From owner-freebsd-scsi@freebsd.org Sun May 13 18:01:39 2018 Return-Path: Delivered-To: freebsd-scsi@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id A40DAFC869F for ; Sun, 13 May 2018 18:01:39 +0000 (UTC) (envelope-from dirkx@webweaving.org) Received: from weser.webweaving.org (weser.webweaving.org [148.251.234.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "weser.webweaving.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2A0FF7F72E for ; Sun, 13 May 2018 18:01:38 +0000 (UTC) (envelope-from dirkx@webweaving.org) Received: from [10.11.0.204] (5ED06D14.cm-7-1b.dynamic.ziggo.nl [94.208.109.20]) (authenticated bits=0) by weser.webweaving.org (8.15.2/8.15.2) with ESMTPSA id w4DI0Lk3026778 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Sun, 13 May 2018 20:00:21 +0200 (CEST) (envelope-from dirkx@webweaving.org) X-Authentication-Warning: weser.webweaving.org: Host 5ED06D14.cm-7-1b.dynamic.ziggo.nl [94.208.109.20] claimed to be [10.11.0.204] From: Dirk-Willem van Gulik Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Scalar i40 tapechanger LUN appearing as a second tape drive Message-Id: <47CCCC93-7168-47B8-8C80-248C90F8085C@webweaving.org> Date: Sun, 13 May 2018 20:00:21 +0200 To: freebsd-scsi@freebsd.org X-Mailer: Apple Mail (2.3273) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.2 (weser.webweaving.org [148.251.234.232]); Sun, 13 May 2018 20:00:22 +0200 (CEST) X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 13 May 2018 18:01:39 -0000 While having to re-surrect a Quantum Scalar i40 LTO5 unit - on a stock = 11.1-RELEASE-p6 wired up with a external SAS cable to a HP Smart Array = P222 I am seeing: camcontrol devlist=20 ... at scbus3 target 4 lun 0 = (sa0,pass1) at scbus3 target 4 lun 1 = (pass2,sa1) ....=09 rather than the tape drive on LUN 0 and the tape changer on LUN 1 (the = control path is to this drive - the serial number matches - and in like = with the web interface details).=20 dmesg shows: ... sa0 at ciss1 bus 32 scbus3 target 4 lun 0=20 sa0: Serial Number C38CEFF000 ... sa1 at ciss1 bus 32 scbus3 target 4 lun 1 ... sa1: Serial Number C38CEFF000 The second drive (Serial C38CEFF004) is not wired up. Or if it is - it = nicely shows up at the right (different) target and LUN0, without a = second LUN. Does this ring a bell with any one ? The kernel has ch(4), sa(4) and = pass(4) compiled in statically (and is known to work with other tape = changers/libraries). Any hints appreciated, Dw. From owner-freebsd-scsi@freebsd.org Sun May 13 21:00:11 2018 Return-Path: Delivered-To: freebsd-scsi@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 69279FD2DE1 for ; Sun, 13 May 2018 21:00:11 +0000 (UTC) (envelope-from bugzilla-noreply@FreeBSD.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 05FEE8684C for ; Sun, 13 May 2018 21:00:11 +0000 (UTC) (envelope-from bugzilla-noreply@FreeBSD.org) Received: by mailman.ysv.freebsd.org (Postfix) id BABABFD2DD6; Sun, 13 May 2018 21:00:10 +0000 (UTC) Delivered-To: scsi@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 961F9FD2DD5 for ; Sun, 13 May 2018 21:00:10 +0000 (UTC) (envelope-from bugzilla-noreply@FreeBSD.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 3411586842 for ; Sun, 13 May 2018 21:00:10 +0000 (UTC) (envelope-from bugzilla-noreply@FreeBSD.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id 8151E614 for ; Sun, 13 May 2018 21:00:09 +0000 (UTC) (envelope-from bugzilla-noreply@FreeBSD.