Exchange 2013 CU23 Cannot Move Mailboxes

hyili 1

Hi,

I am having a Database Content Index issue with Exchange Mailbox Server. When I tried to move some mailboxes from one database to another, it won't start and I get some message from Get-MoveRequestStatistics shown below:

Resource reservation failed for 'DATABASE_NAME/MdbWrite' (CiAgeOfLastNotification(“DATABASE_NAME”)): load ratio 1.79769313486232E+308, load state 'Critical', metric 161625. This resource is currently unhealthy.

However, the ContentIndexStatus from Get-MailboxDatabaseCopyStatus is still in healthy state. Then, I found that the metric value in this message is the same as ContentIndexBacklog from Get-MailboxDatabaseCopyStatus. Most of my databases (70~80%) have a large value ContentIndexBacklog, when others remains 0.

I have tried reseeding the database, but that didn't help. Does anybody has any thoughts/experiences about this situation?

Kael Yao-MSFT 37,486 Reputation points Microsoft Vendor

2021-03-29T07:15:57.297+00:00

Hi, @hyili

Was the server under heavy load when you tried to move the mailboxes?
To my knowledge it can be the cause of the problem.

To confirm it, please monitor the resource usage of the server and check if there are some error or warning events generated in the application log in event viewer.

You may also try moving the mailbox to another database on the same server.
And see if it works or fails with the same error.

If the response is helpful, please click "Accept Answer" and upvote it.
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hyili 1 Reputation point

2021-03-31T08:05:47.55+00:00

Thanks for reply, @Kael Yao-MSFT
I had tried both moving in/out mailboxes to/from databases having such state, and still be the same. I also checked that the server was not busy at that time. However, after waiting for several days, all status are now back to normal.
Another thing is, 3 days before this situation, I reduced the retention period of mailbox audit log from 180 days to 90 days. I think there may be some relations between the situation and server configuration change.
Kael Yao-MSFT 37,486 Reputation points Microsoft Vendor

2021-04-06T08:48:15.78+00:00

Thanks for the update!

Since the mailbox audit log is stored in the Recoverable Items folder of a mailbox,
Did you change the AuditLogAgeLimit parameter for all the mailboxes in the specific databases?

If so, I suppose the Managed Folder Assistant may be busy with removing the expired logs from the databases.
And it affects the mailbox move request.
Kael Yao-MSFT 37,486 Reputation points Microsoft Vendor

2021-04-12T07:57:03.077+00:00

Hi, @hyili

I am writing here to confirm with you how thing going now?
Did you still have the problem?
hyili 1 Reputation point

2021-04-13T02:11:48.897+00:00

I'm done with it now. I did change the AuditLogAgeLimit parameter of ALL mailboxes in my environment. It took days to finish the job...
Thanks for the information!
Kael Yao-MSFT 37,486 Reputation points Microsoft Vendor

2021-04-13T08:01:30.297+00:00

Glad to hear the issue has gone :)