How to fix the Oracle error RMAN-05503: at least one auxiliary channel must be allocated to execute this command?

In this post, you’ll learn more about the Oracle ErrorRMAN-05503: at least one auxiliary channel must be allocated to execute this command with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

RMAN-05503: at least one auxiliary channel must be allocated to execute this command

Reason for the Error RMAN-05503: at least one auxiliary channel must be allocated to execute this command

No auxiliary channels were allocated.

How to fix the Error RMAN-05503: at least one auxiliary channel must be allocated to execute this command ?

You can fix this error in Oracle by following the below steps

Allocate an auxiliary channel.