WD Sentinel RX4100 is the ideal rack mount storage server for small businesses. Its easy administration features include four drive bays with hot swappable design; redundant user-serviceable power supplies; user-serviceable fans & email alerts. In the event that an IT professionals assistance is needed, the WD Sentinel RX4100 allows them to manage the server remotely. Now thats easy! WD Sentinel RX4100 offers built-in i SCSI target functionality integrated within the dashboard to easily manage the setup, administration & deployment of i SCSI SAN storage. IT pros & advanced users have the ability to partition their WD Sentinel RX4100 for both NAS file-based storage as well as i SCSI-SAN with the i SCSI target solution powered by Star Wind. This capability enables the administrator to create multiple i SCSI targets to meet the specific needs of their dynamic IT environments.