如果因为Pool中Master主机由于某种原因导致失效,会引起整个Pool进入紧急模式,恢复步骤如下:
在成员服务器上输入如下命令
# xe host-emergency-ha-disable (关闭HA)
#xe-toolstack-restart
这些将会关闭成员服务上运行的虚拟机
如果确认原Master主机无法恢复,则需要手工指定Master主机,在要将某一台成员服务器设置成新的Master主机,请在该服务器上输入如下命令:
#xe pool-emergency-transition-to-master
#xe pool-recover-slaves
然后在原来的Master主机上运行如下命令,将其设置为Pool的成员服务器。
#xe pool-emergency-reset-master master-address=<IP ADDRESS of the new master>
如果原Master主机确定崩溃,只能重装,使用原机器名和IP地址重装后无法加入到Pool中,需先清理掉该主机的信息才能添加。使用如下命令删除主机:
#xe pool-eject host uuid=<host_uuid>
UUID的查找,可以通过如下命令进行:
#xe host-list
正常模式下,要切换Master主机,可以使用下列命令:
# xe pool-designate-new-master host-uuid=
————————————————————————————-
以上是转载的部分:
如果要删除xenserver pool中的一个server,先要确保这个server不是master
uuid ( RO) : 51926c54-9cfe-4cad-8b7f-ce8109ef2063
name-label ( RW): xenserver-yefxrjsn
name-description ( RW): Default install of XenServer
uuid ( RO) : 49c7b331-23c6-41d6-a302-b2e7cc685128
name-label ( RW): xenserver-1
name-description ( RW): Default install of XenServer
设置xenserver-yefxrjsn为master,注意uuid
再到xencenter去查看xenserver-1右键已经可以remove了
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