[ClusterLabs] [DRBD-user] DRBD fencing issue on failover causes resource failure

Digimer lists at alteeve.ca
Wed Mar 16 15:31:33 EDT 2016


On 16/03/16 03:29 PM, Digimer wrote:
> On 16/03/16 01:51 PM, Tim Walberg wrote:
>> Is there a way to make this work properly without STONITH? I forgot to mention
>> that both nodes are virtual machines (QEMU/KVM), which makes STONITH a minor
>> challenge. Also, since these symptoms occur even under "pcs cluster standby",
>> where STONITH *shouldn't* be invoked, I'm not sure if that's the entire answer.
> 
> Not sanely, no. All clusters need HA (if you don't need to coordinate
> services, you don't need HA). In shared storage though, it becomes extra
> critical.

s/all cluster need HA/all clusters need fencing/

> As for fencing KVM; fence_xvm or fence_virsh (the former being ideal for
> production, the later being easier to setup but more fragile, so only
> good for testing).
> 


-- 
Digimer
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