You need at least TSM V 4.1.3 to have support for LTO devices !!

When your are sure about this you can use the command (for example) :
def devclass tape_class devtype=lto format=drive library=ltolib

Wouter Verschaeve


>===== Original Message From "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT 
>EDU>
=====
>>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