User's Guide

1. Installing Internal Optional Devices
Express5800/R110d-1E, E110d-1 User’s Guide
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Chapter 2 Preparations
1.9.2
Notes on setting up a 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 on-board RAID Controllers or the optional RAID Controllers (N8103-128/129) are used, the RAID
System cannot be built in RAID5/RAID6.
The minimum number of Hard Disk Drives required to set up a RAID System
RAID level
On-board RAID Controller or
N8103-128/129
N8103-130/134/135
RAID 0 1 1
RAID 1 2 2
RAID 5 3
RAID 6
N8103-134/135: 4
N8103-130: 3
RAID 10 4 4
RAID 50 6
• Use SAS/SATA Hard Disk Drives or SSDs that have the same capacity 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 the EXPRESSBUILDER. If you wish to install the OS manually, use a
RAID System Configuration utility (WebBIOS or SuperBuild utility). The utility can be run during POST
which starts immediately after the server is turned on. For details on the procedure of configuring a
Logical Drive, refer to Chapter 2 (4. RAID System Configuration) in "Maintenance Guide" or the manual
supplied with the optional RAID Controller (N8103-128/129/130/134/135).
Important
• Do not change the RAID System mode to hibernate.
• Build a Disk Array in the RAID System using Hard Disk Drives that have
the same specifications (capacity, rotational speed, and standard).
• Before configuring RAID System using EXPRESSBUILDER, be sure to
clear the configuration information of the RAID Controller by referring to
the manual of the relevant controller.
• The display of slot numbers (SLT) for Hard Disk Drives in the OS system event log varies depending on
the RAID Controller to be connected.
The tables below show the insert position of Hard Disk Drives and slot numbers (SLT). The information
on these tables is important when checking logs or replacing a Hard Disk Drive.