To create them is easy; from an admin command line type:

HELP GENERATE BACKUPSET


You will see the command you run is like this:

GENERATE BACKUPSET NODENAME   descriptionyoumakeup DEVCLASS=ddddd
RETENTION=numdaystokeepthebackupset

TSM will pull a scratch tape from DEVCLASS dddd and take care of the rest.

You can also do this from the web GUI by clicking OBJECT VIEW -> Clients  ->
Client NODES -> Backupsets, then pull down GENERATE BACKUPSET and choose a
device class and expdt.

The only unpleasant part is that the backupsets you create are tracked only
in VOLUME HISTORY, not in storage pools, and DRM doesn't support vaulting of
them (and we pay EXTRA for DRM , right?)  However the Autovault product does
support vaulting of the backupsets you create, if you are using that product
instead of DRM for vaulting.