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Wednesday, March 27, 2013

ORA-00204 Error in Reading Block String of Control File

Error Code
ORA-00204

Description
Error in reading (block string, # blocks string) of control file.

Cause
Possible cause of this error is, a disk I/O failure was detected on reading the control file.

Action
To fix this issue, check if the disk is online, if it is not, bring it online and try a warm start again. If it is online, then you need to recover the disk.

reference

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