Subject: Re: scsi DLT tape drives
To: Patrick Welche <email@example.com>
From: Manuel Bouyer <firstname.lastname@example.org>
Date: 07/08/2004 12:30:54
On Thu, Jul 08, 2004 at 11:16:54AM +0100, Patrick Welche wrote:
> > 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.
> The tape drive is a "PowerVault 110T DLT VS80" According to the Dell spec
> (why bsd? ;) )
> 2940 Ultra-2/Wide SCSI
> 39160 Ultra-2/LVD SCSI SCSI
> The documentation only mentions the 4 scsi id jumpers, not what the other 3
> if you can ever get past all the redirections and invalid cookies..
> and explains that the tape drive may be plugged into a LVD or SE scsi bus.
> The terminator is separate and on the end of the cable..
Should be OK, then ... but
> I now have it in another box, with no disks plugged in eg:
> st0 at scsibus1 target 6 lun 0: <BNCHMARK, DLT1, 5032> tape removable
> st0: drive empty
> st0: sync (100.00ns offset 15), 16-bit (20.000MB/s) transfers
If it's LVD, why does it negotiate such a low speed ? It's doing wide,
not even Ultra ...
Do you have another LVD controller around to try ? A esiop (895 or 1010)
would be a plus, as the driver will print a message if it detects a
single-ended bus :)
Manuel Bouyer <email@example.com>
NetBSD: 26 ans d'experience feront toujours la difference