To Hans-Ole Kaae (and James Trudeau)

Thanks for your suggestions, I am already doing something very similar to
your solutions. I just thought I would look for a simpler (and more
elegant) method.

Tony Knowles     [log in to unmask]
                 [log in to unmask]

----------
> From: Greenlandair Inc. IT-dept. <[log in to unmask]>
> To: [log in to unmask]
> Subject: Re: Problem with devctrl online option
> Date: Tuesday, 14 October 1997 11:56
>
> Tony,
>
> We use a couple of simple command-files to perform this. Not breathtakin'
> elegant, but it works - and has done so for quite some years.
>
> Our backup-stream contains this:
> :
> !
> !setvar tape_ready true
> !
> !chktape1.com.sys
> !
> !if tape_ready = false then
> !   tellop *** THERE IS NO TAPE...
> !   -- perform relevant actions like logging it properly, aborting the
> backup, and ....
> :
>
> chktape1 does the following:
> purge temp
> showdev 9 > temp
> save temp
> run ci.pub.sys;info='chktape2.com.sys';stdin=temp;parm=3
>
>
> chktape2 does the following:
> input z
> input z
> setvar z lft('!z',60)
> setvar l len('!z')
> if !l < 16 then
>    comment There is not a tape mounted, ready for use
>    setvar tape_ready false
> endif
> deletevar z
> deletevar l
>
> Something to work on...
>
> Hans-Ole Kaae
> Greenlandair Inc.
> [log in to unmask]
> http://www.greenland-guide.dk/gla/
>
>
> ----------
> > Fra: Tony Knowles <[log in to unmask]>
> > Til: [log in to unmask]
> > Emne: Problem with devctrl online option
> > Dato: 12. oktober 1997 23:52
> >
> > I have just been trying to programatically determine whether a DAT
drive
> > has a tape loaded and is online. I thought I would try the online
option
> of
> > devctrl, as in
> >
> >         :devctrl.mpexl.telesup 7 nochange nochange online
> >
> > I figured that this would do nothing if the drive was online and would
> give
> > an error if it wasn't. The first part is true, the second part isn't.
> > Devtool seems to hang if there is no tape loaded. Break and abort or
> > abortjob fixes it but that wasn't quite what I had in mind.
> >
> > Any other ideas for checking the online or not state of a tape drive.
> >
> >
> > Tony Knowles     [log in to unmask]
> >                  [log in to unmask]