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Alert Log Shows Corrupt Blocks or 1410 in alert log in 12.2 (Doc ID 2310754.1)

Last updated on JULY 25, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


 Database Upgraded recently to 12.2

 Alert log shows

Corrupt block relative dba: 0x00c02ecc (file 2, block 110780)
Bad header found during buffer read (logical check)
Data in bad block:

Trace file generated shows ORA-1410

kcbzib: encounter logical error ORA-1410, try re-reading from other mirror..
cursor valid? 1 makecr 0 line 17955 ds_blk (2, 110780) bh_blk (2, 110780)



Rman backup validate check logical reports no Corruption.

Dbverify comes out clean on that block.

Analyze table <owner>.<table name> validate structure online comes out clean.

In Most case Object in XDB schema are reporting these false error.


 Database upgraded to 12.2


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