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