User`s guide

10-4
Connecting with a Disk Expansion Unit
A disk expansion unit is an exclusive device in which you can install up to 14 hard disk drives. (The number of hard
disk drives depends on the model.) The server containing a Disk Array Controller can connect to one or two of these
devices. For more information on the number of devices connected, see the manuals provided with the Disk Array
Controller and disk expansion unit.
IMPORTANT: A disk expansion unit is provided without hard disk drives. You need to
purchase hard disk drives separately.
An optional cable may be required to connect with a disk expansion unit. Refer to the manual of the disk expansion unit
for more information.
Connect the disk expansion unit, use WebBIOS or the Universal RAID Utility to set the disk expansion unit in a RAID
System (RAID0, RAID1, or RAID5). For more information, refer to the manual provided with the board.
When a disk expansion unit is set in a RAID System, you can use the "Auto Rebuild" feature of the Disk Array
Controller to restore data if one of the hard disk drives installed in the disk expansion unit fails (hot-swap the defective
hard disk drive).
IMPORTANT: When the Disk Array Controller is installed, do not let the system enter
hibernation or standby mode.
(IDE device)
Optical disk drive
5.25-inch
device bay
3.5-inch hard
disk drive bay
Hard disk drives
are optional.
Motherboard
SAS cable
IDE cable
PCIe #5
PCIe #4
PCI-e #3
PCI #2
PCI-X #1
PCIe #6
IDE
ID3
ID2
ID1
ID0
Internal RAID
controller
Disk Array Controller