Event ID 4866 — Backup and Restore Functionality in a Cluster

Updated: November 25, 2009

Applies To: Windows Server 2008 R2

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Successful backup and restore requires certain preconditions. The failover cluster must be running and must have quorum. Software used for backup and restore must be compatible with the Volume Shadow Copy Service (VSS) and with the VSS Writer used by failover clusters. For complete success in a restore, all nodes must be running throughout the time when the restore is performed. Also, the account used by the person performing the backup or restore must be an administrative account.

Event Details

Product: Windows Operating System
ID: 4866
Source: Microsoft-Windows-FailoverClustering
Version: 6.1
Symbolic Name: RES_VSSTASK_DELETE_TASK_FAILED
Message: Volume shadow copy service task resource '%1' failed. The error code was '%2'. This is because the associated task could not be deleted as part of an offline operation. You may need to delete it manually using the Task Scheduler snapin.

Resolve

Check state and configuration of scheduled tasks

An action attempted as part of a task for the Volume Shadow Copy Service did not succeed. In Windows Server Backup, confirm that your scheduled backup tasks are properly configured. You might need to stop and restart a task.

If you do not currently have Event Viewer open, see "Opening Event Viewer and viewing events related to failover clustering." If the event contains an error code that you have not yet looked up, see "Finding more information about error codes that some event messages contain."

To perform the following procedures, you must be a member of the local Administrators group on the server where you want to open Windows Server Backup.

Opening Windows Server Backup

To open Windows Server Backup:

  1. Click Start, click Administrative Tools, and then click Windows Server Backup.
  2. Optionally, to view Help for Windows Server Backup, in the Action pane, click Help.

Opening Event Viewer and viewing events related to failover clustering

To open Event Viewer and view events related to failover clustering:

  1. If Server Manager is not already open, click Start, click Administrative Tools, and then click Server Manager. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.
  2. In the console tree, expand Diagnostics, expand Event Viewer, expand Windows Logs, and then click System.
  3. To filter the events so that only events with a Source of FailoverClustering are shown, in the Actions pane, click Filter Current Log. On the Filter tab, in the Event sources box, select FailoverClustering. Select other options as appropriate, and then click OK.
  4. To sort the displayed events by date and time, in the center pane, click the Date and Time column heading.

Finding more information about the error codes that some event messages contain

To find more information about the error codes that some event messages contain:

  1. View the event, and note the error code.
  2. Look up more information about the error code in one of two ways:

Verify

Confirm that the nodes are running and that the backup or restore process succeeded.

To perform this procedure, you must be a member of the local Administrators group on each clustered server, and the account you use must be a domain account, or you must have been delegated the equivalent authority.

Viewing the status of the nodes in a failover cluster

To view the status of the nodes in a failover cluster:

  1. To open the failover cluster snap-in, click Start, click Administrative Tools, and then click Failover Cluster Management. If the User Account Control dialog box appears, confirm that the action it displays is what you want, and then click Continue.
  2. In the Failover Cluster Management snap-in, if the cluster you want to manage is not displayed, in the console tree, right-click Failover Cluster Management, click Manage a Cluster, and then select or specify the cluster that you want.
  3. If the console tree is collapsed, expand the tree under the cluster you want to manage, and then click Nodes.
  4. View the status for each node. If a node is Up, the Cluster service is started on that node.

Another way to view node status is to run a command on a node in the cluster.

Using a command to view the status of the nodes in a failover cluster

To use a command to view the status of the nodes in a failover cluster:

  1. On the node that you are checking, click Start, point to All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
  2. Type:

    CLUSTER NODE /STATUS

    If the node status is Up, the Cluster service is started on that node.

Related Management Information

Backup and Restore Functionality in a Cluster

Failover Clustering

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