[ClusterLabs] Antw: Re: Antw: Re: OCFS2 on cLVM with node waiting for fencing timeout

Ulrich Windl Ulrich.Windl at rz.uni-regensburg.de
Thu Oct 13 04:36:02 EDT 2016

>>> Eric Ren <zren at suse.com> schrieb am 13.10.2016 um 09:48 in Nachricht
<73f764d0-75e7-122f-ff4e-d0b27dbdd818 at suse.com>:
>> When assuming node h01 still lived when communication failed, wouldn't 
> quorum prevent h01 from doing anything with DLM and OCFS2 anyway?
> Not sure I understand you correctly. By default, loosing quorum will make 
> DLM stop service. 

That's what I'm talking about: If 1 of 3 nodes is rebooting (or the cluster is split-brain 1:2), the single node CANNOT continue due to lack of quorum, while the remaining two nodes can. Is it still necessary to wait for completion of stonith?

> See `man dlm_controld`:
> ```
> --enable_quorum_lockspace 0|1
>                 enable/disable quorum requirement for lockspace operations
> ```

Does not exist in SLES11 SP4...


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