Move Exchange database to another drive

 Thank to: https://www.alitajran.com/

After renaming the Exchange database, we like to move the Exchange database to another drive. Good to know is that we can only move the Exchange database path to another drive with PowerShell. It’s not possible to do it in the Exchange Admin Center. In this article, you will learn how to move the Exchange database to another drive.

Table of contents

Before moving Exchange mailbox database to another drive

Before moving the database to another drive, we recommend configuring the volumes as ReFS in Exchange. After that, move the database and logs to the created ReFS volumes.

  • Standalone Exchange Server
    If the Exchange Server is a standalone server. Configure two separate disks. One disk is for the database, and the other disk is for the database logs.
  • Exchange Server DAG
    If the Exchange Server is going to be a member of a DAG, configuring two disks is not required. We can have the database and logs on the same disk or separately.

Note: For recoverability, move the database (.edb) file and logs from the same database to different volumes backed by different physical disks.

Read more: Exchange database best practices »

Get Exchange mailbox database path

Run Exchange Management Shell as administrator. Let’s get the Exchange mailbox database path and run the Get-MailboxDatabase cmdlet.

[PS] C:\>Get-MailboxDatabase | Format-List Name, EdbFilePath, LogFolderPath


Name          : DB01
EdbFilePath   : C:\Program Files\Microsoft\Exchange Server\V15\Mailbox\Mailbox Database 1237333779\Mailbox Database 1237333779.edb
LogFolderPath : C:\Program Files\Microsoft\Exchange Server\V15\Mailbox\Mailbox Database 1237333779

We already did rename the mailbox database name to DB01. That’s because we recommend having an easy-to-read mailbox database naming convention.

However, the .edb file (database) and log folder still have the unique generated name. Therefore, we will configure the name when we move both the database and log folder to another drive.

Move Exchange mailbox database to another drive

We will place the database file and logs from the same mailbox database to different volumes. The volumes are configured on both different physical disks. The (E:) drive is the database disk, and the (F:) drive is the logs disk.

Move Exchange database to another drive before move

Run the Move-DatabasePath cmdlet and fill in the values for each parameter:

  • EdbFilePath: Specifies a new file path for the database. All current database files are moved to this location.
  • LogFolderPath: Specifies the folder where log files are stored.

After running the command, confirm both times with Y and press Enter.

Important: The database will dismount, and the files will move to the new location. After the files finish moving, the database is mounted. Everything will happen automatically. The time of the operation depends on how much data there is to move. The users configured in the mailbox database will have no access to their email. It’s recommended to do this after business hours.

[PS] C:\>Move-DatabasePath "DB01" -EdbFilePath "E:\DB01\DB01.edb" -LogFolderPath "F:\DB01"

Confirm
Are you sure you want to perform this action?
Moving database path "DB01".
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [?] Help (default is "Y"): Y

Confirm
To perform the move operation, database "DB01" must be temporarily dismounted, which will make it inaccessible to all users. Do you want to continue?
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [?] Help (default is "Y"): Y

Let’s check if the folders are created, and if the files have moved to each disk.

Results after moving Exchange database to another drive

The database file is renamed and shown in the new disk volume, including the content index folder. The content index files are located in the same path as the database EDB file, in a sub-folder named with a GUID.

Move Exchange database to another drive after move database volume

The database logs are moved to the new disk volume.

Move Exchange database to another drive after move logs volume

To clean up the old database folder, browse the old database path. Then, right-click the folder and click delete.

Delete old database folder

If you get a warning that the folder or file is in use, restart the following services in PowerShell. After that, you can delete the folder.

[PS] C:\>Get-Service -Name "HostControllerService","MSExchangeFastSearch" | Restart-Service
WARNING: Waiting for service 'Microsoft Exchange Search Host Controller (HostControllerService)' to stop...
WARNING: Waiting for service 'Microsoft Exchange Search Host Controller (HostControllerService)' to stop...
WARNING: Waiting for service 'Microsoft Exchange Search (MSExchangeFastSearch)' to stop...

Verify the results with PowerShell.

[PS] C:\>Get-MailboxDatabase | Format-List Name, EdbFilePath, LogFolderPath


Name          : DB01
EdbFilePath   : E:\DB01\DB01.edb
LogFolderPath : F:\DB01

That’s it!

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