Installation guide

Maintenance Procedures

restores it to its normal form, but it is written to another partition (/dev/sda2) and does not

overwrite the current version of the filesystem.

2. To actually use the restored version of the root filesystem, you need to reboot the XenServer

Host using the XenServer installation CD and select the Restore from backup option.

After the restore from backup is completed, reboot the XenServer Host and it will start up

from the restored image.

Finally, restore the VM meta-data using

xe pool-database-restore file-name=/var/backup/pool-database-*

Note

Restoring from a backup as described here does not destroy the backup partition.

Procedure B.9. To restart a crashed XenServer Host

1. If your XenServer Host is crashed and not reachable anymore, you need to use the XenServ-

er installation CD to do an upgrade install (see Section B.5, “Upgrading from version 3.2 to

4.0.1”). When that is completed, reboot the machine and make sure your host is reachable

with XenCenter or remote CLI.

2. Then proceed with the procedure on restoring a running XenServer Host above.

B.7.3. Backing up VMs

VMs are best backed up using standard backup tools running on them individually. For Windows

VMs, we have tested CA BrightStor ARCserve Backup.