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Cluster Recovery

You can perform 1-Touch recovery to restore a single node or the entire cluster. Before performing the 1-Touch recovery, ensure that the following prerequisites are satisfied:

Prerequisites

Once all the prerequisites are satisfied, you can perform 1-Touch recovery in one of the following scenario:

Restore Entire Cluster Set Up That Includes the Cluster Shared Disk

To restore the entire cluster set up that includes the cluster shared disks, use the following procedure:

Procedure

  1. Restore all the physical nodes using the 1-Touch recovery operation.
  2. Create the cluster shared disk with the same drive letters that were used in the source client computer.
  3. Restore the data from the source cluster client computers.
  4. Open the failover cluster manager and repair the cluster disks using the Repair option.For more information, see Microsoft article Replacing a Shared Disk on a 2008 Failover Cluster.

Recover Any One Node in the Cluster

When any one node (passive or active) of the cluster is down, you can restore the node as follows:

  1. Use the 1-Touch Live CD to boot the node.

    If an active node of the cluster is down, once you boot the node, the quorum disk and shared disks will move to the other node of the cluster. The other node will then become the active node.

  2. Perform Interactive Restore or Non-interactive restore to restore the node.

Recover All the Nodes of the Cluster

If all the nodes are down and quorum disk is uncorrupted, you can follow the steps given below to restore the nodes:

Restoring Active Node

You must perform an interactive restore of the active node. Follow the steps give below to restore the active node:

  1. Use the 1-Touch Live CD to boot the active node.
  2. In the Language SelectionDialog dialog box, select a language from the list. To use the same language for the keyboard, click Use default keyboard for the selected language check box and click OK.
  3. Click Next.
  4. Click Yes if all disk devices are detected.
  5. Enter CommServe Host Name.
  6. Enter CommServe IP address.
  7. Click Get Clients.
  8. Select the client host name from the Client Name list.
  9. Click Next.
  10. Review network information for CommServe and restored client.
  11. Click Next.
  12. Enter CommCell User Name.
  13. Enter CommCell Password. Enter the credentials that are used to login to CommCell from the client.
  14. Click Next.
  15. Select Dissimilar Disk Mapping. For more information, see Disk Mapping Options.
  16. Manually clean and create system disk. Do not format shared or quorum disk.
  17. Complete the Interactive Restore.

Recovering Passive Nodes

You can perform interactive restore or non-interactive restore to recover the passive nodes. For more information, refer to Performing Interactive Restoresor Performing Non-interactive Restores.

Recover all the Nodes of the Cluster and Quorum Disk

If all the nodes of a cluster are down and the quorum disk is also inaccessible, follow the steps given below to restore the nodes and quorum disk:

Recover Active Node

You can perform interactive restore or non-interactive restore to recover the passive nodes. For more information, refer to Performing Interactive Restoresor Performing Non-interactive Restores.

Recover quorum disk

Once the Active Node is restored, you can restore the data on the quorum disk or shared disk from the CommCell console. Follow the steps given below:

  1. From the CommCell Console, navigate to Client Computers | <Windows Cluster Client> | File System.
  2. Right-click defaultBackupSet and click Browse and Restore.
  3. Select the data that you want to restore on the quorum disk or shared disk and click Recover all selected.
  4. Specify the location where you want to restore the selected data.
  5. Click OK.

Recover Passive Nodes

You can perform interactive restore or non-interactive restore to recover the passive nodes. For more information, refer to Performing Interactive Restoresor Performing Non-interactive Restores.

Last modified: 1/11/2018 7:26:36 PM