Hello, all.
I work with lvm ( kernel 2.4.17 + ext3-2.4-0.9.17-2418p3 patch ) but i
can't
snapshot a ext3 fs directly
# lvcreate --snap --name snap --size +1G /dev/vgtest/lvtest
# mount -o ro -t ext3 /dev/vgtest/lvtest /snap /mnt/snap
ext3 can't work , ext2 work
If I mount readonly the etx3 filesystem, snapshot-it, and remount rw the
filesystem ( and ro the snapshot ) it work fine.
# mount -o remount,ro /dev/vgtest/test ;
# lvcreate --snap --name snap --size +1G /dev/vgtest/lvtest;
# mount -o remount,rw /dev/vgtest/test ;
# mount -o ro -t ext3 /dev/vgtest/snap /mnt/snap
ext3 now work fine, but I must stop all services
I have apply the lvm-lock-patch ( linux-2.4.11-VFS-lock.patch ) , and _now_ I
can snapshot a ext3 filesystem whitout remounting-it ro.
# lvcreate --snap --name snap --size +1G /dev/vgtest/lvtest
# mount -o ro -t ext3 /dev/vgtest /snap /mnt/snap
ext3 work fine.
Does anyone have test this patch for production system ?
Does anyone know a test suite for this patch and snapshot ?
TIA