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RAID0 Questions

Posted: Sun Feb 08, 2009 11:59 am
by Skippman
I recently ordered two of those WD 640G AALS drives to replace my 1st gen 74G Raptor. I planed to run these in Striped/RAID0 mode. I only have the onboard RAID controller on my P5W DH motherboard currently. I know superior speeds can likely be achived using a stand alone RAID controller but I'm not particularly interested in spending $100+ on such a card to only gain minimal improvements.

Will I be able to run these at RAID0 using this board or will I need a PCI-E SATA RAID controller?

Should I even bother striping them or will the perforamance improvement be negligable?

Re: RAID0 Questions

Posted: Sun Feb 08, 2009 2:04 pm
by Apoptosis
you'll see a big improvement running RAID 0 with the onboard controller... I'd say 90% of the people that run RAID on their personal PC don't use hardware raid.

Re: RAID0 Questions

Posted: Sun Feb 08, 2009 2:15 pm
by Skippman
I assume if I ever swap out the board the striped volume will be lost and I'll have to format and reinstall or re-image from a drive image correct?

Re: RAID0 Questions

Posted: Mon Feb 09, 2009 6:52 am
by bubba
yup

Re: RAID0 Questions

Posted: Tue Feb 10, 2009 9:15 am
by Skippman
I have a Raptor drive which will be left over after installing the new RAID. I have considered using it as just for my Windows Swap file. Do you think I'd gain any performance by doing this or will I actually loose some speed?

Re: RAID0 Questions

Posted: Tue Feb 10, 2009 10:52 am
by hnzw_rui
Skippman wrote:I know superior speeds can likely be achived using a stand alone RAID controller but I'm not particularly interested in spending $100+ on such a card to only gain minimal improvements.

Will I be able to run these at RAID0 using this board or will I need a PCI-E SATA RAID controller?
I read a bunch of discussions regarding RAID and from what I've seen, the consensus seems to be for simple RAID0 or RAID1, there's no need for a dedicated controller. Performance benefits will only be noticeable when you go RAID5/6.

As for swap, no idea. Bump up the RAM so you don't need the swap file. :P

Re: RAID0 Questions

Posted: Tue Feb 10, 2009 11:12 am
by Skippman
hnzw_rui wrote:
Skippman wrote: As for swap, no idea. Bump up the RAM so you don't need the swap file. :P
Well, I'm running 8GB right now which is as much as the board will handle so I'm not even sure how much the swap file is used. Was just a thought of how to use some existing hardware on hand. I might just end up selling the Raptor drive. The 200GB is going to be my servers new boot drive.

Re: RAID0 Questions

Posted: Thu Feb 12, 2009 8:59 am
by Skippman
Well, I'll be installing the RAID today when I get back from breakfast at about 11CST. Before I got down to the nitty gritty I took the change to read Nates RAID Guide which, ironically enough, was the first one Google brought up when I searched. I was reading about the Stripe Size. Nate recommended setting it to 128K but other RAID 0 guides I've read recommended far smaller sizes such as 16K. I was hoping to get some personal opinions on this before I do the nasty today and gut/reinstall my system.

What experience have you other RAID 0 users had? Is 16K best, or is 128K best?

Re: RAID0 Questions

Posted: Thu Feb 12, 2009 2:23 pm
by Skippman
Well, i'm now running in RAID 0 on my two new WD Caviar Black drives. Things seem to be going well and Vista's installed. Thanks for the tips guys.

Re: RAID0 Questions

Posted: Thu Feb 12, 2009 2:29 pm
by dicecca112
Skippman wrote:Well, I'll be installing the RAID today when I get back from breakfast at about 11CST. Before I got down to the nitty gritty I took the change to read Nates RAID Guide which, ironically enough, was the first one Google brought up when I searched. I was reading about the Stripe Size. Nate recommended setting it to 128K but other RAID 0 guides I've read recommended far smaller sizes such as 16K. I was hoping to get some personal opinions on this before I do the nasty today and gut/reinstall my system.

What experience have you other RAID 0 users had? Is 16K best, or is 128K best?

Trial and error really, it depends on the drives. SSDs work well ( at least OCZs) with a 128k stripe size

Re: RAID0 Questions

Posted: Fri Feb 27, 2009 7:09 am
by higgamo
Skippman wrote:I assume if I ever swap out the board the striped volume will be lost and I'll have to format and reinstall or re-image from a drive image correct?
well i switch out a board and it still recognized the striped. but it was a 2 boards that uses nvidia raid systems so that might be why =o.

Re: RAID0 Questions

Posted: Wed Mar 04, 2009 6:37 pm
by Skippman
Has anyone messed with RAID 10? I'm considering going to that when I do my next build this fall. That new Corsair case really has me thinking and a close call with my stipe set the other day has me a bit paranoid.