移除當掉的Xenserver

1.找出當掉的Xenserver的uuid
#xe host-list

2.列出當機前執行中的vm
#xe vm-list resident-on=host_uuid is-control-domain=false

3.強制將上列vm設為關機狀態
#for vm in `xe vm-list resident-on=host_uuid is-control-domain=false|grep uuid|awk'{print $5}'`; do xe vm-reset-powerstate uuid=$vm --force; done;

4.移除當機的Xenserver
#xe host-forget uuid=host_uuid --force