For optimum speed and fault-tolerant system SSW recommendation for file servers and database servers is as below:
OS - Windows 2000 Server
CPU - P III 550
Memory - 256 MB (100 Mhz)
HDD - RAID 5 (3 disks of 17 GB)
Case - Maxi Case
Optional - UPS
RAID –5: A fault-tolerant volume with data and parity striped intermittently across three or more physical disks. Parity is a calculated value that is used to reconstruct data after a failure. If a portion of a physical disk fails, you can recreate the data that was on the failed portion form the remaining data and parity. You can create RAID-5 volumes only on dynamic disks, and you cannot mirror or extend RAID-5 volumes.