Mirroring

How to plan and do a mirroring for hp netserver e800 pentium 3, ultra3 scsi hdd with integrated dual-channel ultra2 scsi controller. We’re using win2k server and plan to run sql server 2000. How many hdd i need to support this mirroring? Is it 1 forsql server, 1 for w2k server and 1 for mirroring.
May i know the step by step procedure and the requirement?