ORA-19815: WARNING: db_recovery_file_dest_size of 36676042752 bytes is 100.00% used

Fri Mar 29 13:25:48 2013
Errors in file /u01/app/oracle/diag/rdbms/sg01/sgerp5/trace/sgerp5_m000_15862.trc:
ORA-19815: WARNING: db_recovery_file_dest_size of 36676042752 bytes is 100.00% used, and has 0 remaining bytes available.
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You have following choices to free up space from recovery area:
1. Consider changing RMAN RETENTION POLICY. If you are using Data Guard,
   then consider changing RMAN ARCHIVELOG DELETION POLICY.
2. Back up files to tertiary device such as tape using RMAN
   BACKUP RECOVERY AREA command.
3. Add disk space and increase db_recovery_file_dest_size parameter to
   reflect the new space.
4. Delete unnecessary files using RMAN DELETE command. If an operating
   system command was used to delete files, then use RMAN CROSSCHECK and
   DELETE EXPIRED commands.
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show parameter db_recovery_file_dest_size 
 
可以通过修改过db_recovery_file_dest_size，把其值改大些。 
SQL> alter system set db_recovery_file_dest_size=50G scope=spfile; 
重启数据库

set pagesize 53
set linesize 1024
set feedback on
set verify off 
set timing on
set trimout on
set trimspool on


col name  format a12
col quota format 99999999999990.99
col used for 99999999999990.99
col reclaimable format 99999999999990.99
col files format 990.99


SELECT substr(name, 1, 30) name, space_limit AS quota, 
space_used        AS used, 
space_reclaimable AS reclaimable, 
number_of_files   AS files 
FROM v$recovery_file_dest;