WINDOWS 2000 SERVER
SECURE FILE SYSTEMS WITH RAID
RAID provides a mechanism for fault tolerance and redundancy in file
systems. Windows 2000 Server supports three RAID levels: 0, 1, and
RAID 0 writes data across all volumes in the array to improve performance.
RAID 0 volumes, also called striped volumes, allow the reading and
writing of data to multiple disks in the array, which improves overall
However, RAID 0 volumes don't provide any redundancy. If a volume
in the stripe set fails, the entire array is lost.
RAID 1 comprises two identical copies of a volume, each residing on
a separate dynamic disk. This mirrored volume set provides redundancy
in the event that one disk fails; the second disk in the set can continue
to function until you replace the faulty disk and restore the mirror.
RAID 5 is a striped set with parity. It writes data across all volumes
in the set (striped) as in a RAID 0 array, but it adds parity data
to enable Windows to reconstruct the data if a disk fails.
A RAID 5 array requires at least three identical disks. The result
is a performance improvement from striping and redundancy from the
added parity data.
You can create each of these types of volumes on a Windows 2000 server
using the Disk Management branch of the Computer Management console.
The RAID capabilities built into Windows 2000 can be useful for improving
performance and adding redundancy in a variety of situations. If you
require even better performance or additional RAID features, consider
one of the many hardware-based RAID solutions available for the Windows