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diff --git a/doc/stonith/README.vcenter b/doc/stonith/README.vcenter new file mode 100644 index 0000000..e6cc9a5 --- /dev/null +++ b/doc/stonith/README.vcenter @@ -0,0 +1,90 @@ +VMware vCenter/ESX STONITH Module +================================= + +1. Intro +-------- + +VMware vCenter/ESX STONITH Module is intended to provide STONITH support to +clusters in VMware Virtual Infrastructures. It is able to deal with virtual +machines running on physically different HostSystems (e.g. ESX/ESXi) by using +VMware vSphere Web Services SDK http://www.vmware.com/support/developer/vc-sdk/ +and connecting directly on each HostSystem or through a VMware vCenter: in this +last case the module locates the specified virtual machine in the Virtual +Infrastructure and performs actions required by cluster policies. + +2. Software requirements +------------------------ + +VMware vSphere CLI, which includes both CLI tools and Perl SDK +http://www.vmware.com/support/developer/vcli/ . The plugin has been tested with +version 4.1 http://www.vmware.com/download/download.do?downloadGroup=VCLI41 + + +3. vCenter/ESX authentication settings +-------------------------------------- + +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 +Copy it to a system folder, e.g. /etc + +cp -p $HOME/.vmware/credstore/vicredentials.xml /etc + + +4. Testing +---------- + +The plugin can be invoked directly to perform a very first connection test +(replace all the provided sample values): + +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 + +When invoked in this way, the plugin connects to VI_SERVER, authenticates with +credentials stored in VI_CREDSTORE and tries to retrieve the list of virtual +machines (case insensitive) matching vmname1 and vmname2 (and any other listed). +When finished, it reports the list back by mapping virtual machine names to +hostnames as provided in HOSTLIST. If you see the full list of hostnames as a +result, then everything is going well. If otherwise you are having a partial or +empty list, you have to check parameters. + +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 + +In the above examples the referring infrastructure is a vCenter with several +ESXi nodes. Server IP and credentials are referred to vCenter. + +5. CRM configuration +-------------------- + +The following is a sample procedure to setup STONITH for an HA 2-node cluster +(replace all the provided sample values): + +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" + + + |