TOPIC:

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#!/bin/bash

# Turn off HA-Lizard HA
XC_FIELD_NAME=ha-lizard-enabled

# Put your POOL_UUID here
POOL_UUID="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
# This is supposed to switch off ha-lizard VM restart
    xe pool-param-set uuid=$POOL_UUID other-config:XenCenter.CustomFields.$XC_FIELD_NAME=false
    echo xe pool-param-set uuid=$POOL_UUID other-config:XenCenter.CustomFields.$XC_FIELD_NAME=false

sleep 10s

###enumerate uuid's of all _running_ VMs in the pool
for VM in `xe vm-list is-control-domain=false power-state=running params=uuid | egrep -o "[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}"`
do
    ###(uncomment following line to perform actual shutdown)
    xe vm-shutdown vm=$VM
    echo xe vm-shutdown vm=$VM
done

sleep 20s

###get uuid of pool master - it must be the very last to shut down
MASTER_UUID=`xe pool-list params=master --minimal`

echo Master is $MASTER_UUID

###enumerate of all xen hosts in the pool except master
for HOST in `xe host-list params=uuid --minimal | egrep -o "[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}"`
do
    if [ $HOST != $MASTER_UUID ]
    then
        ###(uncomment following line to put master in maintenance)
        xe host-disable uuid=$HOST
        echo xe host-disable host=$HOST
sleep 20s

    elif [ $HOST = $MASTER_UUID ]
    then
        ###(uncomment following line to put master in maintenance)
        xe host-disable uuid=$HOST
        echo xe host-disable host=$HOST
    fi
done

sleep 20s

### before we perform the shutdown sequence we turn on again the HA-Lizard HA
### as after restarting the pool we want to have the VM#s running again!!!
        xe pool-param-set uuid=$POOL_UUID other-config:XenCenter.CustomFields.$XC_FIELD_NAME=true
    echo xe pool-param-set uuid=$POOL_UUID other-config:XenCenter.CustomFields.$XC_FIELD_NAME=true

###Shutdown all xen hosts in the pool exept master
for HOST in `xe host-list params=uuid --minimal | egrep -o "[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}"`
do
 if [ $HOST != $MASTER_UUID ]
    then
        ###(uncomment following line to perform actual shutdown)
        xe host-shutdown host=$HOST
        echo xe host-shutdown host=$HOST

sleep 20

###finally shutdown pool master

   elif [ $HOST = $MASTER_UUID ]
    then
        ###(uncomment following line to perform actual shutdown)
        xe host-shutdown host=$HOST
       echo xe host-shutdown host=$HOST
    fi
done
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