Persistent Reservations Problems in SPC-2 r6 and r7
Andrew.Hisgen at Eng.Sun.COM
Tue Feb 2 09:54:12 PST 1999
* From the T10 Reflector (t10 at symbios.com), posted by:
* Andrew.Hisgen at eng.Sun.COM (Andrew Hisgen)
> From t10-owner at Symbios.COM Tue Feb 2 09:47:59 1999
> Date: Tue, 2 Feb 1999 12:40:09 -0500 (EST)
> To: -T10 Reflector <T10 at Symbios.COM>
> Subject: Persistent Reservations Problems in SPC-2 r6 and r7
> Cc: "Coughlan, Tom" <tom.coughlan at digital.com>,
> "Snively, Bob" <Bob.Snively at Sun.COM>,
> "Penokie, George" <gop at us.ibm.com>,
> "Williams, Jeff" <Jeffrey.L.Williams at wdc.com>
> From: "Ralph O. Weber" <ralphoweber at csi.com>
> MIME-Version: 1.0
> * From the T10 Reflector (t10 at symbios.com), posted by:
> * "Ralph O. Weber" <ralphoweber at csi.com>
> It has come to my attention that I have failed to
> incorporate 98-203r9 (Persistent Reservations) correctly
> in SPC-2 revisions 6 and 7. The specific error concerns
> the Write Exclusive - Registrants Only and Exclusive
> Access - Registrants Only reservations types. SPC-2
> revisions 6 and 7 indicate that these to types limit
> write access to the initiator holding the reservation.
> 98-203r9 states that write access is limited to those
> initiators that have registered with the device
Regarding "Exclusive Access, Registrants Only", my recollection is that
both read and write access are limited to those initiators that have
registered with the device server. Your phrasing above is unclear, and
seems to discuss only write access.
Beware that I don't have my copy of the Persistent Reservations spec in
front of me, so please look at your copy and don't just believe me.
> SPC-2 revision 8 (which will appear within a couple
> of weeks) will be corrected to conform with the
> definition in the T10 approved 98-203r9 document.
> My apologies for this error.
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