Unmounting a physical disk

When a physical disk fails and needs to be removed, you need to first refer to this section to unmount the physical disk on AOC, and then remove the physical disk from the host.

Requirement

• It is not allowed to unmount the boot disk.

• It is not allowed to unmount the last physical disk on a host that contains the metadata partition, system partition, journal partition, or data partition.

• It is not allowed to unmount a physical disk that has encountered I/O block, gone offline, and stopped processing any I/O.

• If you need to unmount a physical disk, the cluster to which the physical disk belongs needs to meet all the following requirements:

  • The cluster has no data recovery in progress;
  • The cluster has no physical disk being unmounted;
  • The available cache capacity in the cluster is sufficient to carry the data of the cache partition of the physical disk;
  • The available storage capacity in the cluster is sufficient to carry the data of the data partition of the physical disk;
  • The available capacity for volume pinning in the cluster is sufficient to carry the data of the pinned volumes on the physical disk.

Procedure

1. On the Physical disk page of AOC, click the ellipsis (...) to the right of the physical disk to be removed in the physical disk list, and select Unmount.

2. In the pop-up Unmount disk dialog box, confirm the physical disk to be unmounted and the host on which it is currently mounted based on the basic information of the physical disk, and click Unmount.