NEXCOM NISE 3140 - Manual (Page 87)

Copyright © 2009 NEXCOM International Co., Ltd. All Rights Reserved. 74 NISE 3140, NISE 3140E, NISE 3140P2, NISE 3140P2E User Manual
Appendix D: RAID Configuration
A
ppendix
d: RAid C
onfiguRAtion
(
only on
nISE 3140M / nISE 3144 S
ErIES
)
The NISE 3140M / NISE 3144 Series attached with FAN models supports
RAID 0 and RAID 1.
RAID Levels
RAID 0 (Striped Disk Array without Fault Tolerance)
RAID 0 uses two new identical hard disk drives to read and write data in
parallel, interleaved stacks. Data is divided into stripes and each stripe is
written alternately between two disk drives. This improves the I/O perfor-
mance of the drives at different channel; however it is not fault tolerant.
A failed disk will result in data loss in the disk array.
RAID 1 (Mirroring Disk Array with Fault Tolerance)
RAID 1 copies and maintains an identical image of the data from one
drive to the other drive. If a drive fails to function, the disk array manage-
ment software directs all applications to the other drive since it contains
a complete copy of the drive’s data. This enhances data protection and
increases fault tolerance to the entire system. Use two new drives or an
existing drive and a new drive but the size of the new drive must be the
same or larger than the existing drive.
To enable the RAID function, the following configurations are required.
1. Connect the Serial ATA drives.
2. Configure Serial ATA in the Award BIOS.
3. Configure RAID in the RAID BIOS.
Step 1: Connect the Serial ATA Drives
Refer to “Installing a SATA Hard Drive” in chapter 3 for details on con-
necting the Serial ATA drives.
Make sure you have installed the Serial ATA drives and connected the data
cables otherwise you won’t be able to enter the RAID BIOS utility.
Treat the cables with extreme caution especially while creating RAID. A
damaged cable will ruin the entire installation process and operating sys-
tem. The system will not boot and you will lost all data in the hard drives.
Configuration