[linux-lvm] Trouble creating snapshot device
Patrick Honing
Patrick.Honing at han.nl
Mon May 29 14:55:20 UTC 2006
Hello,
We are in trouble creating snapshot devices on fedora-core 4... Kernel
version: 2.6.16-1.2111_FC4smp. We have created new RPM's using the
development SRPMS (device-mapper-1.02.07-1.0 & lvm2-2.02.06-1.2.1). The
same trouble occurs with stock device-mapper & lvm2 RPM's!
Sometimes the snapshot device is created succesfully but most times is
fails... The script:
ophelia.han.nl:~# lvs
LV VG Attr LSize Origin Snap% Move Log Copy%
cache vg -wi-ao 1.00G
home vg -wi-ao 500.00M
log vg -wi-ao 500.00M
postfix vg -wi-ao 10.00G
tmp vg -wi-ao 100.00M
usr vg -wi-ao 800.00M
var vg -wi-ao 200.00M
ophelia.han.nl:~# lvcreate -s -n test -L 100M /dev/vg/postfix
LV vg/test in use: not deactivating
Couldn't deactivate new snapshot.
ophelia.han.nl:~# lvs
LV VG Attr LSize Origin Snap% Move Log Copy%
cache vg -wi-ao 1.00G
home vg -wi-ao 500.00M
log vg -wi-ao 500.00M
postfix vg -wi-ao 10.00G
test vg -wi-a- 100.00M
tmp vg -wi-ao 100.00M
usr vg -wi-ao 800.00M
var vg -wi-ao 200.00M
ophelia.han.nl:~# mount /dev/vg/test /1
mount: you must specify the filesystem type
ophelia.han.nl:~# lvremove /dev/vg/test
Do you really want to remove active logical volume "test"? [y/n]: y
Logical volume "test" successfully removed
ophelia.han.nl:~# lvcreate -s -n test -L 100M /dev/vg/postfix
Logical volume "test" created
ophelia.han.nl:~# mount /dev/vg/test /1
ophelia.han.nl:~# ls /1
active bounce corrupt defer deferred flush hold incoming lost
+found maildrop pid private public saved trace
ophelia.han.nl:~# umount /1
ophelia.han.nl:~# lvremove /dev/vg/test
Do you really want to remove active logical volume "test"? [y/n]: y
Logical volume "test" successfully removed
ophelia.han.nl:~# lvcreate -s -n test -L 100M /dev/vg/postfix
LV vg/test in use: not deactivating
Couldn't deactivate new snapshot.
ophelia.han.nl:~# mount /dev/vg/test /1
mount: you must specify the filesystem type
ophelia.han.nl:~# lvremove /dev/vg/test
Do you really want to remove active logical volume "test"? [y/n]: y
Logical volume "test" successfully removed
ophelia.han.nl:~# lvcreate -s -n test -L 100M /dev/vg/postfix
LV vg/test in use: not deactivating
Couldn't deactivate new snapshot.
ophelia.han.nl:~# lvremove /dev/vg/test
Do you really want to remove active logical volume "test"? [y/n]: y
Logical volume "test" successfully removed
Anyone any idea?
Kind regards,
Patrick
----------------------------------------------------------------------
| Patrick Honing (Patrick.Honing at han.nl)
| ICT Developer
| Intelligent Network & Middleware Services (INMS)
| Service Bedrijf SU ICT
| Hogeschool van Arnhem en Nijmegen (http://www.han.nl)
| Tel.: +31-26-3691522 Fax: +31-26-3691510
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