Topic Last Modified: 2005-11-18
The Microsoft® Exchange Server Analyzer Tool queries the Active Directory® directory service to determine the value for the msExchEDBFile attribute of each mailbox store object. This attribute specifies the location of the database files used by this mailbox store.
The Exchange Server Analyzer also queries Active Directory to determine the count of the values listed in the homeMDBBL attribute of each mailbox store on this server. The count of this attribute represents the number of mailboxes in the mailbox store. The Exchange Server Analyzer can then calculate the total number of mailboxes managed by the server.
If the Exchange Server Analyzer finds that the msExchEDBFile attribute starts with \\ on an Exchange server with more than 50 mailboxes, an error is displayed.
This error indicates that the database files for a mailbox store are being stored on a network share. If the msExchEDBFile attribute starts with \\, it indicates that the log file path uses a Universal Naming Convention (UNC) path. This is not a recommended practice because interruptions in network connectivity could cause database errors, resulting in lost data or corrupted databases. It is recommended that you correct this problem as soon as possible.
To move the database files to a new drive
In Exchange System Manager, expand the Exchange server object on which the store resides, expand the appropriate storage group container, right-click the mailbox store object that you want, and then click Properties.
Specify new file locations on the Database tab of the Properties dialog box.
For more information about Exchange Server database files, see the following topics:
- "Managing Mailbox Stores and Public Folder Stores" in the
Exchange Server 2003 Administration Guide (http://go.microsoft.com/fwlink/?LinkId=47617)
- "Understanding the Exchange Server 2003 Store" in Working
with the Exchange Server 2003 Store (http://go.microsoft.com/fwlink/?LinkId=47595)
For more information about using Exchange Server with network drives, see the following Microsoft Knowledge Base articles:
- 328879, "Using Exchange Server with Storage Attached Network
and network-attached storage devices" (http://go.microsoft.com/fwlink/?LinkId=3052&kbid=328879)
- 839687, "Microsoft support policy on the use of
network-attached storage devices with Exchange Server 2003"
- 317173, "Exchange Server and network-attached storage"
- 317172, "Exchange Server 5.5 and network-attached storage"