On Mon, May 14, 2018 at 8:13 PM, Shawn Southern <shawn.southern@entegrus.com> wrote:

I'm now using Intel AMT and the wsmancli package to reboot/power off/power on my entry level systems... but now I want oVirt to use this for fencing.

I created 3 xml files: powercycle.xml (uses PowerState 10), poweron.xml (uses PowerState 2) and poweroff.xml (uses PowerState 8).  Here is the poweroff.xml file:
<p:RequestPowerStateChange_INPUT xmlns:p="http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_PowerManagementService">
  <p:PowerState>8</p:PowerState>
  <p:ManagedElement xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing"
            xmlns:wsman="http://schemas.dmtf.org/wbem/wsman/1/wsman.xsd">
    <wsa:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</wsa:Address>
    <wsa:ReferenceParameters>
      <wsman:ResourceURI>http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_ComputerSystem</wsman:ResourceURI>
      <wsman:SelectorSet>
        <wsman:Selector Name="CreationClassName">CIM_ComputerSystem</wsman:Selector>
        <wsman:Selector Name="Name">ManagedSystem</wsman:Selector>
      </wsman:SelectorSet>
    </wsa:ReferenceParameters>
  </p:ManagedElement>
</p:RequestPowerStateChange_INPUT>

I can then reboot or power on/off the server with:
wsman invoke -a RequestPowerStateChange http://schemas.dmtf.org/wbem/wscim/1/cim-schema/2/CIM_PowerManagementService -h [AMT IP] -P 16992 -u admin -p [amt password] -J /fencing/poweron.xml  (or poweroff.xml, etc).

My question is, how do I move from this to using this for fencing in oVirt?

​At the moment oVirt doesn't officially support AMT as fence agent. But I've just looked that on CentOS 7 we already have fence-agents-amt-ws package, so please try to install fence-agents-amt-ws package and test if it's working for your server​.

​Yes, should work

Regards

Martin

[1] https://www.ovirt.org/develop/developer-guide/engine/custom-fencing/

Thanks!
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Martin Perina
Associate Manager, Software Engineering
Red Hat Czech s.r.o.