are no longer supported by Backup Pro.
How does the backup work?
Backup Pro uses plug-ins to facilitate Exchange backups. These fall into two categories by purpose: full recovery and item/mailbox recovery. The Exchange server should always be backed using a full recovery plug-in, with an item/mailbox plug-in as an optional extra.
Note: It is not possible to recover an Exchange environment using an item/mailbox plug-in only.
What are the options for full recovery of Exchange and how should I choose between these?
The two full recovery plug-ins are the Exchange plug-in and the VSS plug-in.
The Exchange plug-in calls an Exchange API and writes the Exchange database out to disk (a dump), which is then added to the backup selection and sent to the Storage Platform. The dumped copy of Exchange takes up space on the local disk but can be used for recovering the Exchange database. The Exchange plug-in operates with Exchange 2003 and Exchange 2007. Exchange 2010 is not supported.
The VSS plug-in uses Microsoft's VSS technology to snapshot the running Exchange databases. It does not write a dump copy to the local disk, so takes up less disk space, but does not leave a database copy that can be restored from locally. The VSS plug-in operates with Exchange 2003, 2007 and 2010.
The VSS snapshot process is considerably quicker than the dump process of the Exchange plug-in, so is preferable for larger databases.
Note: The VSS plug-in is the only supported Exchange database backup method in Backup Pro V7.0 and above.
V7.0 introduces Streaming Backup, which removes the need for local temporary disk space, and faster compression techniques.
Why would I want to restore at item or mailbox level?
Although it is possible to recover the individual items and mailboxes using the full recovery plug-ins (either via a Recovery Storage Group or database as appropriate), item and mailbox level recovery allows the user to restore the items directly in the most timely fashion.
Are Database Availability Groups supported for Exchange 2010?
Yes, please see the Plug-ins User Manual for details.
Exchange uses transaction logs. Does Attix5 truncate these?
If using the Exchange or VSS plug-ins, yes it does. The VSS plug-in only truncates logs if set to Full. It will not truncate if Copy is set. The Exchange plug-in truncates the logs when the dump process completes. The VSS plug-in truncates the logs when the transfer completes.
Are there any other options that I should set when backing up Microsoft Exchange?
Unless your database is very small, or your bandwidth very constrained, Delta Blocking should be enabled for Exchange database files (either by size or *.edb extension). Delta Blocking will send larger patches, but processes changes approximately seven times faster than Binary Patching. The Large File Count options described in the FAQ Article 498 may also be of use as they prevent Exchange transaction logs being added to the cache and then purged on the next backup.
Note: In Backup Pro V7.x, enable the Streaming Backup option to remove the need for local temporary disk space.
Old Article ID: 177
Posted: 16 Jul, 2012.