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id w4DL09nt014174 for ; Sun, 13 May 2018 21:00:09 GMT (envelope-from bugzilla-noreply@FreeBSD.org) Received: (from bugzilla@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id w4DL09at014169 for scsi@FreeBSD.org; Sun, 13 May 2018 21:00:09 GMT (envelope-from bugzilla-noreply@FreeBSD.org) Message-Id: <201805132100.w4DL09at014169@kenobi.freebsd.org> X-Authentication-Warning: kenobi.freebsd.org: bugzilla set sender to bugzilla-noreply@FreeBSD.org using -f From: bugzilla-noreply@FreeBSD.org To: scsi@FreeBSD.org Subject: Problem reports for scsi@FreeBSD.org that need special attention Date: Sun, 13 May 2018 21:00:09 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.25 X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 13 May 2018 21:00:11 -0000 To view an individual PR, use: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=(Bug Id). The following is a listing of current problems submitted by FreeBSD users, which need special attention. These represent problem reports covering all versions including experimental development code and obsolete releases. Status | Bug Id | Description ------------+-----------+--------------------------------------------------- In Progress | 218830 | [cam] [patch] add CAM pass(4) support for NVMe New | 221952 | cam iosched: Fix trim statistics New | 221956 | cam iosched: Schedule cam_iosched_ticker() quanta New | 221957 | cam iosched: Add a handler for the quanta sysctl 4 problems total for which you should take action. From owner-freebsd-scsi@freebsd.org Tue May 15 20:19:43 2018 Return-Path: Delivered-To: freebsd-scsi@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C5B6BEABFE5 for ; Tue, 15 May 2018 20:19:43 +0000 (UTC) (envelope-from ken@kdm.org) Received: from mithlond.kdm.org (mithlond.kdm.org [96.89.93.250]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mithlond.kdm.org", Issuer "mithlond.kdm.org" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 576B57C302 for ; Tue, 15 May 2018 20:19:42 +0000 (UTC) (envelope-from ken@kdm.org) Received: from mithlond.kdm.org (localhost [127.0.0.1]) by mithlond.kdm.org (8.15.2/8.14.9) with ESMTPS id w4FKJfeI036235 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 15 May 2018 16:19:41 -0400 (EDT) (envelope-from ken@mithlond.kdm.org) Received: (from ken@localhost) by mithlond.kdm.org (8.15.2/8.14.9/Submit) id w4FKJdEe036234; Tue, 15 May 2018 16:19:39 -0400 (EDT) (envelope-from ken) Date: Tue, 15 May 2018 16:19:39 -0400 From: "Kenneth D. Merry" To: Dirk-Willem van Gulik Cc: freebsd-scsi@freebsd.org Subject: Re: Scalar i40 tapechanger LUN appearing as a second tape drive Message-ID: <20180515201939.GA35140@mithlond.kdm.org> References: <47CCCC93-7168-47B8-8C80-248C90F8085C@webweaving.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <47CCCC93-7168-47B8-8C80-248C90F8085C@webweaving.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (mithlond.kdm.org [127.0.0.1]); Tue, 15 May 2018 16:19:41 -0400 (EDT) X-Spam-Status: No, score=-2.7 required=5.0 tests=ALL_TRUSTED,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS autolearn=no autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mithlond.kdm.org X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 May 2018 20:19:43 -0000 On Sun, May 13, 2018 at 20:00:21 +0200, Dirk-Willem van Gulik wrote: > While having to re-surrect a Quantum Scalar i40 LTO5 unit - on a stock 11.1-RELEASE-p6 wired up with a external SAS cable to a HP Smart Array P222 I am seeing: > > camcontrol devlist > ... > at scbus3 target 4 lun 0 (sa0,pass1) > at scbus3 target 4 lun 1 (pass2,sa1) > .... > > rather than the tape drive on LUN 0 and the tape changer on LUN 1 (the control path is to this drive - the serial number matches - and in like with the web interface details). > > dmesg shows: > > ... > sa0 at ciss1 bus 32 scbus3 target 4 lun 0 > sa0: Serial Number C38CEFF000 > ... > sa1 at ciss1 bus 32 scbus3 target 4 lun 1 > ... > sa1: Serial Number C38CEFF000 > > The second drive (Serial C38CEFF004) is not wired up. Or if it is - it nicely shows up at the right (different) target and LUN0, without a second LUN. > > Does this ring a bell with any one ? The kernel has ch(4), sa(4) and pass(4) compiled in statically (and is known to work with other tape changers/libraries). > When you hooked other tape changers up, was it to the same machine, and also to the ciss(4) controller? Was the configuration