Chapter 6. Storage pools 239
To remove an MDisk from a storage pool with the CLI, use rmmdisk. You must use the -force 
parameter if you need to migrate volume extents to other MDisks in a storage pool.
The command fails if you don’t have enough available capacity remaining in the storage pool 
to allocate the data that you are migrating from the removed array.
Dependent Volumes
Volumes are entities that are made of extents from a storage pool. The extents of the storage 
pool come from various MDisks. A volume can then be spread over multiple MDisks, and 
MDisks can serve multiple volumes. Clicking the Dependent Volumes menu item of an 
MDisk lists volumes that use extents that are stored on this particular MDisk.
You can get the same information with the CLI command lsdependentvdisks.