[linux-lvm] Two questions about cluster support (2 problems, actually)
linux at alteeve.com
Wed Mar 17 02:57:10 UTC 2010
On 10-03-16 04:50 PM, Milan Broz wrote:
>> # pvdisplay
>> connect() failed on local socket: Connection refused
>> WARNING: Falling back to local file-based locking.
>> Volume Groups with the clustered attribute will be inaccessible.
>> "/dev/drbd0" is a new physical volume of "399.99 GB"
> apparently clvmd is not running, you cannot see clustered PVs.
> Anyway, the DRBD need to setup filters to work properly with lvm2,
> (filter out underlying drbd device)
> (or update to new lvm2 version, RHEL5/CentOS5 build will be available
> in next minor update).
> For more info see https://bugzilla.redhat.com/show_bug.cgi?id=530881
> (not sure it is related, but for archive and other users...)
Thanks for the reply, Milan!
I had made the change to the 'filter' argument, but I was using 'filter
= [ "a|drbd.*|", "r|.*|" ]'. I switched to 'filter = [ "a|^/dev/drbd|",
"a/sd*/", "r/.*/" ]' and started 'clvmd'. This seems to have solved the
problem, so thank you.
If I may ask another question though;
My DRBD device is '/dev/drbd0' which sits on either node's
'/dev/san0x/lv02'. When I ran 'pvcreate /dev/drbd0' the PV was created
successfully and 'pvdisplay' shows the new PV on both nodes. However, I
--- Physical volume ---
PV Name /dev/sda2
VG Name san02
PV Size 465.51 GB / not usable 14.52 MB
PE Size (KByte) 32768
Total PE 14896
Free PE 1407
Allocated PE 13489
PV UUID ru7tmz-Qd4d-aatg-4ReY-TPPq-gMll-Z5ZOkL
"/dev/san02/lv02" is a new physical volume of "399.99 GB"
--- NEW Physical volume ---
PV Name /dev/san02/lv02
PV Size 399.99 GB
PE Size (KByte) 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID MjwXhY-T3dw-IUkI-ZdSI-FKEB-KJdq-nl9GUo
Note that the 'PV Name' is '/dev/san02/lv02' but the device passed was
'pvcreate /dev/drbd0'. Is this correct? I'd expect it to show the DRBD
device, not the DRBD's underlying logical volume.
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