Error code : 1542[ An existing snapshot is no longer valid and cannot be mounted for subsequent operations]
In my environment, particularly in exchange servers with active and passive nodes..Backup was failing with error code 1542 after upgrading the client from 6.5.5 to 220.127.116.11. We need to upgrade the backup software still to 12 or more servers in our list. If anybody can assist why the job is failing after upgrade and how to solve it.
Temporary solution :
Rebooting passive exchange server in the cluster make the backup get successful.And changing the below attributes working mostly fine with the backups but still we need to upgrade other 12 servers without rebooting since it runs 24*7.
Microsoft Exchange server Attributes :
Database backup source : Passive copy only...
Thanks in Advance!!!!