Dual adaptec configuration ?

I have Tyan S2720 UGN with dual adaptec 160 ( AIC-7899W) on board.
Fsys.aha8scsi detect two controlers and start two at once,
but I want to start one on first and one on second eg.
Fsys.aha8scsi -v aha8scsi -p1 &
Fsys.aha8scsi -v aha8scsi -p2 &
How to do it ?

Mariusz Hawryluk
PBiWH “Next” s.c.