Backing up and restoring from the emulated node

Emulated node tape drives are inaccessible

You can perform dumps and restores on the emulated node. However, neither the takeover node nor the emulated node can access the tape drives or other peripheral devices on the failed node.

Prerequisites to performing scheduled dumps on an emulated node

Any dump commands directed to the failed node's tape drives are executed on the takeover node's tape drives. Therefore, any dump commands that you execute using a scheduler, such as the cron command, succeed only under the following conditions:

The device names are the same on both nodes in the cluster.
The dump commands for the takeover node and the emulated node are not scheduled to occur during the same time period; the takeover node and the emulated node cannot access the tape drives simultaneously.

Performing dumps and restores for a failed node

Because the peripheral devices for a failed node are inaccessible, you perform dumps and restores for a failed node by using the emulated node (available using the partner command on the takeover node), making sure that you use a peripheral device attached to the takeover node.

For more information about performing dumps and restores, see the Data Protection Tape Backup and Recovery Guide.

Example using the restore command in partner mode:

filer1 (takeover)> partner

filer1/filer2> restore [options [arguments]]

Example using the restore command as an argument to the partner command:

filer1 (takeover)> partner restore [options [arguments]]