[linux-lvm] LVM snapshot with Clustered VG
Vladislav Bogdanov
bubble at hoster-ok.com
Fri Mar 1 15:41:26 UTC 2013
Sorry, forgot to reply to list from the first attempt.
Andreas Pflug <pgadmin at pse-consulting.de> wrote:
>Hi Vladislav,
>
>I tried the patch you mentioned in
>https://www.redhat.com/archives/linux-lvm/2013-January/msg00006.html ,
>but apparently it doesn't work for me. On a locally active LV, I still
>get
>
>./lvm lvchange -aey -vvvv vg/locktest
>
>...
>Activating logical volume "locktest" exclusively
>#activate/dev_manager.c:284 Getting device info for vg-locktest
>
>[LVM-oW2W7O2cgWRLUhoVR8qqqQY7wlcYexmWU8y83bGQz9IcnXh3GfXslBN6ziZrC3BN]
>#ioctl/libdm-iface.c:1724 dm info
>LVM-oW2W7O2cgWRLUhoVR8qqqQY7wlcYexmWU8y83bGQz9IcnXh3GfXslBN6ziZrC3BN
>NF [16384] (*1)
>#locking/cluster_locking.c:568 Lock held for
>oW2W7O2cgWRLUhoVR8qqqQY7wlcYexmWU8y83bGQz9IcnXh3GfXslBN6ziZrC3BN, node
>7400a8c0 : CR
>#activate/activate.c:1067 vg/locktest is active
>#locking/cluster_locking.c:508 Locking LV
>oW2W7O2cgWRLUhoVR8qqqQY7wlcYexmWU8y83bGQz9IcnXh3GfXslBN6ziZrC3BN EX
>(LV|NONBLOCK|CLUSTER|LOCAL) (0xdd)
>#locking/cluster_locking.c:395 Error locking on node 7400a8c0: Device
>
>or resource busy
>
>Can you give me a hint what to try further?
>
>Regards
>Andreas
Hi Andreas,
Lock convertion is only enabled if you pass --force flag.
Also, to upgrade local lock to exclusive one, you need to ensure IIRC that no more node holds local lock.
Vladislav
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