Array Controllers

[quenault]

I'm starting to build servers at work and learning about all the components and their purpose. I was asked what an Array Controller was and I was unsure! Can anyone tell me what an Array controller is and what is its purpose?

Kind Regards
C

 

[franklin97355]

try here

http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=array+controller

 

[Bobg1]

In brief, an array controller controls several disk drives at one time, for either improved performance (speed) and/or data integrity.

 

[technome]

Better spend a few days doing research/understanding before
purchasing

Have built about 24 servers in the last couple of years, all state of the art.

Description of raid

http://www.pcguide.com/ref/hdd/perf/raid/index.htm

You want either an Adaptec 2 channel 2200s, or a Lsilogic MegaRAID SCSI 320-2 ( $ 450., purchased from Lsi directly as an "Evaluation" board). From reviews the Adaptec is faster
Definitly get ultra 320, 2 channel controller, not a single channel, unless your array will be under 100 Gig

Motherboard and case...
supermicro, not cheap

http://www.supermicro.com

Seagate scsi drives, Cheetah 10k rpm or 15krpm

If you supply more info about needed array size, ram requirements, cpu speed etc., you will get better replies