dejanmm at fastmail
Apr 16, 2012, 5:56 AM
Re: fence_nut fencing agent - use NUT to fence via UPS
[In reply to]
On Fri, Apr 13, 2012 at 05:51:09PM -0400, William Seligman wrote:
> On 3/1/12 5:37 PM, William Seligman wrote:
> > After days spent debugging a fencing issue with my cluster, I know for certain
> > that this fencing agent works, at least for me. I'd like to contribute it to the
> > Linux HA community.
> > In my cluster, the fencing mechanism is to use NUT (Network UPS Tools;
> > <http://www.networkupstools.org/> to turn off power to a node. About 1.5 years
> > ago, I contributed a NUT-based fencing agent for Pacemaker 1.0:
> > <http://oss.clusterlabs.org/pipermail/pacemaker/2010-August/007347.html>
> > That script doesn't work for stonith-ng. So here's a new agent, written in perl,
> > and tested under pacemaker-1.1.6 and nut-2.4.3.
> > I know there's a fence_apc_snmp agent that already in resource-agents. However,
> > that agent only works with APC devices with multiple outlet control; it displays
> > an error messages when used with my UPSes. This script is for those who'd rather
> > use NUT than play with SNMP MIBs.
> I've made some improvements to the NUT-based fencing agent I contributed before.
> The changes are:
> - A more rigorous approach to the error codes returned by the agent.
> - Added options to delay the times between issuing a poweron/poweroff command
> and verifying that the UPS responds.
> The revised fence_nut agent is at <http://pastebin.com/sQdqWKQq>.
This seems to be a version for RHCS, right? In that case, better
send patches to another mailing list.
> Bill Seligman | Phone: (914) 591-2823
> Nevis Labs, Columbia Univ | mailto://seligman [at] nevis
> PO Box 137 |
> Irvington NY 10533 USA | http://www.nevis.columbia.edu/~seligman/
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