On Tue, 2006-01-31 at 11:35, Karanbir Singh wrote:
From the longtime experience direction, be sure to figure out the
snapshotting upfront; a good snapshot rotation can save you so much pain it's not funny; many commercial NAS (NetApp, SnapServer, EMC, etc) have this integrated. When looking at a DIY linux NAS, you may have to roll it up.
I think there are still problems with LVM2 snapshots.
we're hoping to see a major improvement in that situation ( lvm2 / kernel 2.6 / snapshots ) with the CentOS 4.3 release. not too far now :)
Do you know if it is possible to image-copy a snapshot off to another system? A backuppc archive contains so many hardlinks that normal copy techniques are not practical. I currently raid-mirror to external firewire drives that are rotated offsite periodically, but it would probably work better to freeze an LVM snapshot and copy that instead.