Subject: Re: NetBSD with PV100T tape driver
To: None <>
From: didier gaumet <>
List: netbsd-users
Date: 05/21/2007 08:14:56
On Mon, 21 May 2007 00:33:01 +0200, Emmanuel MOUNIER wrote:

> I am using a Travan 20/40GB tape on a PV100T tape driver into my DELL 
> poweredge SC1420 machine runing with NetBSD 2.0.
> Very often, when I want to rewind my tape, I am getting the following 
> message : netbsd: st0: WARNING: cannot revert to default density
> Up to now, I have not been able to make a backup copy on the tape.
> Can anyone tell me what should be the default density param for my config ?
> Any experince with this tape driver on similar config ?
> Any further advice re the backup using star would be appreciated.
> Regards


From the specs of your Dell powervault 100t:

I would use 38 (DDS-4) mt density option:

But maybe your tape is not DDS-4 compatible, so not compatible
with your pv100t. So try 33 (QIC-20GB) which could be compatible with your
travan tape but not with your pv100t.

Another solution would be to use DDS-4 tapes like this one:

Best regards,