To help people testing it, here is what to do in each cluster node. You can test it with ESX/ESXi or vCenter: it should work in both cases.
1) install VMware vSphere CLI, which includes Perl SDK and administrative tools for generating the credentials XML file: http://www.vmware.com/download/download.do?downloadGroup=VCLI41 , 2) put vcenter script attached previously in /usr/lib/stonith/plugins/external/ or wherever the external stonith plugins are. 3) create the credentials file with credstore_admin.pl: /usr/lib/vmware-vcli/apps/general/credstore_admin.pl -s 10.1.1.1 -u myuser -p mypass This should create $HOME/.vmware/credstore/vicredentials.xml . I suggest to copy it at least to /etc cp -p $HOME/.vmware/credstore/vicredentials.xml /etc 4) do the very first testing: VI_SERVER=10.1.1.1 VI_CREDSTORE=/etc/vicredentials.xml HOSTLIST="hostname1=vmname1;hostname2=vmname2" RESETPOWERON=0 /usr/lib/stonith/plugins/external/vcenter gethosts If everything works correctly you should get: hostname1 hostname2 You can even test "reset", "off" and "on" commands, to test (carefully!) the full chain. E.g. VI_SERVER=10.1.1.1 VI_CREDSTORE=/etc/vicredentials.xml HOSTLIST="hostname1=vmname1;hostname2=vmname2" RESETPOWERON=0 /usr/lib/stonith/plugins/external/vcenter reset hostname2 5) test if stonith can see the script: stonith -t external/vcenter -n 6) configure crm. In a 2-node configuration, with no previous stonith entry and with stonith-enabled set to false: crm configure primitive vfencing stonith::external/vcenter params VI_SERVER="10.1.1.1" VI_CREDSTORE="/etc/vicredentials.xml" HOSTLIST="hostname1=vmname1;hostname2=vmname2" RESETPOWERON="0" op monitor interval="60s" crm configure clone Fencing vfencing crm configure property stonith-enabled="true" === I've tested it with VMware vCenter 4.1, the cluster is a 2-node cluster based on Debian 6.0 "Squeeze" with distribution clustering stack: CoroSync 1.2.1 / Pacemaker 1.0.9.1 . Cluster nodes are on different ESXi 4.1 servers. Nhan
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