Mignon,

The standard states:

....the vendor-specific number of retries, if any, for the write DATA frame has not been reached.

and

If transport layer retries are enabled and the vendor-specific number of retries, if any, for the read DATA frame has not been reached,

That would suggest that even though retries are enabled you don't have to do the retries. But if the customer of your product enables data retries and you don't do it them waving the "if any" clause as your excuse for not have to do the retry they are expecting will not get you very far.

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

07/27/2006 02:10 AM

To
<t10@t10.org>
cc
Subject
SAS: transport layer retries





Hello again,
 
If Transport Layer retries are enabled, and a link layer error (e.g. a NAK is received) occurs during a Data transfer, does a device, e.g. in SSP Target mode, have an option not to retry the data? Can the Target/device server terminate the command (send the status) without retrying? Will this action violate the specs?
 
Thanks in advance,
Mignon Fernandez