初始化节点后、如果未取消加入、则无法从集群中取消加入节点

适用场景

• ONTAP 9.10.1及更早版本
• 四节点集群

问题描述

在四节点集群的特定情况下：

• 擦除节点及其HA配对节点或以不同方式删除节点、而不首先断开连接
• 如果未在其余两个节点中的任何一个节点上放置Epsilon、则集群仲裁可能会丢失
• 随后 尝试退出这些节点将失败、 并显示以下错误：

::*> cluster unjoin -node Cluster-node-3 -force
 
Warning: This command will forcibly unjoin node "Cluster-node-3" from the
         cluster. You must unjoin the failover partner as well. This will
         permanently remove from the cluster any volumes that remain on that
         node and any logical interfaces with that node as the home-node.
         Contact support for additional guidance.
Do you want to continue? {y|n}: y
[Job 615] Checking prerequisites
Error: command failed: [Job 615] Job failed: This command requires that
       management services be online on at least 3 of the 4 eligible nodes,
       excluding "Cluster-node-3". Currently, there are only 2 healthy nodes
       after excluding "Cluster-node-3". Please repair the unhealthy nodes, and
       reissue the command.