Re: Automating a tar -M... Looking for ideas

dfrench_at_mtxia.com
Date: 12/30/04 

Date: 30 Dec 2004 08:52:04 -0800

dfrench@mtxia.com wrote:
> cyber0ne wrote:
> > I've written a number of very small and simple shell scripts to
> handle
> > my tape archiving needs and now I'm looking to extend the
automation
> a
> > step further. As it stands, I invoke a script which
>
> SNIP
>
>
> > Does anyone have any ideas for a way of pausing between the tapes
in
> a
> > script (-M includes an option for running a script instead of
> > displaying its default message and requesting user input) that
> doesn't
> > require me being logged in? Ideally, if I could cron the entire
> backup
> > job and just put in the next tape whenever I notice the previous
one
> is
> > done (I can tail the aforementioned log file for the backup's
current
> > status) that would be perfect.
> >
>
> SNIP
>
>
> One thought that comes to mind is to output your prompt to the
console
> /dev/console, and when a tape finishes eject the tape using the 'tctl
> -f /dev/rmt0 offline' command (with whatever tape device you are
> using). Then in your script, periodically test the tape drive using
> 'tctl -f /dev/rmt0 status' to see if a new tape has been inserted, if
> so, continue with the next backup. All this is untested of course.
> --
> Dana French

"tctl" is AIX, use "mt" for non-AIX, however I don't think "mt"
supports the "offline" subcommand. 

-- 
Dana French

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