Hi,
I am using exchange 2010 sp 2, RU 3
On my mailbox server found this error and because of that store is dismounted and failover to different mailbox server
There seems to be a database operation which is already in progress. Dismount operation will be delayed until the previous operation is complete (databaseGuid='41f5e502-f4cb-4377-bb14-352c6826576e', error='MapiExceptionDismountInProgress: Unable to unmount database. (Hr=0x80004005, ec=2613)
')
Event ID 161: Database action
Regards Sushantgharpure