RMAN: Archivelogs lost

Problem: I have lost some of the archivelog files without taking backup. If I run the rman to backup available archive logs, it throws error that the archivelog_seq# is not available.

Solution: run the following command.

RMAN> change archivelog all validate;

Now you run the backup archivelog command. RMAN will backup the available archivelogs successfully.

Thanks