Velociraptor Raid 0 Help

Forum Storage : NAS/RAID Velociraptor Raid 0 Help

Hi all, lets start off with what i have.

Mobo: Gigabyte GA-H55M-USB3
CPU: i5 760 @ 2.8ghz
RAM: 4GB Adata
OS: Win 7 home premium 64bit
HDD: 2x Velociraptor WD3000HLFS in Raid0

I am having problems recording video with Fraps. The FPS drop way low (lower than they did when i Fraps'd with a single velociraptor hdd) and in general it just lacks the performance i expected when i bought the extra velociraptor (no increase in boot time or load times for various programs etc.).

The HDDs are connected via the 2 Gsata2 connections on the mobo which is the only way i can Raid0 (these are from what i have read controlled by the Jmicron chip which i have read sucks).

I have re installed many times to try to get something working the way i think its supposed to work. I have tried changing stripe sizes from 32kb to 128kb. 128kb doesnt record or playback (it even freezes my computer with no error messages when i try to play back Fraps'd video) and 32kb and 64kb connections fail to record at even the same performance as a single velociraptor did.

I have tried to google as many things on this problem as possible and i am at a loss and i hope you professionals can lend a guy a hand.

What can i do to make this setup run better. I am pretty sure its not running the way it is supposed to.

Also here is my HDtune benchmark for this raid0

Thanks for any help you can.

Reply to My1chris

What is it you're recording?

Reply to Railgun1369

I am Frapsing WoW raids. But the issues happen anywhere, not just in high load times, in classic areas when i get 160 FPS as soon as press the capture key it slams down to 2fps (occasionally**) and hangs there until i stop recording. I do understand there is thrashing involved when reading and writing to the same disks but it didnt happen this bad when I only had one velociraptor.

**sometimes it will record fine at 30-60fps (whichever i choose or even more) but sometimes it will hang at 2fps for no apparent reason.

I gave up on 128k stripe i couldnt get crap to work so i reverted to 64k and its playable.

Message edited by My1chris on 09-27-2010 at 02:08:46 AM

Reply to My1chris

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