[Pacemaker] APC Master Stonith

[Dominik Klein]

Sander van Vugt wrote:
> Hi,
> 
> On Wed, 2010-01-20 at 07:56 +0100, Dominik Klein wrote:
>> Errol Neal wrote:
>>> On Tue, Jan 19, 2010 04:19  PM, Sander van Vugt <mail at sandervanvugt.nl> wrote:
>>>> Hi,
>>>>
>>>> I hope someone has configured the APC Master Stonith resource (which you
>>>> would use to have pacemaker to a device like the APC switched rack PDU),
>>>> as I have a - probably extremely stupid - conceptual question about it. 
>>>>
>>>> When I look at the options the resource has, it allows me to enter
>>>> username, password and IP address. What I would also expect, is to give
>>>> it something like a name of the node that is should do STONITH on, as
>>>> well as the port on the device that it should power cycle. Am I missing
>>>> something? Or do I have to specify this information as additional
>>>> attributes? And if so, what exactly would be the syntax?
>>>>
>>> What type of device are you trying to get the plugin to work with?
>>> I'm using APC rack PDUs and this plugin did not work by default for me. I had to hack it to get it work for me, but
>>> it works exactly how I wanted it to. By the way, I'm not using the snmp - i'm using telnet.
>>>
>>> So here is how mine's is configured:
>>>
>>> primitive stonith-apcmaster-axigen2 stonith:apcmaster \
>>>         params ipaddr="x.x.x.x login="axigen2" password="x.x.x.x" \
>>>         op monitor interval="120s" timeout="20s" \
>>>         op startup interval="0" timeout="60s" \
>>>         
>>> Then I have a constraint that prohibits it a node from committing suicide.
> 
> I'm interested in knowing how you configured this constraint. As I
> understand it now, there should be one primitive only in the cluster to
> address the PDU, which would be used to perform STONITH on all nodes
> that need one. You probably used a location constraint, but how exactly?

You don't need the location constraint. Even if the stonith resource was
running on the node that is to be shot, the cluster would start it on
the other node and then shoot the appropriate node.

>> I'd also be interested in the changes.
>>
>> The apcmastersnmp plugin does work for me with APC7920 though.
>>
>> Thanks,
>> Dominik
>>
> Dominic, I'd be interested to know how you configured the apcmastersnmp
> plugin. Would you mind sending me your configuration?

primitive apcstonith-test stonith:apcmastersnmp \
	params community="my-community" port="161" ipaddr="1.1.1.1" \
	op monitor interval="3600" timeout="120" \
	op start interval="0" requires="nothing" \
	meta target-role="Started"

Regards
Dominik