Hello,
I have setup Failover cluster on SQL Server 2014 which working fine. Then I implement backup strategy. It is also working fine.
But after failover only last differential backup (which is occurred at 12 AM) started failing. From below query I find out that DB snapshot is occurred on 8:30 PM everyday on this node.
select backup_finish_date,is_snapshot,database_name from msdb.dbo.backupset where is_snapshot = 1
We don't implement any snapshot for database.
After failback it is working fine again.Then again I execute above query; And I am surprised now DB snapshot is not happening.
Can you please explain why the differential backup is failed from only one node and not from second? If snapshot is happening how can I get all information regarding snapshot? (e.g. where is it store? from where is it taken? why snapshot happening from only one node if I have implemented failover clustering? )
Full DB Backup: everyday 2AM
Differential Backup: Every 8 hour between 8:00 AM and 7:59:59 AM