From mboxrd@z Thu Jan 1 00:00:00 1970 From: Luben Tuikov Subject: Re: Report luns [was: Apple Xserve RAID and qlogic ISP2312 (qla2300)] Date: Wed, 10 Nov 2004 09:47:59 -0500 Message-ID: <41922A1F.7060705@adaptec.com> References: <20041027233321.GA842@astral.ro> <20041028143734.GA16358@beaverton.ibm.com> <20041028153522.GC1915@astral.ro> <20041028164210.GA16905@beaverton.ibm.com> <20041028172143.GA20949@praka.san.rr.com> <20041029085800.GF6671@astral.ro> <20041029180633.GA27267@beaverton.ibm.com> <20041101105611.GJ22603@astral.ro> <20041101194845.GA27913@us.ibm.com> <41903031.3050205@torque.net> <4190DCE0.1070606@adaptec.com> <4191A4F5.2040300@torque.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from magic.adaptec.com ([216.52.22.17]:15770 "EHLO magic.adaptec.com") by vger.kernel.org with ESMTP id S261917AbUKJOsO (ORCPT ); Wed, 10 Nov 2004 09:48:14 -0500 In-Reply-To: <4191A4F5.2040300@torque.net> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: dougg@torque.net Cc: Patrick Mansfield , linux-scsi@vger.kernel.org Douglas Gilbert wrote: > > SAS expanders (or at least their SMP target ports) are > a similar problem to W-LUNs. Namely we have no way to > "talk" to them from the user space currently in Linux. > SMP is not a SCSI command set (but it is close). Even if > sg could issue SMP commands, I'm not sure the scsi mid > level would be helpful when error conditions occurred > (e.g. SMP command timeout). > > As for the addressability problem, sockets and connect > calls come to mind. Yeah, that's a pickle. Luben