mc admin decommission

The mc admin decommission command starts the decommissioning process for a AIStor server pools. Decommissioning is designed for removing an older server pool whose hardware is no longer sufficient or performant compared to the pools in the deployment. AIStor automatically migrates data from the decommissioned pool to the remaining pools in the deployment based on the ratio of free space available in each pool.

See Decommission Server Pools for a complete procedure on decommissioning a server pool.

mc admin [GLOBALFLAGS] decommission start|status|cancel ALIAS TARGET

Required

Starts the decommissioning process for the server pool specified to TARGET.

Requires specifying TARGET

Required

Returns the decommissioning status of all server pools on the specified ALIAS:

• Active - The pool is active and not scheduled for decommissioning.
• Draining - The pool is currently decommissioning.
• Draining (Failed) - The decommissioning process failed and requires manually restart.
• Draining (Cancelled) - The decommissioning process was manually cancelled.

If the command includes a TARGET, the command output includes the rate of data migration if decommissioning is in progress.

Required

Cancels an ongoing decommissioning process on the pool specified to TARGET.

Requires specifying TARGET.

Cancelling a decommissioning process does not return the pool to an active state. You must eventually complete the decommissioning process and remove the pool from the deployment. You can resume the process by running mc admin decommission start again against the pool.

Required

The alias of the AIStor deployment on which to start the decommissioning process.

The full description of the server pool on which the command operates. For example:

https://minio-{01...04}.example.net:9000/mnt/disk{1...4}

This command supports any of the global flags.

See Decommission Server Pools for a complete procedure on decommissioning a server pool.