6.19.1 Overview of Snapshot-Based Recovery of KVM Hosts

The recovery of a KVM host consists of a series of tasks.

The recovery procedures use the diagnostics.iso image as a virtual CD-ROM to restart the KVM host in rescue mode using the Integrated Lights Out Manager (ILOM). At a high-level, the steps are:

1. Re-create the following:
   • Boot partitions
   • Physical volumes
   • Volume groups
   • Logical volumes
   • File system
   • Swap partition
2. Activate the swap partition
3. Ensure the /boot partition is the active boot partition
4. Restore the data
5. Reconfigure GRUB
6. Restart the server