> But for Cache, its backup facility  wants real tape hardware and resists
being s
> ent to a pipe.  In this case we have to create two databases, primary and
shadow
>  and for backup, quiesce the shadow, back up the underlying files and then
play
> forward the logs.

There may be another option. I think someone is marketing a Unix device
driver that acts like a tape drive but is really a front end for the TSM
API. Unfortunately, I don't remember who is doing this.