Diff backup fails as another product took last 'backup'
I have a virtual setup where Exchange 2010 is on a Windows 2008 VM. I'm running BExec 2010 R2 on another 2008 VM.
VMware's Data Recovery module takes an image snapshot of the Exchange server every day and stores to a NAS drive. As well as this Veeam Replication takes another image overnight and sends that offsite for DR purposes.
When all this was put in place BExec became largely redundant however I wanted to keep the old regime of taking daily Diffs of Exchange and other data plus a Full backup of Exchange and other data carried out on a Sunday. I'm just over cautious I guess!
The Data-only BExec jobs run with no problem but the Exchange-only Diff backup moans that the last full backup wasn't done by BExec, even though both Exchange and Data have been snapshot'ed by the same replication/image products. The actual error I get is below -
The Backup Exec Agent for Microsoft Exchange was not used to create the last full backup of this database. You must use the Exchange Agent to run a full backup before you run a differential or incremental backup.
Why is Data-only backup OK co-existing with DRM and Veeam but Exchange complains? Is there anything I can change in the Exchange job(s) that will overcome this or is this just a dumb idea? There's nothing in either the DRM or Veeam Replication jobs that explicitly act upon Exchange - they both just take server images.
Can a kind expert please enlighten me?