> Is there any way to BACKUP REMOTE DATABASE TO A LOCAL HARD DISK WITH
> jaybird ?!

No, this is not possible. Or at least not directly.

> I know that the above pice of code create backup database on remote
> machine.
> But I though: If gbak can, the jaybirt schould can, too.
>
> So jaybirt can or can't do this ?

No, it can't. gbak can this because gbak knows the backup file format.
There is no other commonly used utility that can do this except gbak.

So, either fork the gbak process or use scp to load it from remote. The
latter is also preferred from the performance POV (wire protocol is
quite chatty).

Roman