What is RAID ?

[jmiller18]

What is RAID on SATA hard drives ?
I do not know because I am using IDE on my current system, and on my next system I build, I want to use SATA. But first I would like to know about SATA and the RAID feature before I buy.

Also SATA 150 = SATA 1.5gbs ? right ?
Also what is SATA ll ?

Sorry for the newbie question ?

 

[AnonymousI]

Redundant Array of Independent Disks, a category of disk drives that employ two or more drives in combination for fault tolerance and performance. RAID disk drives are used frequently on servers but aren't generally necessary for personal computers.

http://www.webopedia.com/TERM/R/RAID.html

SATA II is another specification of SATA which allows drives to transfer data up to 3 Gb/s (theoretical speed)

 

[CJ1]

RAID 0 - Striped Array
Combines at least 2 (ideally) identical hard drives into one to increase performance.
Failure of any drive results in loss of all data.

RAID 1 - Mirrored Array
Copies one disk data to the other ongoing. If either drive fails, the other continues to function as a single drive until the failed drive is replaced. Drives ideally should be identical.

A serial ata II Hard drive would provide better performance than SATA provided the motherboard supports it. 3 Gb/s transfer rate.

However, real world performance benefits are nothing startling. The best you'll get is a few MB/s extra transfer rate and a few seconds quicker level load time in games.