How to fix the Oracle error RMAN-06056: could not access datafile number?

In this post, you’ll learn more about the Oracle ErrorRMAN-06056: could not access datafile number with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

RMAN-06056: could not access datafile number

Reason for the Error RMAN-06056: could not access datafile number

A backup or copy could not proceed because the datafile header could not be read or the header was not valid.

How to fix the Error RMAN-06056: could not access datafile number ?

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

Make the datafile accessible or skip it.