[DRBD-user] Having Trouble with LVM on DRBD

Trevor Hemsley themsley at voiceflex.com
Fri Feb 26 00:18:01 CET 2016

Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.


On 25/02/16 23:10, Eric Robinson 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?
>
Those are not the backing devices. Backing devices are the ones named on
the "disk " lines in your DRBD resource files - for example "disk
/dev/vg/lv1". So you need to exclude /dev/vg/lv1 (in that example) from
being looked at by LVM by filtering it out.

Trevor
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