FS System: What do Hosts Report when Read Before Write Access Performed (Doc ID 2140141.1)

Last updated on SEPTEMBER 27, 2016

Applies to:

Oracle FS1-2 Flash Storage System - Version All Versions and later
Information in this document applies to any platform.

Symptoms

When a host performs read I/O to volume blocks that have not been written to AND 'reference tag' checking is enabled on that volume, the following messages may be recorded on the host.

 

Solaris OS (with Qlogic HBA 'qlc' driver and 'extended-logging' (debug) enabled.)

 

 

Cause

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