数据库启动报ORA-03113错误

ORACLE instance started.
Total System Global Area 5.3447E+10 bytes
Fixed Size                  2265864 bytes
Variable Size            6576671992 bytes
Database Buffers         4.6842E+10 bytes
Redo Buffers               26480640 bytes
Database mounted.
ORA-03113: end-of-file on communication channel
Process ID: 257589
Session ID: 2761 Serial number: 3

Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl/trace/orcl_arc0_242124.trc:
ORA-19815: WARNING: db_recovery_file_dest_size of 4385144832 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.
**************************************

alter system set db_recovery_file_dest_size=2048G scope=spfile;