验证本地 HA 运行情况

如果具有四节点 MetroCluster 配置，则应验证 MetroCluster 配置中的本地 HA 对的运行情况。

1. 在 cluster_A 上，执行双向的故障转移和交还。
   1. 确认已启用存储故障转移：storage failover show

      输出应指示两个节点都可以接管：

      cluster_A::> storage failover show
                                    Takeover
      Node           Partner        Possible State Description
      -------------- -------------- -------- ---------------------------
      controller_A_1 controller_A_2 true     Connected to controller_A_2
      
      controller_A_2 controller_A_1 true     Connected to controller_A_1
      2 entries were displayed.
      
      
      
   2. 从 controller_A_1 接管 controller_A_2：storage failover takeover controller_A_2

      可使用 storage failover show-takeover 命令监控接管操作的进度。
   3. 确认接管已完成：storage failover show

      输出应指示 controller_A_1 处于接管状态，这意味着它已接管其 HA 伙伴：

      cluster_A::> storage failover show
                                    Takeover
      Node           Partner        Possible State Description
      -------------- -------------- -------- -----------------
      controller_A_1 controller_A_2 false    In takeover
      
      controller_A_2 controller_A_1 -        Unknown
      2 entries were displayed.
      
      
      
   4. 交还 controller_A_2：storage failover giveback controller_A_2

      可使用 storage failover show-giveback 命令监控交还操作的进度。
   5. 确认存储故障转移已恢复到正常状态：storage failover show

      输出应指示两个节点都可以接管：

      cluster_A::> storage failover show
                                    Takeover
      Node           Partner        Possible State Description
      -------------- -------------- -------- ---------------------------
      controller_A_1 controller_A_2 true     Connected to controller_A_2
      
      controller_A_2 controller_A_1 true     Connected to controller_A_1
      2 entries were displayed.
      
      
      
   6. 重复上述子步骤，这次从 controller_A_2 接管 controller_A_1。
2. 对 cluster_B 重复上述步骤。