A persistent reservation question

Elliott, Robert (Server Storage) elliott at hp.com
Thu Jun 24 18:04:05 PDT 2004


* From the T10 Reflector (t10 at t10.org), posted by:
* "Elliott, Robert (Server Storage)" <elliott at hp.com>
*
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SPC-2, which defined both commands, requires that RESERVATION CONFLICT
status be returned.
=20
SPC-3, which considers RESERVE/RELEASE obsolete, allows them to be
treated as NOOPs in certain cases (see section 5.6.2 of revision 19, =
all
the revisions of 03-232, 02-483, and 02-231).
=20
--=20
Rob Elliott, elliott at hp.com=20
Hewlett-Packard Industry Standard Server Storage Advanced Technology=20
https://ecardfile.com/id/RobElliott
<https://ecardfile.com/id/RobElliott> =20


-----Original Message-----
From: owner-t10 at t10.org [mailto:owner-t10 at t10.org] On Behalf Of
MEHROTRA, VIVEK (STSD)
Sent: Thursday, June 24, 2004 3:23 PM
To: t10 at t10.org
Subject: A persistent reservation question



Hi Folks,=20

What is the best approach to handle the scenario, when a device is
registered for persistent reservation using SCSI 3 style PERSISTENT
RESERVE OUT command (expecting a same style command with RESERVE =
service
action), but receives a old style RESERVE command from the initiator.

I didn't see SCSI specs talking about this anywhere !=20

Thanks in Advance=20

Vivek Mehrotra=20


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Message SPC-2,=20 which defined both commands, requires that RESERVATION CONFLICT status = be=20 returned.
  
 SPC-3,=20 which considers RESERVE/RELEASE obsolete, allows them to be treated=20 as NOOPs in certain cases (see section 5.6.2 of revision 19, all = the=20 revisions of 03-232, 02-483, and 02-231).
  
 -- = 
Rob Elliott, = elliott at hp.com=20 
Hewlett-Packard = Industry Standard=20 Server Storage Advanced Technology 
https://ecardfile.com/id/Ro= bElliott=20 


-----Original Message-----
From:=20 owner-t10 at t10.org [mailto:owner-t10 at t10.org] On Behalf Of = MEHROTRA,=20 VIVEK (STSD)
Sent: Thursday, June 24, 2004 3:23 = PM
To:=20 t10 at t10.org
Subject: A persistent reservation=20 question


 Hi Folks, What is the best approach to handle = the scenario,=20 when a device is registered for persistent reservation using SCSI 3 = style=20 PERSISTENT RESERVE OUT command (expecting a same style command with = RESERVE=20 service action), but receives a old style RESERVE command from the=20 initiator. I didn't see SCSI specs talking about = this anywhere=20 ! Thanks in Advance Vivek Mehrotra = 

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