On Thu, 20 Mar 2003 at 6:07pm, Mats Blomstrand wrote

> I have a HP C7200 (Dell powervault 128T) medium changer that i cant figure
> out how to talk to.  I have read the chg-scsi instructions but i havent 
> managed
> to understand what to do other than the "big-picture". That doesnt help when
> it comes to details (the devil is in the details, someone wise said :) ).
> 
> What device should i specify?
> 
> Here is the systems view of the devices.
>       bash$ cat /proc/scsi/scsi
>       Attached devices: 
>       Host: scsi0 Channel: 00 Id: 00 Lun: 00
>         Vendor: HP       Model: C7200            Rev: 140D
>         Type:   Medium Changer                   ANSI SCSI revision: 03
>       Host: scsi0 Channel: 00 Id: 01 Lun: 00
>         Vendor: HP       Model: Ultrium 1-SCSI   Rev: E24V
>         Type:   Sequential-Access                ANSI SCSI revision: 03
> 
> Or rather i should ask: How should i create the device?
> 
> Background-info: First time amanda user, Intel PC, RH7.2

The devices are already there, you just need to know which ones they are.  
Changers are access as sg devices -- yours will be /dev/sg0 (it's the 
first SCSI device).  Your tape drive is /dev/nst0.

Not having used chg-scsi, I'd recommend that you may want to check out 
chg-zd-mtx.  You'll need mtx, available from <http://mtx.badtux.net/>.  
I found it very easy to set up following the instructions in the 
chg-zd-mtx script itself.

Good luck.

-- 
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University