I was curious to know if it is ok to defrag the system disk on exchange 2013? The mailbox databases and logs are stored on separate disks.

Run the check. Does it say you need to defrag?

Why would you like to defrag>

If you really need it then activate the DBs to the different server and put this server in the maintenance

It was recommended to defrag because the fragmentation is at 42 percent on the C drive. This is a single multirole server for a small company. We do not have any backup exchange servers.

Yes you can defrag the C drive on the Exchange server. A few things though...

- You need to make sure that Logs, Databases and Que file is not on the C drive.

- You stated the Logs and Databases are not on the C drive what about Que file?

- If you have the Que file on the C drive then stop all of the Exchange services, the defrag the C drive. Start the Exchange Services back up after the defrag is completed.

- You can also move the Que file to another disk and then defrag the C drive

Will.

• Edited by Will Szymkowski- Saturday, August 08, 2015 11:30 PM

Yes you can defrag the C drive on the Exchange server. A few things though...

- You need to make sure that Logs, Databases and Que file is not on the C drive.

- You stated the Logs and Databases are not on the C drive what about Que file?

- If you have the Que file on the C drive then stop all of the Exchange services, the defrag the C drive. Start the Exchange Services back up after the defrag is completed.

- You can also move the Que file to another disk and then defrag the C drive

Will.

• Edited by Will Szymkowski- Saturday, August 08, 2015 11:30 PM
• Proposed as answer by Allen_WangJFMicrosoft contingent staff, Moderator 4 hours 42 minutes ago

The mail.que file is located on the C drive. Can I just dismount the mailbox databases instead of stopping all exchange services prior to the defrag?

Thank you,

Jose

If the database are dismounted why not just stop the Exchange services as well? I would do this to ensure nothing Exchange related is affected.

Will.

Ok, thank you for your help Will.

Jose

I would suggest to move the mail.que to different drive.