SQL> startup
ORACLE instance started.

Total System Global Area  535662592 bytes
Fixed Size                  1334380 bytes
Variable Size             507511700 bytes
Database Buffers           20971520 bytes
Redo Buffers                5844992 bytes
Database mounted.
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: 'D:\APP\ORACLE\ORADATA\ORCL\REDO01.LOG'

<msg time='2010-06-11T15:01:42.875+05:30' org_id='oracle' comp_id='rdbms'
 msg_id='opiexe:2986:2780954927' client_id='' type='NOTIFICATION'
 group='admin_ddl' level='16' host_id='JNET62'
 host_addr='192.168.1.93' module='sqlplus.exe' pid='4572'>
 <txt>ORA-313 signalled during: ALTER DATABASE OPEN...
 </txt>
</msg>
<msg time='2010-06-11T15:01:43.564+05:30' org_id='oracle' comp_id='rdbms'
 client_id='' type='UNKNOWN' level='16'
 host_id='JNET62' host_addr='192.168.1.93' module='MMON_SLAVE'
 pid='5732'>
 <txt>Errors in file d:\app\oracle\diag\rdbms\orcl\orcl\trace\orcl_m000_5732.trc:
ORA-00313: open failed for members of log group 1 of thread 1
ORA-00312: online log 1 thread 1: &apos;D:\APP\ORACLE\ORADATA\ORCL\REDO01.LOG&apos;
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
 </txt>
</msg>
<msg time='2010-06-11T15:01:46.853+05:30' org_id='oracle' comp_id='rdbms'
 msg_id='dbkh_generate_new_failure_alert:2592:3311820762' client_id='' type='ERROR'
 group='DRA' level='1' host_id='JNET62'
 host_addr='192.168.1.93' module='MMON_SLAVE' pid='5732'>
 <txt>Checker run found 2 new persistent data failures
 </txt>
</msg>
<msg time='2010-06-11T15:16:35.532+05:30' org_id='oracle' comp_id='rdbms'
 client_id='' type='UNKNOWN' level='16'
 host_id='JNET62' host_addr='192.168.1.93' module=''
 pid='2868'>
 <txt>db_recovery_file_dest_size of 2048 MB is 64.71% used. This is a
 </txt>
</msg>
<msg time='2010-06-11T15:16:35.532+05:30' org_id='oracle' comp_id='rdbms'
 client_id='' type='UNKNOWN' level='16'
 host_id='JNET62' host_addr='192.168.1.93' module=''
 pid='2868'>
 <txt>user-specified limit on the amount of space that will be used by this
 </txt>
</msg>
<msg time='2010-06-11T15:16:35.532+05:30' org_id='oracle' comp_id='rdbms'
 client_id='' type='UNKNOWN' level='16'
 host_id='JNET62' host_addr='192.168.1.93' module=''
 pid='2868'>
 <txt>database for recovery-related files, and does not reflect the amount of
 </txt>
</msg>
<msg time='2010-06-11T15:16:35.532+05:30' org_id='oracle' comp_id='rdbms'
 client_id='' type='UNKNOWN' level='16'
 host_id='JNET62' host_addr='192.168.1.93' module=''
 pid='2868'>
 <txt>space available in the underlying filesystem or ASM diskgroup.
 </txt>
</msg>

CONTROL01.CTL
CONTROL02.CTL
CONTROL03.CTL

REDO02.LOG
REDO03.LOG
REDO04A.LOG
REDO05A.LOG
REDO06A.LOG
REDO07A.LOG

SYSAUX01.DBF
SYSTEM01.DBF
TEMP01.DBF
UNDOTBS01.DBF
USERS01.DBF
DMTBLSP01.DBF
RCVCAT01.DBF