#先開啟pool的auto_poweron
xe pool-list
xe pool-param-set uuid=UUID other-config:auto_poweron=true


#設定單臺VM自啟動
xe vm-param-set uuid=UUID other-config:auto_poweron=true

#設定所有VM自啟動
for i in `xe vm-list params=uuid --minimal | sed 's/,/ /g'`;do xe vm-param-set uuid=$i other-config:auto_poweron=true;done



#取消所有VM的自啟動
for i in `xe vm-list params=uuid --minimal | sed 's/,/ /g'`;do xe vm-param-remove uuid=$i param-name=other-config param-key=auto_poweron;done