the same? It looks like the array controller is moving things around. I would suggest taking a look at configuration options for the controller to see if you can adjust the way it does passthrough. Or, if you can find one, put a standard SAS controller in there (as opposed to a RAID controller) and hook that up to the tape library. It is unlikely that FreeBSD is causing this behavior. It really looks like the RAID controller is giving you multiple copies of the same tape drive. Ken -- Kenneth Merry ken@FreeBSD.ORG From owner-freebsd-scsi@freebsd.org Wed May 16 08:50:21 2018 Return-Path: Delivered-To: freebsd-scsi@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 282BAEAF5C2 for ; Wed, 16 May 2018 08:50:21 +0000 (UTC) (envelope-from dirkx@webweaving.org) Received: from weser.webweaving.org (weser.webweaving.org [148.251.234.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "weser.webweaving.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id ACCE77E78B for ; Wed, 16 May 2018 08:50:20 +0000 (UTC) (envelope-from dirkx@webweaving.org) Received: from beeb.leiden.webweaving.org (5ED06D14.cm-7-1b.dynamic.ziggo.nl [94.208.109.20]) (authenticated bits=0) by weser.webweaving.org (8.15.2/8.15.2) with ESMTPSA id w4G8msZ5021940 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 16 May 2018 10:48:57 +0200 (CEST) (envelope-from dirkx@webweaving.org) X-Authentication-Warning: weser.webweaving.org: Host 5ED06D14.cm-7-1b.dynamic.ziggo.nl [94.208.109.20] claimed to be beeb.leiden.webweaving.org From: Dirk-Willem van Gulik Message-Id: <3E5345E0-2F97-47A8-8BFB-94523B65B0A4@webweaving.org> Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: Scalar i40 tapechanger LUN appearing as a second tape drive Date: Wed, 16 May 2018 10:48:54 +0200 In-Reply-To: <20180515201939.GA35140@mithlond.kdm.org> Cc: freebsd-scsi@freebsd.org To: "Kenneth D. Merry" References: <47CCCC93-7168-47B8-8C80-248C90F8085C@webweaving.org> <20180515201939.GA35140@mithlond.kdm.org> X-Mailer: Apple Mail (2.3273) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.2 (weser.webweaving.org [148.251.234.232]); Wed, 16 May 2018 10:48:57 +0200 (CEST) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.26 X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 May 2018 08:50:21 -0000 > On 15 May 2018, at 22:19, Kenneth D. Merry wrote: >=20 > On Sun, May 13, 2018 at 20:00:21 +0200, Dirk-Willem van Gulik wrote: >> While having to re-surrect a Quantum Scalar i40 LTO5 unit - on a = stock 11.1-RELEASE-p6 wired up with a external SAS cable to a HP Smart = Array P222 I am seeing: >>=20 >> camcontrol devlist=20 >> ... >> at scbus3 target 4 lun 0 = (sa0,pass1) >> at scbus3 target 4 lun 1 = (pass2,sa1) >> ....=09 >>=20 >> rather than the tape drive on LUN 0 and the tape changer on LUN 1 = (the control path is to this drive - the serial number matches - and in = like with the web interface details).=20 >>=20 >> dmesg shows: >>=20 >> ... >> sa0 at ciss1 bus 32 scbus3 target 4 lun 0=20 >> sa0: Serial Number C38CEFF000 >> ... >> sa1 at ciss1 bus 32 scbus3 target 4 lun 1 >> ... >> sa1: Serial Number C38CEFF000 >>=20 >> The second drive (Serial C38CEFF004) is not wired up. Or if it is - = it nicely shows up at the right (different) target and LUN0, without a = second LUN. >>=20 >> Does this ring a bell with any one ? The kernel has ch(4), sa(4) and = pass(4) compiled in statically (and is known to work with other tape = changers/libraries). >>=20 >=20 > When you hooked other tape changers up, was it to the same machine, = and > also to the ciss(4) controller? Was the configuration the same? Yes (but *). > It looks like the array controller is moving things around. >=20 > I would suggest taking a look at configuration options for the = controller > to see if you can adjust the way it does passthrough. The control-path can indeed be set. It is set correctly (we also tried = the 3 other permutations possible). > Or, if you can find