Reinstalling a failover cluster node

To reinstall a failover cluster node:

1. Create a backup of the Administration Server.
2. Switch the active node to maintenance mode.
3. If it is necessary to keep the current operating system, perform the following steps.

   If you want to replace the device or operating system, skip this step.

   1. To stop the failover cluster, run the following command:

      klfoc -stopcluster --stp klfoc

   2. To forcefully stop failover cluster services, run the following commands:

      sudo systemctl stop klfocsvc_klfoc

      systemctl status kl*klfoc*

   3. To unmount failover cluster directories, run the following commands:

      sudo umount /mnt/KlFocDataShare_klfoc

      sudo umount /mnt/KlFocStateShare

   4. To uninstall Kaspersky Security Center Linux, run either of the following commands depending on your Linux distributive:
      • sudo dpkg --remove ksc64

      or

      • sudo yum remove ksc64
   5. Perform all steps from the following instructions for the passive node:
      1. Preparing nodes for a Kaspersky Security Center Linux failover cluster.
      2. Installing Kaspersky Security Center Linux on the Kaspersky Security Center Linux failover cluster nodes.
4. Exit the maintenance mode. Continue from the step 6 (stopping the failover cluster) of the Starting and stopping cluster nodes manually instruction.

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