Having an Exchange Information Store backup is an important part of a disaster-recovery plan for any server hosting Exchange mail services. An Exchange Information Store backup allows you to restore an entire Exchange database back into production as well as to a recovery group for the purpose of restoring individual mailboxes. This guide will show you how to set up an Exchange Information Store backup set.
Log into the management portal and go to the computer account you want to add the backup set to.
Click on the Backup tab and then hit the Add Backup Set button.
In the Create Backup Set wizard that opens, pick Exchange Information Store from the list of backup set types, enter a name for the backup set, and choose a backup destination. Then click Next.
On the Select page you will pick which mailbox database you want to back up with this backup set; you can only back up one database per backup set. Click Next after you've picked the database you want to back up.
Note: You may see a warning about circular logging if it is enabled on the database you choose. If you have circular logging enabled, the backup set will conduct mailbox database backups (fulls) each time it runs.
On the next page, the Schedule page, set the schedule for the backup set by choosing when the backup set runs and whether the backup set runs an incremental or full.
The Exchange Information Store backups will need to run a full backup at least one a week. Keep in mind the full backups are not true fulls; incremental backups are transaction log backups while full backups are mailbox database backups. More information about that distinction is here.
When you are done, hit Next.
At the Settings page, you will set the archiving rules and temporary folder location. Click Next when done.
Archiving Rules - In terms of versions, for an Exchange Information Store backup set, each mailbox database backup (full) is considered a version while backups of the transaction logs (incrementals) do not count as versions.
Temporary Folder - Here is where the backup set will store temporary files for this backup set only. As a minimum, you will need temporary space equal to at least the size of the database.
On the final page, you will be given a summary of the backup set you just configured. If everything looks good, click Create to finalize the backup set creation.