PQI Question

Elliott, Robert (Server Storage) Elliott at hp.com
Thu Oct 31 16:12:46 PDT 2013

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No.  The very first segment sits in the request IU (e.g., the COMMAND IU in
SOP), which only contains a standard SGL segment, which has an array of
16-byte SGL descriptors.
That array might just have one 16-byte Last Alternative SGL Segment
descriptor pointing to the alternative SGL segment (which is the type of SGL
segment that has the 20-byte descriptors).
Rob Elliott    HP Server Storage
From: owner-t10 at t10.org [mailto:owner-t10 at t10.org] On Behalf Of Paul
Sent: Thursday, 31 October, 2013 5:44 PM
To: t10 at t10.org
Subject: PQI Question
Marvell has a question about PQI.
Regarding Alternative SGL Segment in the PQI Spec, Annex A - Can the very
first segment be an Alternative SGL Segment?
Paul Wassenberg

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