[Linux-cluster] Two node cluster without quorum disk

[Flavio Junior]

Yes, you can.

http://sources.redhat.com/cluster/wiki/FAQ/CMAN#tie_breaker

Some examples by qdisk manpage:

3.3. Examples
3.3.1. 3 cluster nodes & 3 routers
        <cman expected_votes="6" .../>
        <clusternodes>
            <clusternode name="node1" votes="1" ... />
            <clusternode name="node2" votes="1" ... />
            <clusternode name="node3" votes="1" ... />
        </clusternodes>
        <quorumd interval="1" tko="10" votes="3" label="testing">
            <heuristic program="ping A -c1 -t1" score="1" interval="2" tko="3"/>
            <heuristic program="ping B -c1 -t1" score="1" interval="2" tko="3"/>
            <heuristic program="ping C -c1 -t1" score="1" interval="2" tko="3"/>
        </quorumd>


--

Flávio do Carmo Júnior aka waKKu

On Wed, Apr 22, 2009 at 7:57 AM, Ralph Zukeb <ralphzukeb at gmail.com> wrote:
>>>>> I tried this, but when I killed the switch for the cluster traffic,
>>>>> BOTH nodes got fenced! Can I avoid this?
>>>>
>>>> Don't kill the switch like that - you're causing a split brain.
>>>> Use two switches and multiple interfaces (bonding) to provide network
>>>> redundancy.
>
> Can I use a tie-breaker ip without a quorum disk?
>
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