That’s what I get for having worked with drbd for so long. I forgot to RTFM.
-- Eric Robinson From: Igor Cicimov [mailto:[email protected]] Sent: Thursday, February 25, 2016 3:14 PM To: Eric Robinson <[email protected]> Cc: Trevor Hemsley <[email protected]>; drbd-user <[email protected]> Subject: Re: [DRBD-user] Having Trouble with LVM on DRBD On Fri, Feb 26, 2016 at 10:10 AM, Eric Robinson <[email protected]<mailto:[email protected]>> wrote: > The usual problem with LVM on top of DRBD is that the > backing device gets seen as an LVM PV and is grabbed by > LVM before DRBD starts up. That means DRBD cannot access > it since it's already in use. Solution: adjust the filter > lines in lvm.conf to exclude the backing devices from > LVM consideration. You mean /dev/drbd0 and /dev/drbd1? --Eric The instructions are here: https://drbd.linbit.com/users-guide/s-lvm-drbd-as-pv.html Then in pacemaker, example from one of my clusters: primitive p_lvm_vg1 LVM \ params volgrpname=vg1 \ op monitor interval=60 timeout=30 \ op start timeout=30 interval=0 \ op stop timeout=30 interval=0 \ meta target-role=Started colocation c_vg1_on_drbd +inf: g_vg1 ms_drbd_vg1:Master order o_drbd_before_vg1 +inf: ms_drbd_vg1:promote g_vg1:start to tide them up and start the volume on the drbd master. Hope this helps. Igor
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