How to fix the Oracle error RMAN-12017: could not locate pieces of backup set key string?

In this post, you’ll learn more about the Oracle ErrorRMAN-12017: could not locate pieces of backup set key string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

RMAN-12017: could not locate pieces of backup set key string

Reason for the Error RMAN-12017: could not locate pieces of backup set key string

Copies of the specified backup set key could not be accessed on any of the allocated channels.

How to fix the Error RMAN-12017: could not locate pieces of backup set key string ?

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

Allocate additional channels on other nodes of the cluster or, if the backup pieces has been deleted, use the CROSSCHECK BACKUP command to correct the recovery catalog or target database control file entries.