[ovirt-users] Fenced hosts VM's never migrate

Siddharth Patil siddharth at patil.co.uk
Wed Feb 11 17:25:02 UTC 2015


On 11/02/15, 6:46 PM, Martin Perina wrote:
> Hi,
>
> I looked at the logs and the reason why host vmh-02 wasn't
> restarted is that PM restart failed using both other hosts
> (vmh-01 and vmh-03) with error:
>
>    Test Failed, [Powering off machine @ IPMI:10.9.1.11...Failed
>
> So we couldn't restart HA VMs on another hosts, because we were
> not sure that host vmh-02 is really down.
>
> I also noticed that even getting PM status of host vmh-02 is
> problematic, fence agent returned this message:
>
>    Power Management test failed for Host vmh-02.Done
>
> but it also returned successful operation. This looks very very
> suspicious!

Could this be because we turned off power to vmh-02 completely? We are 
testing to make sure that the HA VMs will be restarted on another host 
even if the host suffers complete hardware failure.

>
> Could you please execute following command from vmh-01 or vmh-03
> to test PM agent on vmh-02
>
>    fence_ipmilan -a <IP> -l <USER> -p <PASSWORD> -o status -v -P
>
> where <IP>, <USER> and <PASSWORD> contains values valid for vmh-02?

Here's the result (from both):

Getting status of IPMI:10.9.1.11...Spawning: '/usr/bin/ipmitool -I 
lanplus -H '10.9.1.11' -U 'ADMIN' -P '[set]' -v chassis power status'...
Chassis power = On
Done

Of course, the server is now up and running so this is expected.

>
>
> Could you please send us also vdsm.log from machines vmh-01 and
> vmh-03 so we could investigate details of fence agents execution
> failures?

See attached.

Regards,
Siddharth

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