Arbitration Wait Time

Elliott, Robert (Server Storage) Elliott at
Thu Feb 1 11:30:25 PST 2007

Attachment #1: <A HREF="r0702011_smime.p7s">smime.p7s</A>

> -----Original Message-----
> From: owner-t10 at [mailto:owner-t10 at] On Behalf 
> Of Dennis Moore
> Sent: Thursday, February 01, 2007 10:39 AM
> To: t10 at
> Subject: SAS: Arbitration Wait Time
> * From the T10 Reflector (t10 at, posted by:
> * Dennis Moore <dmoore at>
> *
> Should the Arbitration Wait Time in the Open Address frame be 
> incremented in the expanders while the ECM is arbitrating for 
> the path? 
> Or is it only incremented by the source of the Open?
Each expander is supposed to increment AWT while holding on to
the connection request.  If it goes right through in 20-30 dwords,
the value won't change; if it waits on a connection for a long
time, it will.
Rob Elliott, elliott at
Hewlett-Packard Industry Standard Server Storage Advanced Technology

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