VPLEX：如何拆卸和重新连接mirror（leg）

Before detaching or attaching a mirror, ensure you identify the correct leg and cluster name.

1. 在阵列上运行数组重新发现，以确保我们看到数组的最新状态

   Run an array rediscover on the array to ensure that we are seeing the latest status of the array.

1. 运行 show-use-hierarchy 以确定虚拟卷是否在一致性组中，是否必须将其删除。（不能对一致性组中的虚拟卷进行任何更改）

   Run show-use-hierarchy to determine if the virtual-volume is within a consistency-group and must be removed. (No changes can be made on a virtual-volume within a consistency-group)

1. 使用以下命令从一致性组中删除虚拟卷。

   Remove the virtual-volume from the consistency group using the below command.

1. 重新运行 show-use-hierarchy 以确认卷不再位于一致性组中，以便我们可以继续操作。

   Rerun show-use-hierarchy to confirm that the volume is no longer in a consistency-group so that we can proceed further.

1. 现在，我们可以使用以下命令从分布式设备 （test_DR1_vol） 中删除分布式设备组件/镜像支路 （local_device_C2_DR1_leg）。如果如下所示成功分离镜像，请转到步骤 7。但是，如果由于错误“无法删除镜像，因为这会导致与现有的失败者设置冲突”而导致分离镜像失败，请转到步骤 6。

   We can now remove the distributed-device-component/mirror leg (local_device_C2_DR1_leg) from the distributed-device (test_DR1_vol) by using the below command. If detaching mirror was successful like below, go to step 7. However, if detaching the mirror fails due to error "can't remove mirror as this would lead to conflict with existing loser settings," go to step 6.

• Always run the device detach at distributed-device level using the flag --device and then specify the distributed-device-component to detach using the flag --mirror.

• Use the flag --discard in order to prevent a virtual-volume to be automatically created on top of the distributed-device-component/mirror which we are detaching.

• Use the flag --force to skip any prompts.

1. 如果由于与现有失败者设置冲突而在尝试分离镜像时收到错误，则必须首先更改分离规则集名称，以将对方集群作为获胜者。如果成功拆卸后视镜支腿，则可以跳过此步骤。

   If you have received an error when attempting to detach the mirror due to conflicts with existing loser settings, you must first change the detach rule-set-name to have the opposing cluster as the winner. This step can be skipped if detaching the mirror leg was successful.

1. 重新运行 show-use-hierarchy 以验证是否已成功删除 distributed-device-component/mirror。

   Rerun show-use-hierarchy to verify that the distributed-device-component/mirror has been removed successfully.

1. 现在，我们可以将之前分离的支路再次重新连接到分布式设备（这将自动触发完全重建）。We can now reattach the previously detached leg again to the distributed-device (this will automatically trigger a full rebuild).

1. 重新运行 show-use-hierarchy 以验证分布式设备组件/镜像是否已成功重新连接。

   Rerun show-use-hierarchy to verify that the distributed-device-component/mirror has been reattached successfully.

1. 检查重建状态。此输出显示重新生成完成的时间长度、完成的百分比和吞吐量值 （M/s）。

   Check the rebuild status. The output from this displays the length of time for the rebuild to complete, the percentage finished, and the throughput value (M/s).

   
   

1. 将虚拟卷重新添加回原始一致性组，如下所示。

   Readd the virtual-volume back to the original consistency-group like below.

   
   

1. 重建完成后，最后一次运行 show-use-hierarchy，以确认两个镜像支路再次正常运行。（正常运行的卷不会输出次要故障、重大故障或严重故障。)

   Run show-use-hierarchy one last time once rebuilds have finished to confirm that both mirror legs are healthy once again. (Healthy volumes will not output minor-failure, major-failure, or critical-failure.)