[Pacemaker] stonith and pacemaker with Centos 6

[Vadym Chepkov]

On Sep 20, 2011, at 1:59 PM, Charles Richard wrote:

> Hi, on my quest to trying to understand STONITH more and to get it working with CentOS 6, i installed the fencing_agents on the os and also installed OpenIPMI.  If i understood a little, the fence_ipmilan fencing agent is the one I'd use in my pacemaker config and this fencing agent would call "ipmitool" or some other similar command.
> 
> So i set out to make sure i could run the following on both my nodes: 
> 
> ipmitool -I lan -U root -H xxx.xxx.xxx.xxx -a chassis power status
> 
> The problem being on one node this work and on another this doesn't.  On the one it doesn't, i get:
> 
> Activate Session command failed
> Error: Unable to establish LAN session
> Unable to get Chassis Power Status
> 
> which seems to be a standard error.
> 
> I'm hoping somebody might have some suggestions on why this isn't working or if I'm way out in left field and this isn't relevant to my DRBD, Pacemaker config on CentOS 6 to give me a nudge in another direction.  I'm kind of getting stuck and google searches galore are not giving me any more inspiration.
> 
> Thanks,
> Charles


You didn't say what device you are trying to use. On Dell servers, for example, you can't call your own iDRAC controller if it's network interface is shared with LAN interface.
Also, new models use IPMI 2.0 which requires lanplus interface.

Cheers,
Vadym


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