Page 1 of 1
Can someone please explain SATA/RAID to me?
Posted: January 28th, 2006, 22:38
by Wiggy
Right, I'm going to be building a SATA system for myself, and I don't know what most of these things to do with the drives mean: i.e. SATA 0/1/0+1/whatever. Is it important or is it just a case of plugging in and hoping it works?
EDIT: Oh, and when I say 'someone', I mean "someone, but probably Berk".
Re: Can someone please explain SATA/RAID to me?
Posted: January 28th, 2006, 23:16
by spoodie
Wiggy69 wrote:SATA 0/1/0+1/whatever
I'm guessing these numbers are referring to the RAID modes supported by the motherboard, not anything to do with the SATA system itself. SATA drives are usually a case of plugging in and away you go and you probably don't want to worry about the RAID stuff unless you know what you are doing. More info on RAID
here.
Bottom line: RAID is not normally used on desktop PCs, it's mostly used on servers for extra speed and to avoid downtime if a drive fails.
Posted: January 29th, 2006, 0:58
by FatherJack
Yep, SATA is a type of disk, better than PATA (IDE) it's just the new fancy-pants type of disk used in modern PCs. AFAIK, it's just plug and go, just like the old ones.
RAID is a technology you can apply to any type of disks to improve performance and resiliency. Level 0 "stripes" the data across multiple disks, increasing performance; Level 1 "mirrors" all data for safety so that half the disks can fail, yet you will still have a full copy on the other disks (this halves your total capacity, however); Level 0+1 is just a striped mirror, so you get both benefits at once.
Posted: January 29th, 2006, 1:04
by Dr. kitteny berk
FatherJack wrote:Yep, SATA is a type of disk, better than PATA (IDE) it's just the new fancy-pants type of disk used in modern PCs. AFAIK, it's just plug and go, just like the old ones.
it's an interface, it's the cables and the controllers that're different.
usually plug and go, but sometimes can require drivers for older mobos
RAID is a technology you can apply to any type of disks to improve performance and resiliency. Level 0 "stripes" the data across multiple disks, increasing performance; Level 1 "mirrors" all data for safety so that half the disks can fail, yet you will still have a full copy on the other disks (this halves your total capacity, however); Level 0+1 is just a striped mirror, so you get both benefits at once.
this. however RAID is basically useless for home users.
Posted: January 29th, 2006, 1:14
by deject
Dr. kitteny berk wrote:however RAID is basically useless for home users.

this, even though I want a 5 disk RAID 5 array...
Posted: January 29th, 2006, 1:29
by friznit
Plug and go if you you are upgrading. SATA is actuallu easier to install that IDE in this sense - and the cables are a damn sight neater. However, if you're doing a fresh windows installation, make sure you have the right SATA drivers on a floppy and then hit F6 for 'RAID or 3rd Party Drivers' when prompted. Took me fuckin ages to work this out.
Also worth having SP2 streamed onto Windoze XP now to avoid the partition size limitation (sbuject of another threat I think)
Posted: January 29th, 2006, 1:43
by ProfHawking
deject wrote:Dr. kitteny berk wrote:however RAID is basically useless for home users.

this, even though I want a 5 disk RAID 5 array...
I think now is a good enough time as any to pimp my new & improved server rig
2 x xeon 2.4ghz
2 x 1024mb ddr400
8 x 200gig raid 5 storage
2 x 80 gig raid ? system
Im slightly confused by the system raid. I want raid 0+1 - fast/safe
however when building the array it gave options for mirror or performance. i chose performance. it then built a 160gb array. i take it that aint right. Somewhere it recons that that is 0+2!?? Beeerrrrk! Help please!!
Posted: January 29th, 2006, 1:48
by Dr. kitteny berk
mobo (or controller your boot discs are on)?
ps. it is _not_ RAID2, it's not used.
Posted: January 29th, 2006, 2:20
by ProfHawking
thankye berk
i apparently have raid 0 system. thats good i hope

Posted: January 29th, 2006, 17:11
by Hehulk
ProfHawking wrote:thankye berk
i apparently have raid 0 system. thats good i hope

From my very limited knowledge:
Does it work?
If yes, then yes it's good.
If no, then no it's not.
Posted: January 29th, 2006, 17:34
by deject
ProfHawking wrote:thankye berk
i apparently have raid 0 system. thats good i hope

RAID 0 is good for say, a video editing scratch disk. If you're not doing anything super-bandwidth intensive, you're just doubling your exposure to data loss. Seriously, RAID 0 doesn't have any real world benefits for most people.
Posted: January 29th, 2006, 18:10
by Roman Totale
*strokes chin thoughtfully*
Posted: January 29th, 2006, 20:20
by pixie pie
Roman_Totale wrote:*strokes chin thoughtfully*
Are you thinking about the possibilities for more porn?..
Posted: January 29th, 2006, 21:27
by TezzRexx
pixie pie wrote:Roman_Totale wrote:*strokes chin thoughtfully*
Are you thinking about the possibilities for more porn?..
let's hope so
Posted: January 29th, 2006, 22:01
by ProfHawking
porn WTF!
This is my pr0n server

Posted: January 30th, 2006, 18:59
by pixie pie
You reckon you could send me some? Heh heh..
But in all honesty what would you use that for?.. and surely it would be more efficient to have multiple networked PC's with a sensible amount of hard-drives each?
Posted: January 30th, 2006, 19:18
by Hehulk
no doubt someone (Berk) will correct me if I'm wrong on this, but then you'd be adding more latency to the whole thing, making it ever so slightly slower. Somehow I doubt you'd notice the difference though.
Posted: January 30th, 2006, 19:21
by Dr. kitteny berk
probably wouldn't make much difference.
prof's network is setup pretty well anyway (gigabit from the server to a gbit switch, then 10/100 from there (means upto 10 clients will get 100mbit sustained))
the main difference between raid in one computer, and using a cluster is cost, and heat.
remember, once you start running multiple computers, they'll eat at lot of power, which = money, heat and noise.
not to mention that it's a bastard to remember which server you saved stuff on.
