[Pacemaker] Using "avoids" location constraint

[Lars Marowsky-Bree]

On 2013-07-08T09:57:38, Digimer <lists at alteeve.ca> wrote:

> Building a shared storage cluster without fencing is asking for heart-ache.
> There is no case, quorum or not, where it is ok to skip fencing. If a node
> locks up mid-write and the other node simply assumes it's dead, cleans up
> and goes on using storage without coordinating with the peer, and then the
> peer recovers and continues writing, you've just corrupted your data.
> 
> Please use fencing.

While in general I agree, the above failure case is not likely with
DRBD.


Regards,
    Lars

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