Oracle DBWR Terminates Instance With ORA-600 [kcbzpb_1] during Startup

Posted by PDSERVICE on Nov 15, 2015 In

The information in this article applies to:

Oracle RDBMS in any platform usually after a instance crash caused by

some hardware problem.

Symptom(s)

~~~~~~~~~~

After the instance crashed you receive the following error during startup and

DBWR terminates instance:

***

Corrupt block relative dba: 0x02c31d6a (file 11, block 204138)

Bad header found during preparing block for write

Data in bad block -

type: 100 format: 101 rdba: 0x1e010101

last change scn: 0x0000.0c117747 seq: 0x2 flg: 0x20

consistency value in tail: 0x77476402

check value in block header: 0x0, block checksum disabled

spare1: 0x1, spare2: 0x1, spare3: 0x2020

***

Thu May 22 10:32:16 2003

Errors in file /oracle/app/oracle/admin/UNST/bdump/dbw0_1123.trc:

ORA-00600: internal error code, arguments: [kcbzpb_1], [46341482], [4], [0], [],

[], [], []

DBW0: terminating instance due to error 600

Instance terminated by DBW0, pid = 1123

Cause

~~~~~~~

Normally you will get this error after some hardware problem, like a disk or

a memory failure. You are not able to open database unless

you put corrupted block's datafile (you can identify it in alert log) offline.

Block corrupted is in the dirty queue when instance crashed and during startup

DBWR will try to write it to disk and got a failure.

Fix

~~~~

First you must find out and fix the hardware failure.

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