[SAT query]Simultaneous support for security protocol - "Device Server Password Security" and "TCG"

James C Hatfield james.c.hatfield at seagate.com
Wed Feb 17 08:01:41 PST 2010

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Yes. That is what it means.
There is a similar restriction in the ATA standards.
In fact, the ATA restriction is the source of the T10 restriction.
ref: ATA8-ACS, ACS-2	 (at www.t13.org)
- While ATA security feature set shows 'locked', these commands shall abort:
I keep arguing the case to change the restriction (in T13), but there is
substantial opposition to the proposal.
Thank You !!!
Jim Hatfield
Seagate Technology LLC
  e-mail:  James.C.Hatfield at seagate.com
  s-mail:  389 Disc Drive;  Longmont, CO 80503 USA
  voice:  720-684-2120
  fax....: 720-684-2766
On Wed, Feb 17, 2010 at 3:58 AM, Nilesh Govande
<nileshgovande at gmail.com>wrote:
> * From the T10 Reflector (t10 at t10.org), posted by:
> * Nilesh Govande <nileshgovande at gmail.com>
> *
> Hello All,
> This is a query regarding SECURITY PROTOCOL IN / OUT
> As per Sept  16, 2009 SAT2R09 Table "Table 130 — SPC commands allowed
> in the presence of various ATA security modes (part 3 of 3)"
> The command SECURITY PROTOCOL OUT with TCG (Security protocol set to
> value 1 to 6) is said to 'Conflict' even when security state is
> 'Unlocked or
> Disabled’. Does this mean that a SATL cannot support both 'Device
> Server Password Security' and 'TCG' security standards simultaneously?
> Nilesh
> *
> * For T10 Reflector information, send a message with
> * 'info t10' (no quotes) in the message body to majordomo at t10.org

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