Subject: Re: scsi DLT tape drives
To: Patrick Welche <>
From: Manuel Bouyer <>
List: port-i386
Date: 07/07/2004 20:51:31
On Wed, Jul 07, 2004 at 03:58:54PM +0100, Patrick Welche wrote:
> I just put together a box with:
>   mpt0 at pci2 dev 3 function 0: LSI Logic 53c1030 Ultra320 SCSI
> and two
>   sd0 at scsibus1 target 0 lun 0: <FUJITSU, MAS3735NP, 5B08> disk fixed
>   sd0: 70007 MB, 27094 cyl, 8 head, 661 sec, 512 bytes/sect x 143374650 sectors
>   sd0: sync (6.25ns offset 127), 16-bit (320.000MB/s) transfers, tagged queueing
> When I plugged the
>   st0 at scsibus1 target 6 lun 0: <BNCHMARK, DLT1, 5032> tape removable
> in, sd0 and sd1 disappeared. Tech support is claiming this is normal,
> and that the tape has to be the only scsi device on the bus. I am
> incredulous. What do you think?

What kind of interface is st0 ?
The drive are LVD. It the tape drive is single-ended (which is what I would
expect for a DLT1), the bus has switched to single-ended, but it's possible
that the drives didn't notice. Usually drives have a jumper to
force to single-ended, and I've got to use it in some conditions.

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference