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Physical Corrupted Blocks consisting of all Zeroes indicate a problem with OS, HW or Storage (Doc ID 1545366.1)

Last updated on JUNE 16, 2021

Applies to:

Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Schema Service - Version N/A and later
Information in this document applies to any platform.
** Reviewed for Relevancy Oct 2014 **

Purpose

The purpose of this article is to describe a certain type of physical block corruption consisting of an Oracle block containing all zeros.

DBVerify reports this block corruption with message:

 

Scope

 

Details

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In this Document
Purpose
Scope
Details
 Oracle by design does not write blocks of all zeroes.
 Storage vendors have implemented checks based on the Oracle design of not writing zeros.
 Conclusion
References

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