Date: Wed, 16 May 2018 10:48:54 +0200 From: Dirk-Willem van Gulik <dirkx@webweaving.org> To: "Kenneth D. Merry" <ken@FreeBSD.ORG> Cc: freebsd-scsi@freebsd.org Subject: Re: Scalar i40 tapechanger LUN appearing as a second tape drive Message-ID: <3E5345E0-2F97-47A8-8BFB-94523B65B0A4@webweaving.org> In-Reply-To: <20180515201939.GA35140@mithlond.kdm.org> References: <47CCCC93-7168-47B8-8C80-248C90F8085C@webweaving.org> <20180515201939.GA35140@mithlond.kdm.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> On 15 May 2018, at 22:19, Kenneth D. Merry <ken@FreeBSD.ORG> 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 >> ... >> <HP Ultrium 5-SCSI Z6KZ> at scbus3 target 4 lun 0 = (sa0,pass1) >> <HP Ultrium 5-SCSI Z6KZ> 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.=
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?3E5345E0-2F97-47A8-8BFB-94523B65B0A4>