I'm having an interesting issue with snapshots. I'm running the following:
linux 2.6.14 (gentoo-r5)
(which I believe contains the DM in the stock 2.6.14 kernel).
lvm2 2.01.14
My filesystems are xfs, and I'm trying to make backups of snapshots using
xfsdump.
What I do to backup:
- Make a snapshot: lvcreate -L 2G -s -n homesnap /dev/vg/home
- Mount it : mount -t xfs -o nouuid /dev/vg/homesnap /mnt/snap/home
- Do an md5-type capture on /mnt/snap/home, result in /home/0sure.gz
- Copy /home/0sure.gz to /mnt/snap/home
- xfsdump /mnt/snap/home.
I've not had any problems with any of the files in the backup, except for
the integrity files that I copied to the snapshot. They are frequently
corrupted, but curiously I've only seen it on my 'var' partition.
I was just wondering if this is part of the known issues with snapshots, or
if I should be investigating further to try to figure out what is wrong.
Dave
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