[Linux-cluster] Which APC fence device ?

[Greg Forte]

Eric Kerin wrote:
> On Wed, 2005-08-10 at 11:01 -0400, Greg Forte wrote:
> 
>>Eric Kerin wrote:
>>
>>>On Wed, 2005-08-10 at 10:20 -0400, Greg Forte wrote:
>>>
>>>
>>>>There was a message on this list in January to the effect of "does APC 
>>>>7900 work with fence_apc?" / "I think so ...".
>>>>
>>>>Has anyone confirmed this?
>>>
>>>
>>>I'm using them in my cluster, they work well with the fence_apc agent.
>>>
>>>The only caveat is that the agent won't work if you use outlet groups
>>>for cluster nodes, without a few changes to the agent.  I can give you
>>>my modified version if you want to use outlet groups for cluster nodes.
>>>(A patch will be coming that will work with both port group and non-port
>>>group modes, but I haven't had a chance to write it up yet.)
>>
>>Great, thanks.
>>
>>I'm new to this sort of hardware, not sure exactly what you mean by 
>>"outlet groups", could you elaborate?
>>
> 
> It's a feature on the APC 7900 that will allow a single command to one
> 7900 to automatically turn off/on ports on other 7900s via the network.
> I use it to turn off both power supplies on my cluster nodes at once,
> while still providing redundant paths for power.

Ah, I see.  Yes, I will probably be wanting to do the same thing, if you 
could forward me your patch I'd appreciate it.

-g

Greg Forte
gforte at udel.edu
IT - User Services
University of Delaware
302-831-1982
Newark, DE