Use Of Internal Hard Disk Drives In The Raid System - NEC Express5800/R120b-1 User Manual

Use of Internal Hard Disk Drives in the RAID System

Using the RAID controller allows you to use hard disk drives in the device bays of the server and
those in the optional expansion disk cabinet in the RAID System.
IMPORTANT:
Making hard disk drives in the RAID System or changing the RAID level
initializes hard disk drives. If the hard disk drive to be configured in the
RAID System has your valuable data stored, make sure to make a backup
copy of the data in another hard disk drive before installing the RAID
controller and configuring the RAID System.
More than one hard disk drive is required to configure a Logical Drive.
Use hard disk drives of the same capacity and performance (e.g.,
revolution) for each pack to configure them in the RAID System.
NOTES:
Make sure of RAID levels and hard disk drives available for the RAID controller
to choose an appropriate controller.
A Logical Drive except for RAID0 increases disk reliability. However, the actually
available capacity becomes smaller than the total hard disk drive capacity in the
Logical Drive.
You can build a RAID System by using the Onboard RAID controller (LSI Embedded
TM
MegaRAID ) or optional RAID controller (N8103-129/130).
Onboard RAID Controller (LSI Embedded MegaRAID™)
If the setting of the RAID configuration jumper switch on the motherboard is changed, the internal
hard disk drives can be detected as RAID hard disk drives. See the figure below.
NOTE:
The RAID system is disabled in the factory settings.
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