permission for Tivoli account

Hi,
we have 2 instances of sql 2000 on 1 server
SQL123(production) and SQL123\Biztalk (production for Biztalk)
SQL123 run under acccount proddomain\SQL123
SQL123 run under acccount proddomain\SQL123Biztalk
We plan to backup db using Tivolion on both instances
We want to create service account proddomain\tivoli to run tivoli
with minium rights on SQL123 and proddomain\SQL123Biztalk
What is minimum set permissions needed for tivoli ?
Thanks
Alexcorrection
Hi,
we have 2 instances of sql 2000 on 1 server
SQL123(production) and SQL123\Biztalk (production for Biztalk)
SQL123 run under acccount proddomain\SQL123
SQL123\Biztalk run under acccount proddomain\SQL123Biztalk
We plan to backup db using Tivoli on both instances
We want to create service account "proddomain\tivoli" to run tivoli
with minium rights on SQL123 and proddomain\SQL123Biztalk
What is minimum set permissions needed for tivoli ?
Thanks
Alex