You can include each Exchange storage group in one backup policy. Or you can choose to include a storage group in more than one policy. In the latter case, ensure that enough snapshot volumes exist to satisfy the value for each policy that contains the storage group.
When you configure an
Exchange snapshot backup policy, the only valid directives are:
Microsoft Exchange Database Availability
Groups:\
or Microsoft Information
Store:\
(a database or storage group can be appended) .
More Information
Configuring an Exchange snapshot policy with Instant Recovery
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