Notes On Building Raid System - NEC Express5800/R120e-2M User Manual

Chapter 2 Preparations

1.21.2 Notes on Building RAID System

Note the following points when setting up a RAID System.
•
The number of hard disk drives required varies in each RAID level.
•
If the optional RAID Controller (N8103-172) is used, the RAID System of RAID5/RAID6/RAID50/RAID60
cannot be built.
RAID level
•
In the RAID System, all the hard disk drives in a group (pack) must have the same capacity, interface
type, and rotational speed.
•
If you intend to install the OS to the RAID System, the process from RAID configuration to OS installation
can be easily completed by using EXPRESSBUILDER. If you wish to install the OS manually, use RAID
System Configuration utility (WebBIOS). The utility can be run during POST which starts immediately
after the server is turned on. For details, see Chapter 2 (4. RAID System Configuration) in "Maintenance
Guide" or the manual supplied with the optional RAID Controller (N8103-168/172/173/174).
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The minimum number of hard disk drives
required to build a RAID System
N8103-172
RAID 0 1
RAID 1 2
RAID 5
RAID 6
RAID 10 4
RAID 50
RAID60
• Do not change the mode to hibernate while building a RAID System.
Important
• Build a Disk Array in the RAID System using hard disk drives that have the
same specifications (capacity, rotational speed, and standard).
Express5800/R120e-2M User's Guide
1. Installing Internal Optional Devices
N8103-168/173/174
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