1. Installing Internal Optional Devices
Express5800/R120d-2E User’s Guide
110
Chapter 2 Preparations
1.18.2
Notes on configurating 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 the optional RAID Controller (N8103-149) is used, the RAID System of RAID5/RAID6/RAID50/RAID60
cannot be built.
The minimum number of Hard Disk Drives required to set up a RAID System
RAID level
N8103-149 N8103-150/151
RAID 0
1
1
RAID 1
2
2
RAID 5
3
RAID 6
3
RAID 10
4
4
RAID 50
6
RAID60
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 (N8103-149/150/151).
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).
