10.1.2 How to Restore a Local Boot Disk From Backup (SSVM or CVM)

When the physical hosts are in the same cluster, this procedure is performed on the local host while another host provides data services for all hosts. In this example, we use two physical hosts phys-hahost1 and phys-hahost2, and two logical hosts hahost1 and hahost2. In this example, the boot disk is not mirrored.

These are the high-level steps to restore a boot disk from backup in an SSVM or CVM configuration.

• Halting the host requiring the restore

• Restoring the boot disk from backup

• Starting Sun Cluster on that host

• Switching over the logical host to its default master (if manual mode is set for switchback)

These are the detailed steps to restore a boot disk from backup in an SSVM or CVM configuration. In this example, phys-hahost1 contains the disk to be restored.

1. Halt the host requiring the restore.

2. Restore the boot disk on the host being restored from the backup media.

   Follow the procedure described in "Restoring Files and File Systems" in the Solaris -- Book Title for SYSADMIN1, unknown -- to restore the boot disk file system.

3. Reboot the host being restored.

   The reboot causes the host to discover all the devices.

   ---

   Note -

   If the disks are reserved, it may be necessary to run vxdctl -enable at a later time, when reservations are released.

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4. Start Sun Cluster on the local host.

   phys-hahost1# scadmin startnode

5. Switch back the logical hosts to the default master, if necessary.

   If manual mode is not set, an automatic switchback will occur.

   phys-hahost1# haswitch phys-hahost1 hahost1