bash-3.00$ sqlplus / AS SYSDBA
SQL*Plus: Release 11.2.0.1.0 Production on Wed Jun 1 18:02:57 2011
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup nomount
ORACLE instance started.
Total System Global Area 6396977152 bytes
Fixed Size 2222960 bytes
Variable Size 3338667152 bytes
Database Buffers 3036676096 bytes
Redo Buffers 19410944 bytes
SQL> show parameter db_recovery_file_dest_size
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_recovery_file_dest_size big integer 3882M
SQL> alter system set db_recovery_file_dest_size=4882M scope=spfile;
System altered.
SQL> shutdown
ORA-01507: database not mounted
ORACLE instance shut down.
SQL> startup
ORACLE instance started.
Total System Global Area 6396977152 bytes
Fixed Size 2222960 bytes
Variable Size 3338667152 bytes
Database Buffers 3036676096 bytes
Redo Buffers 19410944 bytes
Database mounted.
ORA-03113: end-of-file on communication channel
Process ID: 1017
Session ID: 421 Serial number: 5
SQL>