[linux-lvm] snapshot on 6.8.5/FC development
fedora.gunnar at hilling.de
Thu Sep 16 00:56:27 UTC 2004
I just tried the lvm2/dm-snapshot feature and failed miserably...
After reading some older postings in this and the dm-devel mailing lists
I'm not sure what to do:
VG-Size: 4G on Raid-Mirror (/dev/md1)
lvcreate --snapshot --size 100m --name snap /dev/TestMirrorGroup/OnlineVol
will block forever. I have to reboot the computer. After
that /dev/TestMirrorGroup/snap is there...
I froze xfs before (xfs_freeze -f)
Any Clue? Is this related to xfs-FS only or do there exist general
problems (I read somewhere about problems snapshotting raids...)
BTW: Why isn't it possible to create the snapshot on another VG than the
original. This would be quite nice becauce in a typical setup it could
be an advantate to have the snapshot on a small extra disk, keeping the
original data separated from the writes to the snapshot.
Any help appreciated,
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