Reporting supported opcodes for an SPC-2 compliant scsi device

Pat LaVarre p.lavarre at
Thu Jun 3 08:21:04 PDT 2004

* From the T10 Reflector (t10 at, posted by:
* Pat LaVarre <p.lavarre at>
> In SPC-2 look in section "7.3.5 Command support data". It is part of
> the Inquiry command and does not work very well, if you can even find
> anyone that has implemented it.


Maybe more commonly people implement more or less proprietary ad-hoc
bootstrapping algorithms, for example, if op x12 "INQUIRY" says PDT =
x00 HDD then op x25 "READ CAPACITY" should report maxLba or maxLba+1.

If & when they choke over SK ASC = x 5 20 Unknown Op, then they revise
the algorithm.

Pat LaVarre

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