On 27 October 2010 14:09, Vadym Chepkov <vchep...@gmail.com> wrote: > [...snip...]
>> > Hold on a sec, are you using clone on AP7901? Does it support multiple >> > connections? Mine it doesn't. >> >> Then it's useless regardless clone or not, you have to have multiple >> instances, because server can't reliable fence itself, right? >> >> > > My understanding is/was that I need to have one resource running on 1 of the > 3 nodes in the cluster and if a fence event has to be triggered then > pacemaker will send to it to the one stonith resource. I am planning to test > that the coming days.[1] > Am I right? if not then I have to buy a different PDU! :-( > > My understanding is you have to have a fencing device for each of your > hosts. Are you sure one connection limitation applies for SNMP? Most likely > it's only for tcp sessions - ssh/http ? Valid point Vadym, SNMP is over UDP so conntionless communication. I am wondering how i can test this - if cloning works on this PDU. > If you look into rackpdu log you will see this: > Oct 19 12:39:00 xen-11 stonithd: [8606]: debug: external_run_cmd: Calling > '/usr/lib64/stonith/plugins/external/rackpdu gethosts' > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: external_run_cmd: > '/usr/lib64/stonith/plugins/external/rackpdu gethosts' output: xen-11 xen-12 > Outlet_3 Outlet_4 Outlet_5 Outlet_6 Outlet_7 Outlet_8 > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: external_hostlist: running > 'rackpdu gethosts' returned 0 > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: external_hostlist: rackpdu > host xen-11 > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: external_hostlist: rackpdu > host xen-12 > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: external_hostlist: rackpdu > host Outlet_3 > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: external_hostlist: rackpdu > host Outlet_4 > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: external_hostlist: rackpdu > host Outlet_5 > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: external_hostlist: rackpdu > host Outlet_6 > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: external_hostlist: rackpdu > host Outlet_7 > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: external_hostlist: rackpdu > host Outlet_8 > Oct 19 12:39:01 xen-11 stonithd: [8606]: debug: remove us (xen-11) from the > host list for pdu:0 > check the last line - the agent is smart enough to know it can't fence > itself. > Vadym >
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