ORA-00314 - Restoring from Cold Backup. ( Redologs on Raw Disk startup)

Question

Greetings,
We're running Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production ( Solaris Sparc )
we've recently switched to redologs on raw disks to improve DB write performance. Have taken a cold backup of db , But db denies to open normally after restoration.
Any ideas what could be wrong? and how to fix this?
TIA,
SQL> startup;
ORACLE instance started.
Total System Global Area 1.0737E+10 bytes
Fixed Size 1996520 bytes
Variable Size 3640658200 bytes
Database Buffers 7063207936 bytes
Redo Buffers 31555584 bytes
Database mounted.
ORA-00314: log 1 of thread 1, expected sequence# doesn't match
ORA-00312: online log 1 thread 1: '/dev/rdsk/c1t4d0s3'
ORA-00312: online log 1 thread 1: '/dev/rdsk/c1t5d0s3'

Answer 1

Try this ..
First i create a backup of control file:
SQL> alter database backup controlfile to trace;
Database altered.
Then i check udump directory. There are some trace files To find out which one contains control file, i simply make a text search :
testdb oracle@aurora:/data06/app/oracle/admin/testdb/udump> grep 'CREATE CONTROLFILE REUSE DATABASE' *.*
testdb_ora_181267.trc:CREATE CONTROLFILE REUSE DATABASE "testdb" NORESETLOGS NOARCHIVELOG
testdb_ora_181267.trc:CREATE CONTROLFILE REUSE DATABASE "testdb" RESETLOGS NOARCHIVELOG
I execute the commands which is included with CREATE CONTROLFILE REUSE DATABASE
SQL> startup nomount
ORACLE instance started.
Total System Global Area 314572800 bytes
Fixed Size 1302944 bytes
Variable Size 106700384 bytes
Database Buffers 205520896 bytes
Redo Buffers 1048576 bytes
SQL> CREATE CONTROLFILE REUSE DATABASE "testdb" RESETLOGS NOARCHIVELOG
2 MAXLOGFILES 4
3 MAXLOGMEMBERS 4
4 MAXDATAFILES 1000
5 MAXINSTANCES 1
6 MAXLOGHISTORY 4544
7 LOGFILE
8 GROUP 1 '/data07/oradata/testdb/redo01.log' SIZE 50M,
9 GROUP 2 '/data07/oradata/testdb/redo02.log' SIZE 50M,
10 GROUP 3 '/data07/oradata/testdb/redo03.log' SIZE 50M
11 DATAFILE
12 '/data07/oradata/testdb/system01.dbf',
13 '/data07/oradata/testdb/undo01.dbf',
14 '/data07/oradata/testdb/sysaux01.dbf',
15 '/data07/oradata/testdb/users01.dbf',
16 '/data07/oradata/testdb/data01.dbf',
17 '/data07/oradata/testdb/work01.dbf',
18 '/data07/oradata/testdb/ascs01.dbf',
19 '/data07/oradata/testdb/uccs_data01.dbf',
20 '/data07/oradata/testdb/uccs_index01.dbf'
21 CHARACTER SET WE8ISO8859P9
22 ;
Control file created.
Then recover db.
SQL> RECOVER DATABASE USING BACKUP CONTROLFILE