NOTIFY(POWER LOSS EXPECTED)

Karthikeyan, Kishore K kishore.k.karthikeyan at intel.com
Mon Sep 13 17:39:46 PDT 2010


Formatted message: <a href="http://www.t10.org/cgi-bin/ac.pl?t=r&f=r1009133_f.htm">HTML-formatted message</a>

Although the standard says "If a SAS target device supports NOTIFY(POWER LOSS
EXPECTED)", we could not find any text in the standard that shows how a
target can publish whether it supports this feature or not.
So if a target device does not support NOTIFY(POWER LOSS EXPECTED) primitive,
then how does it convey this information to the initiators? OR does the
standard expect a target that does not support this primitive to simply treat
this primitive as ALIGNs and there is no need to convey this information to
the initiators.
7.2.5.3.3 NOTIFY (POWER LOSS EXPECTED)
NOTIFY (POWER LOSS EXPECTED) is transmitted by a SAS initiator port or
expander port and is used to
specify to a SAS target device that power loss may occur within the time
specified in the POWER LOSS TIMEOUT
field in the Shared Port Control mode page (see 10.2.7.6).
NOTIFY (POWER LOSS EXPECTED) shall be transmitted at least three times by the
SAS initiator port or
expander port.
If a SAS target device supports NOTIFY (POWER LOSS EXPECTED) and receives
NOTIFY (POWER LOSS
EXPECTED) on an SSP target port, then:
Thanks
Kishore
From: owner-t10 at t10.org [mailto:owner-t10 at t10.org] On Behalf Of Penokie,
George
Sent: Monday, September 13, 2010 2:27 PM
To: Edirisooriya, Sam; t10 at t10.org
Subject: RE: NOTIFY(POWER LOSS EXPECTED)
No
Bye for now,
George Penokie
LSI Corporation
3033 41st St. NW
Suite 100
Rochester, MN 55901
507-328-9017
george.penokie at lsi.com
From: owner-t10 at t10.org [mailto:owner-t10 at t10.org] On Behalf Of Edirisooriya,
Sam
Sent: Monday, September 13, 2010 3:42 PM
To: t10 at t10.org
Subject: NOTIFY(POWER LOSS EXPECTED)
Is it mandatory to support NOTIFY(POWER LOSS EXPECTED) in SSP targets?
Thx
Sam
Sam Edirisooriya
Storage Architect
Intel Corp.
(480) 554-3818



More information about the T10 mailing list