Chapter 5. Execute the Restore Procedure

Procedure

1. Shutdown the undercloud node. Ensure that the undercloud node is shutdown completely before proceeding.
2. Restore the undercloud node by booting it with the ISO image created during the backup process. The ISO image is located under the /ctl_plane_backups directory of the Backup node.

3. During the boot phase a boot menu will appear.

   

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   Select Recover <Undercloud Node> where <Undercloud Node> is the name of the Undercloud node.

   Note

   DO NOT select Automatic Recover <Undercloud Node>. It could lead to an SELinux context mismatch.

   You should see the following:

   Welcome to Relax-and-Recover. Run "rear recover" to restore your system!
   RESCUE <Undercloud Node>:~ # rear recover

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   The image restore should progress quickly. Once complete, the console should echo the following:

   Finished recovering your system
   Exiting rear recover
   Running exit tasks

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   Once the command line interface is available, the image is restored. Switch the node off.

   RESCUE <Undercloud Node>:~ #  poweroff

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   On boot up, the node will resume with its previous state.

1. Shutdown each Control Plane node. Ensure that the Control Plane nodes are shutdown completely before proceeding.
2. Restore the Control Plane nodes by booting them with the ISO image created during the backup process. The ISO images are located under the /ctl_plane_backups directory of the Backup node.

3. During the boot phase a boot menu will appear.

   

   View larger image

   

   Select Recover <Control Plane Node> where <Control Plane Node> is the name of the Control Plane node.

   Note

   DO NOT select Automatic Recover <Control Plane Node>. It could lead to an SELinux context mismatch.

   You should see the following:

   Welcome to Relax-and-Recover. Run "rear recover" to restore your system!
   RESCUE <Control Plane Node>:~ # rear recover

   Copy to Clipboard Toggle word wrap

   The image restore should progress quickly. Once complete, the console should echo the following:

   Finished recovering your system
   Exiting rear recover
   Running exit tasks

   Copy to Clipboard Toggle word wrap

   Once the command line interface is available, the image is restored. Switch the node off.

   RESCUE <Control Plane Node>:~ #  poweroff

   Copy to Clipboard Toggle word wrap

   On boot up, the node will resume with its previous state.

4. Check the status of pacemaker to ensure the services are running properly.

   # pcs status

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