Use Of Internal Hard Disk Drives In The Raid System; Notes On Building Raid System - NEC Express5800 Series User Manual

Chapter 2 Preparations
1.20

Use of Internal Hard Disk Drives in the RAID System

This section describes how to use the internal hard disk drives in the RAID System.
1.20.1

Notes on Building RAID System

Note the following points when building a RAID System.
The number of hard disk drives required varies in each RAID level.
●
If the optional RAID Controller (N8103-189/195) is used, the RAID System cannot be built in
●
RAID5/RAID6/RAID50/RAID60.
RAID level
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
RAID 50
RAID 60
In the RAID System, all the hard disk drives in a group (pack) must have the same capacity, interface type,
●
and rotational speed.
● Logical Drives can be created up to 31 pcs. Do not create more than 32 pcs logical drive.
● 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 Off-line Utility (Ctrl-R or HII). For details, see
●
Chapter 2 (2. RAID System Configuration) in "Maintenance Guide" or the manual supplied with the optional
RAID Controller (N8103-192/193/195/201).
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Important
If you use hard disk drives in the RAID System or change the RAID level, hard
disk drives are initialized. If the hard disk drive contains valuable data, be
sure to backup the hard disk drive before installing the RAID Controller and
configuring the RAID System.
Note
Build a Disk Array in the RAID System using hard disk drives that have the same
specifications (capacity, rotational speed, and standard).
Tips
Logical Drives can be created even with only one Physical Device.
●
When using SAS hard disk drive, SAS SSD, or SATA SSD, it must be
●
connected to RAID Controller.
The minimum number of hard disk drives required to set up a RAID
N8103-192/195
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Express5800/R120h-1E User's Guide
1. Installing Internal Optional Devices
System
N8103-193/201
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