Ide Raid; Hard Drive Connection - HighPoint ATA-133 RAID User Manual

Introduction

1.2 IDE RAID

For a long time, RAID technology has been based on SCSI interface, and
mainly focused on high-end application. PC users and low-end business
application has been excluded from the RAID application due to the high cost
of SCSI RAID.
It is very lucky that, as the IDE RAID technology emerges recently, people now
can enjoy the RAID benefits at a pretty low cost.
IDE is another computer interface widely used by PCs. Due to the great
development of the PC market, the IDE interface devices' price has dramati-
cally dropped, while at the same time, their performance has greatly improved.
Below is a performance&cost brief comparison between IDE RAID and SCSI
RAID:
Interface
N umber of C hannels
Maximum number of Drives
C ontroller
Maximum Data Throughput
C ard
Supported RAID Levels
Price
Spin(rpm)
Hard
C apacity
Drive
Price
Note: The price may vary depending on different period and different market.
Due to the high performance and low cost, IDE RAID has been widely ac-
cepted by the market as a cost-effective RAID solution.

1.3 Hard Drive Connection

Note:
1. " "means it is better to connect hard drive at this position.
2. When connecting hard disk, pay much attention to its Master -Slave jumper
setting: if two hard disks are connected onto one IDE cable, one disk
should be set as master while the other as slave.
ID E RA ID
P C I to A TA 133 P C I to Ultra160 S C S I
2
4
133 x 2 MB /s
0, 1, 0+1, JB OD 0, 1, 0+1, 3, 5, JB OD
100$
7200
40G
120$
S C S I RA ID
1
15
160 MB /s
499$
10000
33G
500$
1-2