SPC Inquiry for Quad-Aligned Zero -- deprecated since SPC-4 maybe

Mike Berhan mikeb at bustrace.com
Thu Jan 3 11:05:54 PST 2008

* From the T10 Reflector (t10 at t10.org), posted by:
* "Mike Berhan" <mikeb at bustrace.com>
> What is wrong with TEST UNIT READY as a way to validate Command Out
> and Status In processing?
Two reasons come to mind:
1.)  Some pseudo devices do not support TUR.  Only Inquiry and their vendor
unique CDBs.
2.)  Perhaps the software making the call doesn't want to clear out any
pending Unit Attention.
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