[lvm-devel] [PATCH] Remove uninitialized cow if snapshot creation fails
Jun'ichi Nomura
j-nomura at ce.jp.nec.com
Fri Nov 9 16:40:52 UTC 2007
Similar to the mirror log cleanup, snapshot cow also should be
removed if the snapshot creation fails.
# dmsetup create --notable testvg-lvol1-cow
# lvcreate -s -l1 -n lvol1 testvg/lvol0
/dev/testvg/lvol1: not found: device not cleared
Aborting. Failed to wipe snapshot exception store. Remove new LV and retry.
# lvs
LV VG Attr LSize Origin Snap% Move Log Copy%
lvol0 testvg -wi-a- 4.00M
lvol1 testvg -wi--- 4.00M
Attached patch removes the incomplete COW LV if the snapshot
creation fails.
A test script is also attached.
Thanks,
--
Jun'ichi Nomura, NEC Corporation of America
-------------- next part --------------
A non-text attachment was scrubbed...
Name: lvm2-cleanup-cow-on-init-failure.patch
Type: text/x-patch
Size: 2476 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/lvm-devel/attachments/20071109/a2fa5ee8/attachment.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: cleanup-lvcreate-snapshot.sh
Type: application/x-sh
Size: 1477 bytes
Desc: not available
URL: <http://listman.redhat.com/archives/lvm-devel/attachments/20071109/a2fa5ee8/attachment.sh>
More information about the lvm-devel
mailing list