When we get the RMAN-06091 error during operations with RMAN, we need to open a new channel for maintenance.
You can use the following command.
1  | RMAN> allocate channel for maintenance type disk;  | 
After that, whatever we do, we can do it successfully.
 ![]()
Database Tutorials MSSQL, Oracle, PostgreSQL, MySQL, MariaDB, DB2, Sybase, Teradata, Big Data, NOSQL, MongoDB, Couchbase, Cassandra, Windows, Linux 