[ClusterLabs] Two nodes cluster issue

[Kristián Feldsam]

Hello, you have to use second fencing device, for ex. APC Switched PDU.

https://wiki.clusterlabs.org/wiki/Configure_Multiple_Fencing_Devices_Using_pcs

S pozdravem Kristián Feldsam
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> On 24 Jul 2017, at 13:51, Tomer Azran <tomer.azran at edp.co.il> wrote:
> 
> Hello,
>  
> We built a pacemaker cluster with 2 physical servers.
> We configured DRBD in Master\Slave setup, a floating IP and file system mount in Active\Passive mode.
> We configured two STONITH devices (fence_ipmilan), one for each server.
>  
> We are trying to simulate a situation when the Master server crushes with no power.
> We pulled both of the PSU cables and the server becomes offline (UNCLEAN).
> The resources that the Master use to hold are now in Started (UNCLEAN) state.
> The state is unclean since the STONITH failed (the STONITH device is located on the server (Intel RMM4 - IPMI) – which uses the same power supply).
>  
> The problem is that now, the cluster does not releasing the resources that the Master holds, and the service goes down.
>  
> Is there any way to overcome this situation?
> We tried to add a qdevice but got the same results.
>  
> We are using pacemaker 1.1.15 on CentOS 7.3
>  
> Thanks,
> Tomer.
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