ORA-1578 Misplaced blocks on LINUX against datafiles stored in NFS filers
(Doc ID 1923358.1)
Last updated on AUGUST 01, 2019
Applies to:Oracle Database - Enterprise Edition - Version 10.2.0.1 to 188.8.131.52 [Release 10.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
ORA-1578 due to misplaced blocks on LINUX. Database Files are stored in NFS filers. A misplaced block means that a block content was written in a different location (different file or different block) overwriting the original block. The corruption is reported in the alert log and by dbverify with message "Bad header found":
The block is healthy (computed block checksum is 0x0) but the content belongs to a different block. In this example rdba: 0x25407478 (rfile#=149, block#=29816) was overwritten with the content of rdba: 0x23c74e36 (rfile#=143 block#=478774)
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