Chris, That would be great if you could pass those on to me.
Thank you, Rick -----Original Message----- From: Chris Picton [mailto:ch...@ecntelecoms.com] Sent: Wednesday, November 17, 2010 9:45 PM To: pacema...@clusterlabs.org Subject: Re: [Pacemaker] Stonith Device APC AP7900 On 2010/11/18 1:01 AM, Andrew Daugherity wrote: >>>> In production I am planning to have 2 separate AP7900 units each plugged >>>> into 2 different APC UPS units to achieve that. I would then have the >>>> single node name on each, for each of the 2 PS's on the individual >>>> systems. >> ... >> >> Right, there's currently no way to do a simultaneous reset on two >> distinct fencing devices. > > There is one possible solution to this -- the APC switched PDUs do > support being configured in multicast groups, and you can configure > groups of outlets together, even spanning several PDUs. For example you > could say PDU 1, outlet 1 and PDU 2, outlet 3 are known as "webserver1", > and then tell it to "power cycle webserver1". If it's not already > supported by the stonith agent it shouldn't be too hard to add it -- > APC's syntax is actually documented fairly well. > > The obvious disclaimer is that I haven't tried this myself. I do have a > similar setup, but decided it was easier to use the IPMI stonith agent > (external/ipmi) to control my servers. > I have 'solved' this problem in two ways: 1. I have a pdu fencing script which accepts multiple ip addresses as parameters - it instructs all pdus to turn off the relevant ports 2. I have also created a stonith_multi script which is a wrapper which calls multiple stonith devices - in its current incarnation, this only requires success from a single device, but is could easily be modified to require success from all devices. Let me know if either of those sound useful to you, and I can forward them on. Chris _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
