During a configuration backup, the serial number is backed up with the configuration.

The number is restored when you restore the configuration. The number is not preserved when you run the Recovery CD (ESXi Embedded) or perform a repair operation (ESXi Installable).

You can back up and restore configuration information as follows.

  1. Back up the configuration by using the vicfg-cfgbackup command.
  2. Run the Recovery CD or repair operation.
  3. Restore the configuration by using the vicfg-cfgbackup command.

When you restore a configuration, you must make sure that all virtual machines on the host are stopped.