Subject: RE: SAS: transport layer: ACK lost
Date: Wed, 12 Jul 2006 14:16:17 +0800
From: "Mignon Fernandez" <Mignon.M.Fernandez@bitmicro.com>
To: "George Penokie" <gop@us.ibm.com>
Cc: <t10@t10.org>
X-Message-Number: 7048
Formatted message: HTML-formatted message

Hello Mr. Penokie, 
Thank you for your response.  Yes, I was assuming frame level retries
are enabled and was referring to handling of retried data in general
(initiator's or target's point of view). 
Regards,
Mignon 
________________________________
From: George Penokie [mailto:gop@us.ibm.com] 
Sent: Thursday, July 06, 2006 2:35 PM
To: Mignon Fernandez
Cc: t10@t10.org
Subject: Re: SAS: transport layer: ACK lost
Mignon, 
>From your question it is not clear if you are asking from a targets
point of view or an initiators point of view. It's also not clear if you
are asking about what happens if frame level retries are enabled or
disabled. 
So given that lack of knowledge the answer to you question is yes you
have to overwrite data that is retried even if it has been ACKed. 
Bye for now,
George Penokie
Dept 9A8 030-3 A410
E-Mail:    gop@us.ibm.com
Internal:  553-5208
External: 507-253-5208 
"Mignon Fernandez" <Mignon.M.Fernandez@bitmicro.com> 
Sent by: owner-t10@t10.org 
06/21/2006 08:00 AM 
To
<t10@t10.org> 
cc
Subject
SAS: transport layer: ACK lost
Hello, 
If retries are enabled, and an ACK gets lost, then the transmitter
retries, is it required for the receiver to overwrite the data that is
retried even if it has ACK-ed all data in the previous connection? 
Thanks in advance, 
Mignon Fernandez