Microsoft Knowledge Base Article 309043 contains the following summary:
This article describes how to create a RAID-5 volume on a remote Windows 2000 Server-based computer by using
the Disk Management snap-in in Microsoft Windows XP.
A RAID-5 volume is a fault-tolerant volume in which data and parity is striped across three or more physical disks. If part of one physical disk fails, you can recover the data on the failed disk by using the data and parity information on the functioning disks.
RAID-5 volumes are not available on computers running Windows 2000 Professional, Windows XP Home Edition or Windows XP Professional. However, you can use a computer running Windows XP Professional to create RAID-5 volumes on remote computers that are running Microsoft Windows 2000 Server, Windows 2000 Advanced Server, or Windows 2000 Datacenter Server. You must have administrative privileges on the remote computer in order to do this.