ITRemote

SELECT * FROM V$RECOVERY_FILE_DEST;

NAME            SPACE_LIMIT SPACE_USED SPACE_RECLAIMABLE NUMBER_OF_FILES
--------------  ----------- ---------- ----------------- ---------------
/mydisk/rcva     5368709120 109240320             256000              28

SQL> show parameter db_recovery


NAME                                 TYPE        VALUE
-------------------------------- ----------- ------------------------------
db_recovery_file_dest                string      /opt/oracle/test01/flash_recovery_area
db_recovery_file_dest_size           big integer 10G

Command for changing db_recovery_file_dest

SQL> alter system set db_recovery_file_dest='/opt/oracle/test01/dbs/arch' scope=both;
System altered.