Internal Cabling Diagrams 10-7 RAID5 (striping + parity)Data is "striped" across three physical disk drives. For data redundancy, drives areencoded with rotated XOR redundancy.IMPORTANT: Because data is read from or written to any of three hard diskssuccessively, the disk access performance is inferior to that for asingle disk. Because the parity data is saved, the logical capacity is lower thanthe total capacity of the three hard disks a little.To build a disk array, at least two hard disks are required. Use the SCSI cables sold separately forthe connection.In the figure below, the number of connectors varies depending on the type of the SCSI cable.If the optional hot-swap SCSI hard disk drive cage is installed in the server, connect the SCSI cableto the back of the optional hot-swap SCSI hard disk drive cage.Connect the LED cable provided with the server to the LED connector on the mother board and thedisk array controller for indicating the hard disk access status.The RAID configuration utility and RAID management utility are attached to the optional board.Refer to the manual that comes with the optional board for detail instruction.
