what is raid

nakkaya · 02-14-2003, 01:26 AM

i always heard of raid or raid controller what is that and what is it used for?

carlywarly · 02-14-2003, 02:03 AM

RAID is an acronym for Redundant Array of Inexpensive (or Independent) Disks. A RAID array is a collection of drives which collectively act as a single storage system, which can tolerate the failure of a drive without losing data, and which can operate independently of each other.

The controller merely allows the process to happen using several h/disks.

Stingray · 02-14-2003, 02:32 AM

Raid comes in Different forms
RAID 0: Striped Disk Array without Fault Tolerance
RAID 1: Mirroring and Duplexing
RAID 2: Hamming Code ECC
RAID 3: Parallel transfer with parity
there R plenty more formats
check this out
http://www.acnc.com/04_00.html
u need at least 2 disks to get the best out of the Raid format the disk must be the same size and type

Sting

nakkaya · 02-14-2003, 11:23 AM

is there a way to make sure that i have a raid controller on my machine

Stingray · 02-14-2003, 11:37 AM

Do u have 2 disks
if u dont then theres no point in having a controller
i think red hat Psyche does support raid the controller is software so if u dont have it check out Red hat support site for 1

nakkaya · 02-14-2003, 11:39 AM

ok thx tutorial helped me alot

michaelk · 02-14-2003, 01:06 PM

What kind of hardware do you have?

Check your motherboard specs to see if you have an integrated RAID controller. If you have 4 IDE channels in your PC then you probably do have an integrated RAID controller.

If you don't have an integrated controller then you will need to purchase a PCI card.

nakkaya · 02-14-2003, 01:27 PM

but i can use hardware raid instead of pci card right?

michaelk · 02-14-2003, 02:27 PM

Does your motherboard have an onboard RAID controller?

Hardware RAID either consists of an onboard i.e integrated controller or a PCI controller card. If your motherboard does not have an onboard controller then you are forced to get a PCI card.

In addition verify that the RAID controller is compatable with RH.