Do you regularly scrub your MD RAIDs?
Hardware HA HA HA raid (AKA on board raid) doesn't have any easy widgets
in their weird proprietary drivers for this, but the gentle and
beautiful Linux software raid does:
sysname:/# echo check > /sys/block/md0/md/sync_action
sysname:/# watch -n .1 cat /proc/mdstat
Do this as often as you like (probably before you do a backup snapshot),
and it'll let you know if there are any data inconsistencies on any of
the drives. As long as you have a hot-spare or two, it'll auto-kick the
bad one and rebuild onto the good one.
I, too, have also been experimenting with running a VM on a base system,
and then snapshotting the VM image regularly (with the base system being
one or two steps removed from a basic live CD w/ no services running).
Received on Tue Jun 5 19:07:45 2007
This archive was generated by hypermail 2.1.8 : Tue Jun 05 2007 - 19:07:47 CST