Clarification in Error message handling

Roy Lui Roy.Lui at
Wed Mar 20 15:46:03 PDT 2013

Formatted message: <a href="">HTML-formatted message</a>

Thanks Rakesh! George's interpretation is basically in alignment with the
behavior we saw on the SanDisk drive. Would you agree?
From: owner-t10 at [mailto:owner-t10 at] On Behalf Of Rakesh KN
Sent: Wednesday, March 20, 2013 3:11 PM
To: t10 at
Subject: Clarification in Error message handling
From: Penokie, George [mailto:George.Penokie at]
Sent: Wednesday, March 20, 2013 9:08 PM
To: Rakesh KN
Cc: t10 at<mailto:t10 at>
Subject: RE: Clarification in Error message handling
You are required to process all 9 steps in the error list (that includes
sending a Control/Status TTIU after an error TTIU) before responding to the
next Transmit Error Response message. I would however also note that not
every Transmit Error Response message in a sequence of Transmit Error
Response message has to have an Error Response TTIU.
The sections that show the examples do not contain requirements and do not
show 100% of the actions. The state machines contain all the actual
requirements so if there is anything that appears to be in conflict the state
machines always win. That said, I will make a note to modify section to note that a Control/Status TTIU is required to be sent after
each Error TTIU.
Bye for now,
George Penokie
LSI Corporation
3033 41 St NW
Rochester , MN 55901
george.penokie at
From: Rakesh KN [mailto:Rakesh.KN at]
Sent: Tuesday, March 19, 2013 11:18 AM
To: Penokie, George
Cc: t10 at<mailto:t10 at>
Subject: Clarification in Error message handling
Hi George Penokie,
     Please can you clarify the behavior on Error message handling in section  that  "Error response should be send first followed by a control
/ Status TTIU" is only when a single error is seen or when there is enough
time interval between the received consecutive error TTIU's but when back to
back error TTIU's are received the steps 1 to 4 will be repeated till the
set_transmitter_fail_message is made low.
In " Invalid TTIU sequence" on pg 205 the diagram shows that 2
and 3 are consecutive error response but for 4 error response TTIU is
followed by Control / Status TTIU. So it is not consistent so need to confirm
in a back to back reception of Invalid Control/Status TTIU's we just send
ERROR Response TTIU's (without valid control and status TTIU's between the
Error TTIU's )
Best Regards
PLEASE NOTE: The information contained in this electronic mail message is
intended only for the use of the designated recipient(s) named above. If the
reader of this message is not the intended recipient, you are hereby notified
that you have received this message in error and that any review,
dissemination, distribution, or copying of this message is strictly
prohibited. If you have received this communication in error, please notify
the sender by telephone or e-mail (as shown above) immediately and destroy
any and all copies of this message in your possession (whether hard copies or
electronically stored copies).

More information about the T10 mailing list