I'm in the process of checking out a 3584 library with 10 Ultrium LTO drives
under TSM 3.7.4 and not having any problems.

You need to have both the current IBM SCSI drivers *and* the current IBM
Atape device drivers.

What do you get when you do an lsdev -Cc tape? Mine looks like this:

vistula:-:/home/s01_0125 > lsdev -Cc tape
smc0 Available 10-78-00-0,1 IBM 3584 Library Medium Changer
rmt0 Available 10-78-00-0,0 IBM 3580 Ultrium Tape Drive
rmt1 Available 10-78-00-1,0 IBM 3580 Ultrium Tape Drive
rmt2 Available 10-79-00-2,0 IBM 3580 Ultrium Tape Drive
rmt3 Available 10-79-00-3,0 IBM 3580 Ultrium Tape Drive

If you're seeing 'Generic SCSI Tape' here, you've got a backlevel Atape
device driver.

Tom Kauffman
NIBCO, Inc

> -----Original Message-----
> From: Damon Taylor [mailto:zdmt11 AT HOTMAIL DOT COM]
> Sent: Thursday, August 16, 2001 8:30 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: Re: Defining devicetype of LTO
>
>
>   From what I can tell from the doc that's available the
> "LTO" and Ultrium's
> aren't officially picked up until version. 4.1.4,,, I've
> downloaded it and
> we're discussing the upgrade... Thanks for everyone's help...
>
>
> >From: Richard Sims <rbs AT BU DOT EDU>
> >Reply-To: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
> >To: ADSM-L AT VM.MARIST DOT EDU
> >Subject: Re: Defining devicetype of LTO
> >Date: Thu, 16 Aug 2001 08:54:49 -0400
> >
> > >Thanks but I've tried it from the command line too and
> still get the
> > >following:
> > >
> > >define devc lto library=lto3583 estcap=100g devt=lto format=drive
> > >ANR2020E DEFINE DEVCLASS: Invalid parameter - LTO.
> >
> >Doing 'HELP DEFINE DEVCLASS' should show what devices your current
> >software is capable of supporting, as the embedded help info is
> >supposed to exactly match the software level.
> >
> >   Richard Sims, BU
>
>
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