Event ID 755 — Backup Service Availability

Applies To: Windows Server 2008

For Windows Server Backup to be able to perform backups and recoveries, the Block Level Backup Engine service (wbengine) must be able to start and the global or local catalogs must not be corrupted. Wbengine enables Windows Server Backup to perform block-level backup and recovery operations. The global catalog is a file that Windows Server Backup uses to store the details about all of your backups (what volumes are backed up and where the backups are located). The local catalog is a file that Windows Server Backup creates to store details about the backups that are stored on a specific backup destination.

Event Details

Resolve

Review Service Control Manager events in Event Viewer

Review Service Control Manager events for Windows Server Backup in Event Viewer in the Windows System event log.

To perform this procedure, you must have membership in Administrators, or you must have been delegated the appropriate authority.

To view the Windows Server Backup events in the Windows System event log:

1. Open Event Viewer. Click Start, click Administrative Tools, and then click Event Viewer.
2. In the left pane, expand Windows Logs, and then click System.
3. To create a filtered view of just the Service Control Manager events, click Action, click Create Custom View, and in the Event sources drop-down list, select Service Control Manager Eventlog Provider, and then click OK.
4. In Save Filter to Custom View, provide a name and description.
5. In the left pane, expand Custom View, right-click the name of the custom view that you created, and then click Find.
6. To find all the Service Control Manager Eventlog Provider events for Windows Server Backup, in Find what,** **type: Backup.
7. Double-click the event, and then click Event Log Online Help for more information about how to fix the event.

Verify

To verify that Windows Server Backup is able to perform backup and recovery operations, you should verify that the Block Level Backup Engine service (wbengine) is able to start and that the global catalog and the local catalog have not been corrupted. The global catalog is the file that contains information about all your backups, and the local catalog is the file that contains information about backups saved to a specific destination.

To perform these procedures, you must have membership in Backup Operators or Administrators, or you must have been delegated the appropriate authority.

Verify that wbengine can start

To verify that wbengine can start:

1. Open an elevated Command Prompt window. Click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
2. At the prompt, type: net start wbengine.
3. View the text message to verify that the service starts or is already started.

Verify the local catalog

To verify that the local catalog stored on a backup destination exists and is not corrupted:

1. Open an elevated Command Prompt window. Click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
2. At the prompt, type: wbadmin get versions -backuptarget:<backup destination drive letter>.
3. Verify that command runs without errors.

Verify the global catalog

To verify that the global catalog on the boot volume exists and is not corrupted:

1. Open an elevated Command Prompt window. Click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.

2. At the prompt, type (with no parameters): wbadmin get versions.

   Without parameters this command shows all the backups you have taken that are stored in all locations—that is, information stored in the global catalog.

3. Verify that the command runs without errors.

Related Management Information

Backup Service Availability

File Services