one, put a standard SAS controller in there (as = opposed > to a RAID controller) and hook that up to the tape library. Ok. good advice. Will do exactly that. > It is unlikely that FreeBSD is causing this behavior. It really looks = like > the RAID controller is giving you multiple copies of the same tape = drive. Thanks. The odd thing is that this very configuration/card/etc has = worked around 8.x. Dw *: the Quantum Scalar i40=E2=80=99s have the annoying habit to = self-check their firmware and prime themselves for auto update with a = fairly easy to miss cancel prompt on the screen. So we are not a 100% it = was not updated during the re-racking by someone going through the = re-calibration mindlessly.= From owner-freebsd-scsi@freebsd.org Wed May 16 16:53:16 2018 Return-Path: Delivered-To: freebsd-scsi@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4CD25EED0C3 for ; Wed, 16 May 2018 16:53:16 +0000 (UTC) (envelope-from ken@kdm.org) Received: from mithlond.kdm.org (mithlond.kdm.org [96.89.93.250]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mithlond.kdm.org", Issuer "mithlond.kdm.org" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id E64C870F1A for ; Wed, 16 May 2018 16:53:15 +0000 (UTC) (envelope-from ken@kdm.org) Received: from mithlond.kdm.org (localhost [127.0.0.1]) by mithlond.kdm.org (8.15.2/8.14.9) with ESMTPS id w4GGr8sr055050 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 16 May 2018 12:53:08 -0400 (EDT) (envelope-from ken@mithlond.kdm.org) Received: (from ken@localhost) by mithlond.kdm.org (8.15.2/8.14.9/Submit) id w4GGr7mN055049; Wed, 16 May 2018 12:53:07 -0400 (EDT) (envelope-from ken) Date: Wed, 16 May 2018 12:53:07 -0400 From: "Kenneth D. Merry" To: Dirk-Willem van Gulik Cc: freebsd-scsi@freebsd.org Subject: Re: Scalar i40 tapechanger LUN appearing as a second tape drive Message-ID: <20180516165307.GB35140@mithlond.kdm.org> References: <47CCCC93-7168-47B8-8C80-248C90F8085C@webweaving.org> <20180515201939.GA35140@mithlond.kdm.org> <3E5345E0-2F97-47A8-8BFB-94523B65B0A4@webweaving.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3E5345E0-2F97-47A8-8BFB-94523B65B0A4@webweaving.org> User-Agent: Mutt/1.5.23 (2014-03-12) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3 (mithlond.kdm.org [127.0.0.1]); Wed, 16 May 2018 12:53:09 -0400 (EDT) X-Spam-Status: No, score=-2.7 required=5.0 tests=ALL_TRUSTED,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS autolearn=no autolearn_force=no version=3.4.1 X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on mithlond.kdm.org X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 May 2018 16:53:16 -0000 On Wed, May 16, 2018 at 10:48:54 +0200, Dirk-Willem van Gulik wrote: > > > On 15 May 2018, at 22:19, Kenneth D. Merry wrote: > > > > On Sun, May 13, 2018 at 20:00:21 +0200, Dirk-Willem van Gulik wrote: > >> While having to re-surrect a Quantum Scalar i40 LTO5 unit - on a stock 11.1-RELEASE-p6 wired up with a external SAS cable to a HP Smart Array P222 I am seeing: > >> > >> camcontrol devlist > >> ... > >> at scbus3 target 4 lun 0 (sa0,pass1) > >> at scbus3 target 4 lun 1 (pass2,sa1) > >> .... > >> > >> rather than the tape drive on LUN 0 and the tape changer on LUN 1 (the control path is to this drive - the serial number matches - and in like with the web interface details). > >> > >> dmesg shows: > >> > >> ... > >> sa0 at ciss1 bus 32 scbus3 target 4 lun 0 > >> sa0: Serial Number C38CEFF000 > >> ... > >> sa1 at ciss1 bus 32 scbus3 target 4 lun 1 > >> ... > >> sa1: Serial Number C38CEFF000 > >> > >> The second drive (Serial C38CEFF004) is not wired up. Or if it is - it nicely shows up at the right (different) target and LUN0, without a second LUN. > >> > >> Does this ring a bell with any one ? The kernel has ch(4), sa(4) and pass(4) compiled in statically (and is known to work with other tape changers/libraries). > >> > > > > When you hooked other tape changers up, was it to the same