Removing Volumes

You can remove a volume using MCS and the CLI.

Note: When you remove a volume enabled for:

Cold tiering, the directory/folder for the volume in the metadata volume associated with the tier is also removed asynchronously.
Warm tiering, the directory/folder for the volume in the metadata volume associated with the tier and the erasure-coded volume are also removed asynchronously.

Removing Volumes Using the MapR Control System

To remove one or more volumes, in the Summary tab under Data > Volumes:

Select the volumes to remove from the list of volumes in the Volumes pane.
Click Remove Volume(s) from the Actions dropdown menu.
The Remove Volume(s) confirmation dialog displays.
Choose one of the following:
- Remove gracefully — Specifies whether to check for dependencies before removing the volume. If the volume has dependencies, such as associated snapshots, the volume will not be deleted, but an alarm will be raised.
  Note: Volume will not be deleted if mirroring is in progress as the mirror volume is synchronized from a hidden internal snapshot of the source volume.
- Remove completely — Indicates that volume must be removed forcefully, even if the volume has dependencies.
Click Remove Volume.
The selected volumes are removed.

To remove a standard volume from the volume information page:

Select Remove Volume(s) from the Select an Action dropdown list.
The Remove Volume(s) confirmation dialog displays.
Choose one of the following:
- Remove gracefully — Specifies whether to check for dependencies before removing the volume. If the volume has dependencies, such as associated snapshots, the volume will not be deleted, but an alarm will be raised.
  Note: Volume will not be deleted if mirroring is in progress as the mirror volume is synchronized from a hidden internal snapshot of the source volume.
- Remove completely — Indicates that volume must be removed forcefully, even if the volume has dependencies.
Click Remove Volume.

To remove a mirror volume from the volume information page:

Select Remove Volume from the Select an Action dropdown list.
The Remove Volume confirmation dialog displays.
Choose one of the following:
- Remove gracefully — Specifies whether to check for dependencies, such as associated snapshots, before removing the volume. If mirroring is in progress, the volume will not be deleted as the mirror volume is synchronized from a hidden internal snapshot of the source volume; however, an alarm will be raised.
- Remove completely — Indicates that volume must be removed forcefully, even if the volume has dependencies.
Click Remove Volume.

The basic command to remove a volume is:

maprcli volume remove -name <volume name>

For complete reference information, see volume remove.