You can record the critical storage configuration information about your cluster's shared disks to a text file using the Dump Config (DumpCfg.exe) command-line tool. The information contained in the text file is referred to as the disk signature.
DumpCfg.exe is located in Microsoft Windows 2000 Server Resource Kit.

To record the disk signature of a cluster's shared disk

1. On the node from which you want to record the cluster's shared disk information, install the Microsoft Windows 2000 Server Resource Kit and the Microsoft Windows 2000 Server Resource Kit supplements.
2. Use Cluster Administrator to ensure that the node you are using to record the disk signature is the owner all of the shared disk resources for the cluster.
3. Open a command prompt on the node that owns all of the shared disk resources for the cluster. To open a command prompt,
   1. Click Start, point to Programs, point to Accessories,
   2. Click Command Prompt.
   3. At the command prompt, type DumpCfg.exe > C:\dumpfile.txt, and then press ENTER.
4. Start Windows Explorer. To start Windows Explorer,
   1. Click Start, point to Programs, point to Accessories, and then
   2. Click Windows Explorer.
   3. Go to drive C and locate the newly created dumpfile.txt that contains the newly created Dumpfile.txt file.
   4. Double-click the Dumpfile.txt file to open it in Notepad.

   In addition to other information, Dumpfile.txt should contain the disk signatures and volume information for each of the cluster disks similar to the following format:

   --------------------------- Disk Number: 0
   Signature: D1C7750B
   144 Disaster Recovery for Microsoft Exchange 2000 Server
   Volume #1:
   Volume name: \\?\Volume{5bb07c00-44c0-11d5-9743-806d6172696f}\
   Drive letter: G:
   Volume Label: Quorum
   File System: NTFS
   Boot\Boot.ini\System Volume:
   Volume Type: Simple Volume \ Logical Drive
   Number of members: 1
   Member #1: Partition - Disk: 0, StartingOffset: 8257536 bytes, Length: 17500 MB
   ---------------------------

5. Copy the dumpfile.txt file to a safe location, such as a network share containing the software updates for this node. For more information about how to store server information, see Software and Firmware Updates.

The information in this article applies to:

• Microsoft Exchange Server 2003 Enterprise Edition
• Microsoft Exchange Server 2003 Standard Edition
• Microsoft Windows Small Business Server 2003, Premium Edition
• Microsoft Windows Small Business Server 2003, Standard Edition
• Microsoft Exchange 2000 Server