ORA-01578 during startup

Question

Hi all;
I have 9i database (9.2.0.7.0) instance on Windows XP. When I starting up the instance, I have an error like following and instance not open.
ORA-01578: Oracle data block corrupted (file#2, block#121)
ORA-01110: data file 2: 'C:\oracle\oradata\orcl\undotbs01.dbf'
Unfortunately I have no backup. What can I do to solve this problem?

Answer 1

My createcfile.sql including following commands:
STARTUP NOMOUNT
CREATE CONTROLFILE REUSE DATABASE "ORCL" NORESETLOGS  NOARCHIVELOG
--  SET STANDBY TO MAXIMIZE PERFORMANCE
MAXLOGFILES 50
MAXLOGMEMBERS 5
MAXDATAFILES 100
MAXINSTANCES 1
MAXLOGHISTORY 226
LOGFILE
GROUP 1 'C:\ORACLE\ORADATA\ORCL\REDO01.LOG'  SIZE 100M,
GROUP 2 'C:\ORACLE\ORADATA\ORCL\REDO02.LOG'  SIZE 100M,
GROUP 3 'C:\ORACLE\ORADATA\ORCL\REDO03.LOG'  SIZE 100M
-- STANDBY LOGFILE
DATAFILE
+'C:\ORACLE\ORADATA\ORCL\SYSTEM01.DBF',+
+'C:\ORACLE\ORADATA\ORCL\UNDOTBS01.DBF',+
+'C:\ORACLE\ORADATA\ORCL\CWMLITE01.DBF',+
+'C:\ORACLE\ORADATA\ORCL\DRSYS01.DBF',+
+'C:\ORACLE\ORADATA\ORCL\EXAMPLE01.DBF',+
+'C:\ORACLE\ORADATA\ORCL\INDX01.DBF',+
+'C:\ORACLE\ORADATA\ORCL\ODM01.DBF',+
+'C:\ORACLE\ORADATA\ORCL\TOOLS01.DBF',+
+'C:\ORACLE\ORADATA\ORCL\USERS01.DBF',+
+'C:\ORACLE\ORADATA\ORCL\XDB01.DBF',+
+'C:\ORA9DB\TSPACE\MUHDTA01.DBS',+
+'C:\ORA9DB\TSPACE\MUHIDX01.DBS',+
+'C:\ORA9DB\TSPACE\SISTEM01.DBS',+
+'C:\ORA9DB\TSPACE\STKDTA01.DBS',+
+'C:\ORA9DB\TSPACE\STKIDX01.DBS',+
+'C:\ORA9DB\TSPACE\SIPDTA01.DBS',+
+'C:\ORA9DB\TSPACE\SIPIDX01.DBS',+
+'C:\ORA9DB\TSPACE\DATDTA01.DBS',+
+'C:\ORA9DB\TSPACE\DATIDX01.DBS',+
+'C:\ORA9DB\TSPACE\ROLL01.DBF',+
+'C:\ORA9DB\TSPACE\TEMPDTA01.DBS',+
+'C:\ORA9DB\TSPACE\INDEX.DBS',+
+'C:\ORA9DB\TSPACE\CARIFIS.DBS',+
+'C:\ORA9DB\TSPACE\CARIFISIDX.DBS',+
+'C:\ORA9DB\TSPACE\CARIHESAP.DBS',+
+'C:\ORA9DB\TSPACE\CARIIDX.DBS',+
+'C:\ORA9DB\TSPACE\EVRAK.DBS',+
+'C:\ORA9DB\TSPACE\EVRAKIDX.DBS',+
+'C:\ORA9DB\TSPACE\ARSIVDATA.DBS',+
+'C:\ORA9DB\TSPACE\ARSIVIDX.DBS',+
+'C:\ORA9DB\TSPACE\UNDO01.DBF'+
CHARACTER SET WE8ISO8859P9
+;+
RECOVER DATABASE
ALTER DATABASE OPEN;
Then I ran following commands:
shutdown immediate;
[email protected]+
I have following errors:
SQL> @C:\createcfile.sql
ORACLE instance started.
Total System Global Area 655434496 bytes
Fixed Size 455424 bytes
Variable Size 494927872 bytes
Database Buffers 159383552 bytes
Redo Buffers 667648 bytes
CREATE CONTROLFILE REUSE DATABASE "ORCL" NORESETLOGS NOARCHIVELOG
*+
ERROR at line 1:
ORA-01503: CREATE CONTROLFILE failed
ORA-01565: error in identifying file 'C:\ORACLE\ORADATA\ORCL\SYSTEM01.DBF'
ORA-27047: unable to read the header block of file
OSD-04001: invalid logical block size
ORA-01507: database not mounted
ALTER DATABASE OPEN
*+
ERROR at line 1:
ORA-01507: database not mounted