You may also use a Oracle command oerr to check out what the error is all about. oerr is only available on the Linux and Unix platforms.

You may also use a Oracle command oerr to check out what the error is all about. oerr is only available on the Linux and Unix platforms.

oracle@xps:~$ oerr ora 19809
19809, 00000, "limit exceeded for recovery files"
//*Cause: The limit for recovery files specified by the
//        DB_RECOVERY_FILE_DEST_SIZE was exceeded.
//*Action:The error is accompanied by 19804. See message 19804 for further
//        details.

oracle@xps:~$ oerr ora 19804
19804, 00000, "cannot reclaim %s bytes disk space from %s limit"
// *Cause: Oracle cannot reclaim disk space of specified bytes from the
//         DB_RECOVERY_FILE_DEST_SIZE limit.
// *Action: There are five possible solutions:
//          1) Take frequent backup of recovery area using RMAN.
//          2) Consider changing RMAN retention policy.
//          3) Consider changing RMAN archivelog deletion policy.
//          4) Add disk space and increase DB_RECOVERY_FILE_DEST_SIZE.
//          5) Delete files from recovery area using RMAN.