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>. -- Bill Seligman | Phone: (914) 591-2823 Nevis Labs, Columbia Univ | mailto://[email protected] PO Box 137 | Irvington NY 10533 USA | http://www.nevis.columbia.edu/~seligman/
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