Oracle Error RMAN-06091: no channel allocated for maintenance (of an appropriate type)

Oracle Error Message

RMAN-06091: no channel allocated for maintenance (of an appropriate type)

Reason for the Error

A command was entered that requires a maintenance channel, and no maintenance channel is allocated, or none of the appropriate type.

Solution

Use ALLOCATE CHANNEL FOR MAINTENANCE before deleting backup pieces, or using the CROSSCHECK or DELETE EXPIRED commands. Proxy copies require a non-DISK channel.