On Mon, Jan 30, 2012 at 05:42:34PM -0500, William Seligman wrote:
> I'm trying to follow the directions for setting up a dual-primary DRBD setup
> with CMAN and Pacemaker. I'm stuck at an annoying spot: Pacemaker won't
> promote
> the DRBD resources to primary at either node.
>
>
> Here's the result of crm_mon:
>
> Last updated: Mon Jan 30 17:07:03 2012
> Stack: cman
> Current DC: hypatia-tb - partition with quorum
> Version: 1.1.5-5.el6-01e86afaaa6d4a8c4836f68df80ababd6ca3902f
> 2 Nodes configured, unknown expected votes
> 2 Resources configured.
> ============
>
> Online: [ orestes-tb hypatia-tb ]
>
> Master/Slave Set: AdminClone [AdminDrbd]
> Slaves: [ hypatia-tb orestes-tb ]
> crm configure show:
>
> node hypatia-tb
> node orestes-tb
> primitive AdminDrbd ocf:linbit:drbd \
> params drbd_resource="admin" \
> op monitor interval="60s" role="Master" \
You are missing an additional monitor op for role=Slave
make sure it has a different interval than the one for role=Master.
e.g.
op monitor interval="59s" role="Slave" \
> op stop interval="0" timeout="320" \
> op start interval="0" timeout="240"
> primitive Clvmd lsb:clvmd
> ms AdminClone AdminDrbd \
> meta master-max="2" master-node-max="1" clone-max="2" clone-node-max="1"
> notify="true"
> clone ClvmdClone Clvmd
> colocation ClvmdWithAdmin inf: ClvmdClone AdminClone:Master
> order AdminBeforeClvmd inf: AdminClone:promote ClvmdClone:start
> property $id="cib-bootstrap-options" \
> dc-version="1.1.5-5.el6-01e86afaaa6d4a8c4836f68df80ababd6ca3902f" \
> cluster-infrastructure="cman" \
> stonith-enabled="false"
Also remember that, for dual-primary DRBD,
working and tested fencing both on cluster level (stonith) and on drbd
level (fence-peer) is mandatory.
Unless you don't care for data integrity.
>
>
> DRBD looks OK:
>
> # cat /proc/drbd
> version: 8.4.0 (api:1/proto:86-100)
> GIT-hash: 28753f559ab51b549d16bcf487fe625d5919c49c build by gardner@,
> 2012-01-25
> 19:10:28
> 0: cs:Connected ro:Secondary/Secondary ds:UpToDate/UpToDate C r-----
> ns:0 nr:0 dw:0 dr:0 al:0 bm:0 lo:0 pe:0 ua:0 ap:0 ep:1 wo:b oos:0
--
: Lars Ellenberg
: LINBIT | Your Way to High Availability
: DRBD/HA support and consulting http://www.linbit.com
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