From mboxrd@z Thu Jan 1 00:00:00 1970 From: James Bottomley Subject: RE: SCSI persistent reservation terms Date: Mon, 12 Apr 2010 10:09:35 -0500 Message-ID: <1271084975.4428.12.camel@mulgrave.site> References: <3BEB5F9B6605A140847DEEEDF7439C5D040A06C8@CORPUSMX50A.corp.emc.com> <1270666077.3332.10.camel@haakon2.linux-iscsi.org> <3BEB5F9B6605A140847DEEEDF7439C5D04125E92@CORPUSMX50A.corp.emc.com> <4BC32621.8080706@interlog.com> <3BEB5F9B6605A140847DEEEDF7439C5D04125F6D@CORPUSMX50A.corp.emc.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: Received: from cantor2.suse.de ([195.135.220.15]:47596 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750776Ab0DLPJm (ORCPT ); Mon, 12 Apr 2010 11:09:42 -0400 In-Reply-To: <3BEB5F9B6605A140847DEEEDF7439C5D04125F6D@CORPUSMX50A.corp.emc.com> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: lemons_terry@emc.com Cc: dgilbert@interlog.com, nab@linux-iscsi.org, linux-scsi@vger.kernel.org On Mon, 2010-04-12 at 10:53 -0400, lemons_terry@emc.com wrote: > Hi Doug > > Thanks for the reply. I did stare at Table 51 before writing my email. > The 'Processing' language for the first and third rows is exactly the > same; that's why I'm still confused! > > I've printed and read (several times) both section 5.7 'Reservations' > and sections 6.13 'PERSISTENT RESERVE IN' / 6.14 'PERSISTENT RESERVE > OUT'. But I don't see any language that explains the difference between > 'write_exclusive' and 'write_exclusive_registrants_only'. If this is in > there, I apologize for not seeing it. The change is in the definition of the "reservation holder" for the reservation (5.7.10). For exclusive all registrants reservations, the holder is all registered initiators; otherwise it's the initiator port the reservation was issued on. James