Subject: Re: (2nd send) opinion sought about EOM handling for tapes
To: Simon J. Gerraty <sjg@quick.com.au>
From: Matthew Jacob <mjacob@feral.com>
List: tech-kern
Date: 07/13/1998 07:49:01
Hmm. Sounds cool... sounds vaguely like early NAStore (which in
fact did use an off the shelf database- turned out to be a disaster
'coz it was broken).

I forgot- are the LISA papers online?


On Mon, 13 Jul 1998, Simon J. Gerraty wrote:

> >For a good tapesystem we also need basic volume handling and 
> >label-processing.
> 
> FYI the following paper from the LISA VI conference (Oct 92)
> 
> >           DeeJay, the Dump Jockey and Daemon of the Jukebox
> >                 A Heterogeneous Network Backup System
> > 
> >                             by Howie Kaye
> >                            and Melissa Metz
> 
> Describes a backup system implemented using infinite length virtual 
> tape volumes using ANSI tape labels and an relational database (early
> ingres) to keep track of which tapes hold which volumes etc.
> 
> Anyway, it sounded like you didn't have to do much at the device level
> to achieve this.  
> 
> I had originally planned to port the thing to work with postgres, but 
> never spent much time on it.
> 
> --sjg
>