Exchange Server 2003 does not include the Performance
Optimizer program (Perfwiz.exe) that is included with previous versions of
Exchange Server. This article describes how to move log files or database files
in Exchange Server 2003.
If you want to move log files or database files to another
drive, use the following procedures.
To move log files
- Start Exchange System Manager.
- Click Administrative Groups.
Note If Administrative Groups does not appear, it may
not be turned on. To turn on Administrative Groups,
right-click Exchange Organization in Exchange System Manager,
and then click Properties. Click to select the Display
Administrative Groups check box.
- Locate the storage group where you want to change log file
paths, right-click the storage group, and then click
- Click the General tab, click the Browse button next to the Transaction log location box, and then specify the new drive or folder location for the
To move databases
- Start Exchange System Manager.
- Open the administrative group that contains the database
that you want to change.
- Under Storage Group, right-click the
mailbox store or the public folder store that you want to change, and then
- Click the Database tab.
- Next to the database that you want to change, click Browse, and then specify a new drive or folder location for the files.
- With the databases, you can decide to move the Exchange
Database (.edb file), the Exchange Streaming Database (.stm file), or
- If the databases are still mounted, you receive the
Click Yes to dismount the database automatically and move the location.
You are about to perform the
- change Exchange database location
perform the requested operation(s), the store must be temporarily dismounted
which will make it inaccessible to any user.
Do you want to continue?
- When you finish moving the databases, remount the databases
You can move the log files and database files to any folder
that you want to create. When you move logs and database files, you may want to
create the Exchsrvr\Mdbdata file structure for consistency reasons, but you are
not obligated to do so.
You must grant the following default
permissions to the new Mdbdata folder that contains the log files and database
- Administrators: Full Control
- Authenticated Users: Read and Execute, List Folder
- Creator Owner: None
- Server Operators: Modify, Read and Execute, List Folder
Contents, Read, Write
- System: Full Control
Only assign permissions to the Server Operators group if the
Exchange server is a domain controller. Otherwise, assign permissions to the
Power Users group. Only domain controllers should have permissions to the
built-in Server Operators group. Stand-alone and member servers should have
permissions to the built-in Power Users group.
You may also have to
grant the following permissions to the root drive that contains the new Mdbdata
During the process of moving log files and database files, your
store is temporarily dismounted. Because the store is temporarily dismounted,
it is inaccessible to your users until the process is completed. Moving log
files or database files invalidates all existing incremental and differential
backups; therefore, make a full backup after these changes.
not delete or rename the Old MDBdata Folder path after you move the Exchange
database. If you want to delete the old MDBdata folder, make sure that the
following working directory parameter in the registry points to the new
Value name: Working Directory
Value type: REG_SZ
Value data: C:\Program Files\Exchsrvr\Mdbdata
information, click the following article number to view the article in the
Microsoft Knowledge Base:
Messages that have attachments are not delivered as expected, and Event ID 12003 and 327 messages are logged in Exchange 2000 Server and in Exchange Server 2003
Do not move databases to the root of a drive. Instead, move databases at least one subfolder down from the root drive. For example, do not use C:\ as the path of the database or log files. Instead, you could use the C:\Subfolder path. In an organization that uses Exchange 2003 and Exchange 2007, the 2007 management tools will flag database or log files that are the root of a drive as an error. For more information, visit the following Microsoft Web site:
Article ID: 821915 - Last Review: December 13, 2008 - Revision: 3.0
- Microsoft Exchange Server 2003 Enterprise Edition
- Microsoft Exchange Server 2003 Standard Edition