Date: Thu, 25 Mar 1999 02:56:51 +0100 From: Palle Girgensohn <girgen@partitur.se> To: mjacob@feral.com Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: Travan-20 tape streamer: unit not ready Message-ID: <36F997E3.8C27650@partitur.se> References: <Pine.LNX.4.04.9903221721160.21098-100000@feral-gw>
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Hi matt! Thanks for your response.
So, what do you suggest? Seems ridiculous for a tape device not to
support rewind! If I can't rewind it, it gets silly. I tried inserting
the tape and make an mt fsf 1 right away; still problem, but I guess cam
still tries to load the tape first, running samount... I guess one could
just comment away the exit part in the code below, and see what
happens...
I don't have much experience with tape devices, apart from my old travan
TR-4. This new tape is brand new, and I might be able to return it.
Maybe I should get another piece of hardware? Suggestions? I've only
heard bad opinions about DAT, but maybe they're better than the travan
stuff? Anything has cheaper tapes than tr, too... I can't get them for
less than close to $40 a piece here, and we're resellers... :(
/Palle
Matthew Jacob wrote:
>
> (removing freebsd-hardware from list).
>
> > in messages, the mt command gives the following "clues":
> > Mar 23 00:33:19 trumpet /kernel: (sa1:aha0:0:5:0): LOAD UNLOAD. CDB: 1b
> > 0 0 0 1 0
> > Mar 23 00:33:19 trumpet /kernel: (sa1:aha0:0:5:0): ILLEGAL REQUEST
> > asc:4,3
> > Mar 23 00:33:19 trumpet /kernel: (sa1:aha0:0:5:0): Logical unit not
> > ready, manual intervention required
> > Mar 23 00:33:19 trumpet /kernel: (sa1:aha0:0:5:0): REWIND. CDB: 1 0 0 0
> > 0 0
> > Mar 23 00:33:19 trumpet /kernel: (sa1:aha0:0:5:0): NOT READY asc:4,3
> > Mar 23 00:33:19 trumpet /kernel: (sa1:aha0:0:5:0): Logical unit not
> > ready, manual intervention required
>
> I just ordered an HP 20GB 'travan like' drive. It'll be interesting to see
> if this is also that broken.
>
> And this is with the unit there *and* a tape inserted? Wow! That is
> *really* fantastically broken that a tape drive that has a tape inserted
> supports *neither* a load (to BOT) command or a REWIND. The load is
> optional. The rewind is mandatory. That's amazing.
>
> I think I'll have to invent a new quirk for someething this broken.
> The code that this is breaking on is the following in samount:
>
> /*
> * *Very* first off, make sure we're loaded to BOT.
> */
> scsi_load_unload(&ccb->csio, 2, sadone, MSG_SIMPLE_Q_TAG, FALSE,
> FALSE, FALSE, 1, SSD_FULL_SIZE, 60000);
> error = cam_periph_runccb(ccb, saerror, 0, SF_QUIET_IR,
> &softc->device_stats);
> if ((ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
> cam_release_devq(ccb->ccb_h.path, 0, 0, 0, FALSE);
> /*
> * In case this doesn't work, do a REWIND instead
> */
> if (error) {
> scsi_rewind(&ccb->csio, 5, sadone, MSG_SIMPLE_Q_TAG,
> FALSE, SSD_FULL_SIZE,
> (SA_REWIND_TIMEOUT) * 60 * 1000);
> error = cam_periph_runccb(ccb, saerror, 0, 0,
> &softc->device_stats);
> }
> if (error) {
> xpt_release_ccb(ccb);
> goto exit;
> }
>
> When you're trying to mount a tape, make sure you're at BOT. If the
> rewind is failing- it's hard for me to really be sure I'm not overwriting
> something I shouldn't be, but if this drive really is that busted, I'll
> guss I'll quirk it so it doesn't matter.
>
> -matt
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