如何删除POOL中异常挂掉XenServer的成员

鹰擊长空

How to Remove a XenServer Slave when it No Longer Exists in the PoolDocument ID: CTX126382   /           Created On: 2010-8-19   /           Updated On: 2012-3-10
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Summary

XenCenter shows the red icon of the XenServer Slave that no longer exists in the pool. You want to eliminate that XenServer Slave but you receive the error message below when you issue the command from XenServer Master xe host-forget of that Slave.

“This host cannot be forgotten because there are some user VMs still running

host: 58ee6a78-c20c-4069-b07d-0b092e15fc1c (XS2)

The XenServer Master’s database still has the list of the virtual machines from Slave, but in the reality, the Slave no longer exists. You need to shutdown the virtual machines first to be able to forget the Slave from the pool.

Procedure

• Run the following command:
  xe host-list
  
  

• The slave that you want to eliminate is XS2 with UUID 58ee6a78-c20c-4069-b07d-0b092e15fc1c. You want to find the virtual machines still running on the Slave:
  xe vm-list resident-on=58ee6a78-c20c-4069-b07d-0b092e15fc1c
  
  

• The two virtual machines that you need to shut down are Storage Link and NetScaler Virtual Appliance. Run the following commands:
  xe vm-reset-powerstate uuid=603432e2-c85c-42fa-7bcd-430ddef6688a –force
  xe vm-reset-powerstate uuid=062a61b6-0ee3-9383-adf9-e2a506e5e3be –force
  
• It is now safe to forget the Slave. Run the following command:
  xe host-forget uuid=58ee6a78-c20c-4069-b07d-0b092e15fc1c
  
• Go to XenCenter, the slave XS2 is no longer there.
  
  

This document applies to:

• XenServer 5.5
• XenServer 5.6
  

以上内容来自于Citrix官网：http://support.citrix.com/article/CTX126382

鹰擊长空

补充：
北京-凡尘<bijiafeng@sina.com>  
你先在master的console中运行
1.xe host-list   列出server的UUID
2.xe vm-list resident-on=yourserveruuid     列出这个server上的设备（存储、虚机等，一般是存储居多）
3.xe vm-reset-powerstate uuid=uuid -force    重置该server链接的设备,有几个重置几个(这里uuid是你链接的设备的)
4.xe host-forget uuid=yourserveruuid      踢出pool中死掉的server

考虑：
1.第三步中用此命令xe vm-reset-powerstate force=true vm=<vm name>是否可行为探究（感谢 @上海-剑心 提供）；
2.是否可用service xapi restart替代以上四部曲，有待考证（感谢 @北京-太子 提供）。

bijiafeng

1.xe host-list   # 列出主机信息
2.xe vm-list resident-on=<host-uuid>   # 列出主机上设备、VM信息
3.xe vm-reset-powerstate uuid=<dev-uuid> -force  # 重置主机连接的设备，这里的dev-uuid是设备的uuid
4.xe pool-eject host uuid=<host-uuid> （xe host-forget uuid=<host-uuid>）  # 删除要移除的主机uuid

如果XenServer本地存储上有数据先用xe vm-copy复制到共享存储。
参考：https://bbs.bijiafeng.com/thread-1290-1-1.html