machine, and > > also to the ciss(4) controller? Was the configuration the same? > > Yes (but *). > > > It looks like the array controller is moving things around. > > > > I would suggest taking a look at configuration options for the controller > > to see if you can adjust the way it does passthrough. > > The control-path can indeed be set. It is set correctly (we also tried the 3 other permutations possible). > Ok. Perhaps the RAID controller firmware was updated since the last time you did this, and it doesn't work as well as it used to work. > > Or, if you can find one, put a standard SAS controller in there (as opposed > > to a RAID controller) and hook that up to the tape library. > > Ok. good advice. Will do exactly that. The best controllers to use are LSI (now Broadcom) 6Gb or 12Gb SAS controllers. They have TLR support, which helps insure data integrity with tape drives. > > It is unlikely that FreeBSD is causing this behavior. It really looks like > > the RAID controller is giving you multiple copies of the same tape drive. > > Thanks. The odd thing is that this very configuration/card/etc has worked around 8.x. > Yeah, it is odd. Perhaps the ciss driver got updated, or perhaps the RAID firmware got updated. In any case, a standard SAS controller should eliminate the problem. (Spectra Logic ships LSI controllers for use with tape libraries, so I know that works.) > > *: the Quantum Scalar i40???s have the annoying habit to self-check their firmware and prime themselves for auto update with a fairly easy to miss cancel prompt on the screen. So we are not a 100% it was not updated during the re-racking by someone going through the re-calibration mindlessly. Ahh, interesting. Ken -- Kenneth Merry ken@FreeBSD.ORG From owner-freebsd-scsi@freebsd.org Wed May 16 17:31:36 2018 Return-Path: Delivered-To: freebsd-scsi@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 38096EEF182 for ; Wed, 16 May 2018 17:31:36 +0000 (UTC) (envelope-from dirkx@webweaving.org) Received: from weser.webweaving.org (weser.webweaving.org [148.251.234.232]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "weser.webweaving.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B7FA872E22 for ; Wed, 16 May 2018 17:31:35 +0000 (UTC) (envelope-from dirkx@webweaving.org) Received: from beeb.leiden.webweaving.org (5ED29A06.cm-7-3c.dynamic.ziggo.nl [94.210.154.6]) (authenticated bits=0) by weser.webweaving.org (8.15.2/8.15.2) with ESMTPSA id w4GHUEuO033322 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 16 May 2018 19:30:17 +0200 (CEST) (envelope-from dirkx@webweaving.org) X-Authentication-Warning: weser.webweaving.org: Host 5ED29A06.cm-7-3c.dynamic.ziggo.nl [94.210.154.6] claimed to be beeb.leiden.webweaving.org From: Dirk-Willem van Gulik Message-Id: <64CB99E1-9A12-41EB-9D11-42C1AECED2F0@webweaving.org> Mime-Version: 1.0 (Mac OS X Mail 10.3 \(3273\)) Subject: Re: Scalar i40 tapechanger LUN appearing as a second tape drive Date: Wed, 16 May 2018 19:30:14 +0200 In-Reply-To: <20180516165307.GB35140@mithlond.kdm.org> Cc: freebsd-scsi@freebsd.org To: "Kenneth D. Merry" References: <47CCCC93-7168-47B8-8C80-248C90F8085C@webweaving.org> <20180515201939.GA35140@mithlond.kdm.org> <3E5345E0-2F97-47A8-8BFB-94523B65B0A4@webweaving.org> <20180516165307.GB35140@mithlond.kdm.org> X-Mailer: Apple Mail (2.3273) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.6.2 (weser.webweaving.org [148.251.234.232]); Wed, 16 May 2018 19:30:17 +0200 (CEST) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.26 X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 May 2018 17:31:36 -0000 On 16 May 2018, at 18:53, Kenneth D. Merry wrote: >> Ok. good advice. Will do exactly that. >=20 > The best controllers to use are LSI (now Broadcom) 6Gb or 12Gb SAS > controllers. They have TLR support, which helps insure data integrity = with > tape drives. Ok - we surely have a few SAS9201 and LSIA SAS9202=E2=80=99s around. Dw.