Microsoft KB Archive/294741

= XADM: Error Attaching to Device When You Try to Back Up Exchange 2000 Store =

Article ID: 294741

Article Last Modified on 2/28/2007

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APPLIES TO


 * Microsoft Exchange 2000 Server Standard Edition

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This article was previously published under Q294741



SYMPTOMS
When you attempt to start a backup of an Exchange 2000 Store, you receive the following error message:

Error attaching to device ServerName\Microsoft Information Store\First Storage Group.

You may see the following error in the application event log:

Event Type: Error

Event Source: NTBackup

Event Category: None

Event ID: 8012

Description:

The 'Microsoft Information Store' returned 'An incremental backup cannot be performed when circular logging is enabled. ' from a call to 'HrESEBackupSetup' additional data '-'



CAUSE
An incremental or differential backup cannot be performed on a storage group with circular logging enabled.



RESOLUTION
Verify that the backup type is not set to differential or incremental.
 * 1) In Microsoft Windows NT Backup, click the Start Backup button to begin the backup.
 * 2) Click Advanced.
 * 3) Set the backup type to something other than incremental or differential.

To verify whether the storage group that is being backed up is using circular logging, follow these steps:
 * 1) In Exchange System Manager, expand Under First Administrative Group, or Administrative Groups to the server that you are backing up.
 * 2) Expand the server and select the storage group that you are backing up.
 * 3) Right-click and select properties for the storage group. On the General tab, if the Enable Circular Logging check box is selected, circular logging is enabled. If the Enable Circular Logging check box is not selected, circular logging is disabled.



MORE INFORMATION
For additional information about circular logging, click the article number below to view the article in the Microsoft Knowledge Base:

258470 XADM: How to Modify the Circular Logging Setting

Additional query words: exch2kp2w

Keywords: kberrmsg kbprb KB294741

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