ORA-00270: error creating archive

Hi,

We received following alert in the Exadata RAC database. Could you please check and provide your suggestion on how to fix this issue?

Summary: oracle:ORA-00270: error creating archive l on ORA-DRM|EVNTLGMN

My findings

SQL> show parameter db_recovery_file_destNAME                                 TYPE        VALUE------------------------------------ ----------- ------------------------------db_recovery_file_dest                string      +RECO_DM01db_recovery_file_dest_size           big integer 1500GSQL> SELECT name, type, total_mb, free_mb, required_mirror_free_mb, usable_file_mb FROM V$ASM_DISKGROUP where name='RECO_DM01';NAME                           TYPE     TOTAL_MB    FREE_MB REQUIRED_MIRROR_FREE_MB USABLE_FILE_MB------------------------------ ------ ---------- ---------- ----------------------- --------------RECO_DM01                      NORMAL   20352960    2781448                  565360        1108044