Raid Controller Board - NEC N8100-1078F User Manual

RAID Controller Board

The RAID controller board is an optional PCI board developed to improve data reliability. The
board can be installed to use the hard disks in the 3.5-inch disk bay of the server and those in
additional disk unit in the disk array configuration.
The server can include the following optional RAID controller.
SCSI disk array controller (N8103-80F)
SATA disk array controller (N8103-78F)
See the manual that comes with your RAID controller for detail.
Cautions
Note the following on the configuration of a disk array.
The disk array controller board is easily affected by static electricity. Handle the disk
array controller board after making your body contact with a metallic frame section of the
server to discharge the static electricity on your body. Do not make bare hands contact
with terminals and components on the disk array controller board. In addition, do not
put the disk array controller board on a desk directly. See "Static Precautions" for details
of the static electricity.
To change the disk array configuration or the RAID, the hard disks must be initialized.
If important data is saved in the hard disks used to constitute a disk array, first back up the
data in other hard disks before installing boards and configuring the disk array.
More than one hard disk is required to configure a disk array.
Hard disks used in the disk array configuration should have the same disk revolution rate
and capacity in packs.
See "PCI Board" in this Chapter for the slot in which a board can be installed.
Several RAID (Redundant Arrays of Inexpensive [Independent] Disks) levels can be set
for the disk array configuration in the server in which disk array controller boards are
installed. Refer to the online document saved in "NEC EXPRESSBUILDER" CD-ROM
coming with the server or the documentation coming with the disk array controller for
details of the available RAIDs, data transfer rate, and array configuration.
The available capacity of the hard disks in the disk array configuration is lower than the
total capacity of the hard disks configuring the disk array while the disk reliability is
improved.
Replacement of disk array controller board
Restore the disk array configuration information in the disk array controller boards. Use
the configuration utility for the restoration. Refer to the online document saved in "NEC
EXPRESSBUILDER" CD-ROM coming with the server or the documentation coming
with the disk array controller for details. If a disk array controller is replaced, create the
configuration information newly by using the proper utility.
Only one disk array controller board can be installed in the server.
Upgrading Your Server 9-23