Dell PowerVault ME4 Series Storage System CLI Guide

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remove disk-groups


Description	Removes specified disk groups. CAUTION: If your system gets into a state where a virtual disk group is quarantined or offline or does not have a corresponding pool, contact technical support. Deleting a linear disk group will delete all data it contains. If a specified disk group has a job running, such as media scrub, the command will prompt for confirmation to stop the job. For a linear disk group, if the group contains volumes, the command will prompt for confirmation to delete the volumes. If the reply is yes, the command will unmap and delete all volumes in the group, delete the group and corresponding pool, and make all the disks available. If the reply is no, the command will be canceled. For a virtual disk group, if the group contains no volume data, the group will be removed. If the group contains volume data, the command will initiate removal and try to drain (move) all volume data to other groups in the same pool. While data is being drained, the group's status will be VDRAIN. If the pool does not have enough space to contain the volume data, the command will immediately fail with an error. If draining begins and is successful, an event will be logged and the group will be removed. If draining begins but hosts continue to write new data to the volumes and cause amout-of-space condition, the command will fail and an event will be logged. NOTE:Disk group removal (draining) can take a very long time depending on a number of factors in the system, including but not limited to: large pool configuration; the amount of I/O traffic to the system (e.g., active I/O pages to the draining disk group); the type of the disk group page migration (enterprise SAS, midline SAS, SSD); the size of the draining disk group(s) in the system; and the number of disk groups draining at the same time. If you remove the last disk group in a virtual pool, the command will prompt for confirmation to remove the pool, too. If the reply is yes, the pool will be removed. If the reply is no, the disk group and the pool will remain. In one command you can delete linear and virtual disk groups, and disk groups from more than one pool. NOTE: You cannot remove the last disk group from the only pool in a system that is used in a peer connection, or a disk group that contains a volume that is used in a replication set. If you delete a quarantined disk group and its missing disks are later found, the group will reappear as quarantined or offline and you must delete it again (to clear those disks).
Minimum role	manage
Syntax	remove disk-groups [prompt yes\|no] `disk-groups`
Parameters	prompt yes\|no Optional. For scripting, this specifies an automatic reply to confirmation prompts: yes: Allow the command to proceed. no: Cancel the command. If this parameter is omitted, you must manually reply to prompts. disk-groups A comma-separated list of the names or serial numbers of the disk groups to delete. A name that includes a space must be enclosed in double quotes.
Examples	Remove disk groups dg1 and dg2. # remove disk-groups dg1,dg2
See also	delete pools delete vdisks show disk-groups show vdisks