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 126.96.36.199 to 188.8.131.52 [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
Bad header found during buffer read (logical check)
Data in bad block:
Trace file generated shows ORA-1410
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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