Raid-0 Array's Pinching Space

[dar1us]

This is probably obvious to some, but I am just checking.

I got 2 hard-disks, and a KG7-Raid from Abit, the board works a treat, I am currently running the 2 hard-disks in JBOD (for movies...) as when I run try them with RAID-0 it only gives me a total of 80gigs (40+60 gig hard-disks). I know I can support 100 gigs or more, at JBOD I got 98.something gigs of space. I would much prefer the use of this in raid0 for capturing better.

If you use 2 disks of different sizes, will it only let you create a 0 array upto 80 gigs or something? I know ideally, the disks should be exacto-same-o. IE 2x60gig disks

60gig is a 60gxp (replaced:) from IBM (7200rpm)
40gig is a Maxtor (5400rpm - first hand (surprisingly fast as it is 5400, doesn't top my massive Baracuda's:).

The JBOD array works fast, I can transfer a 700 meg file (DVD back-up) in about 30 seconds between the 2 (originating from the barra) but when capturing at about 15 MEGS (not megabits) per second, it all really counts. I can capture easily at 15 megs per second now, but when you go too much higher, you get LAG, it works safely very fast, but the idea of raid0 made me get this board (also, I have like 10 hard-disks in here) (others on external ATA133/Raid card (makes no difference if it is in or not, I run everything at 133 (no raid) on that card, it is only for movies and things like that.

Cheers for any assistance

[sekxx]

As your said, when playing with raid 0, The real size will always be:
(Min Size From both HD)*2.
You can't do 100G from 40+60Raid0
;).

[dar1us]

I thought something like that before posting. But cheers 4 clearing it up.

100gig JBOD, every little helps!

[jeremymacmull]

sorry if im ignorant

but what is JBOD??

JEREMY

[dar1us]

Just a bunch of disks, merging 2 (or more?!) disks into one - the system then (after raid) reads it as one Disk called JBOD Array 1

It has no fancy technology behind it like striping, just joining. They after joining, you may wish to make some smaller partitions.

[jeremymacmull]

Ok i get that,

Next silly question how does one do it in 2k or can it be done in 2k

are there any performance improvements or hits etc and why do it at all (eg so u have one hdd with 120 gb instead of 3 X 40)

Jeremy
Sorry again about silly questions!!!

[Beastie Boy]

http://www6.tomshardware.com/howto/20010906/raid-02.html

[gabest]

Once I put together two 40gb maxtors in raid0, but one of them was running at 5400 while the other at 7200 rpm and (according to hdtach) in average this solution was slower than using them separately. It is better to use two identical drives for raid.