Difference between revisions of "Backup/Restore procedure"
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#Only [[User:SteveB|SteveB]] has overview and responsibility. This is a single point of failure. | #Only [[User:SteveB|SteveB]] has overview and responsibility. This is a single point of failure. | ||
#Only one physical backup copy - overwritten daily - so no possibility to go back more than one day if a corrupt system is backed up | #Only one physical backup copy - overwritten daily - so no possibility to go back more than one day if a corrupt system is backed up | ||
| − | #No regular verification that the backup copy is usable so the backup procedure could fail silently eg if there is anything wrong with the script logic | + | #No regular verification that the backup copy is usable - so the backup procedure could fail silently eg if there is anything wrong with the script logic |
#VMSnapshot/Rsync is not totally proven method but results in minimal downtime whereas VMSuspend/Rsync will result in maybe 30 mins downtime | #VMSnapshot/Rsync is not totally proven method but results in minimal downtime whereas VMSuspend/Rsync will result in maybe 30 mins downtime | ||
Revision as of 11:36, 10 December 2008
Contents
Current Strategy
Backup
Currently running a backup script at 06:00 UTC
The VMWare virtual machine is snapshotted and then its file system is rsync'd while the VM is running.
Restore to original host
Copy the rsync copy back to its original location
Restart the VM after removing the snapshot
Restore to another host
Similar to restoration to the original location plus:
Needs VMWare Server 2.0 installed
gpl.openqm.com DNS to point to new server.
Problems with current strategy
- Only SteveB has overview and responsibility. This is a single point of failure.
- Only one physical backup copy - overwritten daily - so no possibility to go back more than one day if a corrupt system is backed up
- No regular verification that the backup copy is usable - so the backup procedure could fail silently eg if there is anything wrong with the script logic
- VMSnapshot/Rsync is not totally proven method but results in minimal downtime whereas VMSuspend/Rsync will result in maybe 30 mins downtime
