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Former Member
Oct 20, 2008 at 07:50 AM

ORA-00204: error in reading (block string, # blocks string) of controlfile


dear all

when i start db

with command sqlplus "/as sysdba"

at the end it generate an error

C:\Documents and Settings\idsadm>sqlplus "/as sysdba"

SQL*Plus: Release - Production on Mon Oct 20 12:47:37 2008

Copyright (c) 1982, 2005, Oracle. All rights reserved.

Connected to an idle instance.

SQL> startup

ORACLE instance started.

Total System Global Area 557842432 bytes

Fixed Size 1250140 bytes

Variable Size 289410212 bytes

Database Buffers 264241152 bytes

Redo Buffers 2940928 bytes

ORA-00204: error in reading (block 3, # blocks 50) of control file


ORA-27091: unable to queue I/O

ORA-27070: async read/write failed

OSD-04006: ReadFile() failure, unable to read from file

O/S-Error: (OS 23) Data error (cyclic redundancy check).