Exchange 2016 Automatically dismount and mount databases

Question

Exchange 2016 Automatically dismount and mount databases

超邓 212

Recently, it was found that the Exchange server automatically unloaded the database and mounted the database, and there is currently no information in the system log, and the system log found that there is an action to mount.

Aholic Liang-MSFT 13,876 Reputation points Microsoft External Staff

2023-08-22T08:06:23.5666667+00:00

Hi @ 超邓,

To better confirm the problem, I would like to know the following:

How many servers are there in your organization? Is it configured as a DAG? Whether there are related errors in the Application log in Event Viewer. Did you see the Information Storage service automatically restart at service.msc? If not, please specify.

Additionally, based on my testing, it is normal to be prompted to restart this service when creating a new mailbox database.

I recommend that you check the Application log for other issues that affect usage.
超邓 212 Reputation points

2023-08-22T09:06:22.1433333+00:00

I have 9 mailboxes in my organization, 9 mailboxes create DAGs, and each database is configured with three copies. Now that I have created a new stand-alone database, I will automatically unload the database without configuring a replica。
超邓 212 Reputation points

2023-08-22T09:07:09.37+00:00

The application log found no error messages, only logs with database mounts.
Aholic Liang-MSFT 13,876 Reputation points Microsoft External Staff

2023-08-25T08:20:51.82+00:00

Hi,

Just want to determine what version of Exchange Server is running in your current environment?Standard or Enterprise?

Also, how many databases are currently mounted?
Aholic Liang-MSFT 13,876 Reputation points Microsoft External Staff

2023-08-29T09:07:03.25+00:00

Hi, It has been a few days and I am checking in to see how things are going on with this issue.

1 answer

Your answer

Aholic Liang-MSFT 13,876 Reputation points Microsoft External Staff

2023-08-22T08:06:23.5666667+00:00

Hi @ 超邓,

To better confirm the problem, I would like to know the following:

How many servers are there in your organization? Is it configured as a DAG? Whether there are related errors in the Application log in Event Viewer. Did you see the Information Storage service automatically restart at service.msc? If not, please specify.

Additionally, based on my testing, it is normal to be prompted to restart this service when creating a new mailbox database.

I recommend that you check the Application log for other issues that affect usage.
超邓 212 Reputation points

2023-08-22T09:06:22.1433333+00:00

I have 9 mailboxes in my organization, 9 mailboxes create DAGs, and each database is configured with three copies. Now that I have created a new stand-alone database, I will automatically unload the database without configuring a replica。
超邓 212 Reputation points

2023-08-22T09:07:09.37+00:00

The application log found no error messages, only logs with database mounts.
Aholic Liang-MSFT 13,876 Reputation points Microsoft External Staff

2023-08-25T08:20:51.82+00:00

Hi,

Just want to determine what version of Exchange Server is running in your current environment?Standard or Enterprise?

Also, how many databases are currently mounted?
Aholic Liang-MSFT 13,876 Reputation points Microsoft External Staff

2023-08-29T09:07:03.25+00:00

Hi, It has been a few days and I am checking in to see how things are going on with this issue.

Answer 1

Amit Singh 5,231

You can try the following steps to troubleshoot the issue:

Check the Exchange Server event logs for any errors or warnings for the database.
Use the Exchange Server diagnostic tools to scan the database.
Look for ExchangeStoreDb events.
Restore the database from a backup.
Just create a new database, move all the mailboxes (including arbitration) to the new database, and drop the original.

Also check this article for more insight - https://community.spiceworks.com/how_to/147965-repair-exchange-after-unexpected-shutdown

If you need help troubleshooting the issue, you may need to contact Microsoft Support for assistance.

Please Note: Since the web sites are not hosted by Microsoft, the links may change without notice. Microsoft does not guarantee the accuracy of this information.

超邓 212

HI Amit Singh,

 I also automatically uninstalled through the newly created database, I found that the information storage service will automatically restart, I don't know what caused it, and it will be automatically restarted after a while...

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Exchange 2016 Automatically dismount and mount databases

1 answer

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