HP LC3 Netserver and upgrade with external disk?

hi!
i want upgrade a HP LC3 netserver with a external scsi-disk…
for this is needed a exterenal scsi-box, a scsi harddisk (36GB) and a scsi controller (adaptec 29160)

is this possible?

  1. does a HP LC3 work with 3 scsi-controllers (HP Netraid, 2940 on board, and 29160 for external scsi-box)? (IRQ´s, ???)

  2. does NT4.0 start further from the startpartition on the netraid controller or have problems if there exist than a new scsi hard-disk?
    (inaccessable boot device)

  3. any other issues?

thanks for any comment…
martin.