Get-mailboxdatabasecopystatus -identity DBNAME | fl gives errors "The Microsoft Exchange Replication service encountered an error while attempting to start a replication instance for". DB is mounted and the DB copies are in healthy status.

Question

We are getting a SCOM alert " Database copy isn''''t keeping up with the changes on the active database copy and has failed."
When we go to the mailbox server and check we found all the Mailbox DB's are mounted properly and their copies are in healthy state. Further digging to this problem we found that there are no critical events to this DB in the eventviewer.
When we runt he get-mailboxdatabasecopystatus -identity DBNAME | Fl then in the ErrorMessage section we get error "The Microsoft Exchange Replication service encountered an error while attempting to start a replication instance for . If the copy doesn't
recover automatically, administrator intervention may be necessary. Error: The directory is not empty."
ErrorEventID : 4126
In the event viewer we get a Information event 4114 saying the DB redundancy health check passed and in the details section we get the same error message mentioned above.
Also we observed that the "MSExchange Replication" counter "Failed" is set to 1 for this perticular DB but is is set to 0 for the other DB's. Tried restarting the MSEXChange replication service but still the "Failed" counter
is 1 and the SCOM alert is still active.
The version is Exchange 2010 SP3 UR5
Any clues???

Answer 1

Hi,
From your description, this issue only affect one mailbox datatabase.
Please use the Update-MailboxDatabaseCopy command to check result.
If it doesn't work, please dismount your active database copy and check if this is Clean Shutdown, if it's dirty shutdown, please bring to clean shutdown and mount this database copy. Then run the Update-MailboxDatabaseCopy command again to check result.
Best regards,
Belinda Ma
TechNet Community Support