RAID 0 Question

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diesel43078

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I recently took the SSD out of my gaming rig to put it in my laptop. I replaced the SSD with 2 WD caviar black 500GB HDD's in a RAID 0 array. My question is, one caviar black scores a 5.9 on the windows experience index, and RAID 0 increases drive performance, so why is my HDD score still 5.9 even in RAID 0? It's a fresh installation of windows 7 professional, with all updates. Any insight, advice, or ideas would be greatly appreciated.

Thanks,

Anthony
 

crjdriver

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Are you using a real raid controller or onboard raid?
If you are using onboard raid, then I would NOT be expecting a big increase in performance. IMO onboard raid is next to useless.

BTW I would not be putting too much faith in the windows experience index. Use something like hd tune to benchmark your drives.
 

crjdriver

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Jmicron is probably the most troublesome of all of the onboard raid controllers. Intel being about the best and yours the worst.

FWIW if you really really must have raid, then go with a real raid controller like a promise or highpoint raid card.

Here is an example of a quality raid card
http://www.newegg.com/Product/Product.aspx?Item=N82E16816102080

Here is a link to hdtune I would download this and see what it says about your array. I would expect to see something like 90~110mps avg speed.
 

diesel43078

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I'm not putting too much weight in the WEI, just wondering why it isn't any different than a single drive.
 

Triple6

Rob
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WEI isn't perfect. Have you actually run a hard drive test before and after? Something like HT Tach or HD Tune?

Curios, what did your SSD score?

Also maybe this has some relevance: http://www.blogsdna.com/2133/fix-low-hard-drive-windows-experience-index-wei-score-in-windows-7.htm

And the JMicron controllers aren't the greatest. By the way, where did you get the JMicron drivers from? Windows Update, Gigabyte, or JMicron? Controllers like this can be heavily dependent on the driver, try the JMicron site drivers: ftp://driver.jmicron.com.tw/
 

diesel43078

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The SSD scored a 6.8. I haven't ran a HDD benchmark yet. I'm probably going to google the HD tach results for a single caviar black, and run a benchmark on mine to compare. Since I downgraded directly from a SSD to the RAID array, I have no idea as to whether or not it's actually performing better than a single drive. I'm gonna run some tests and see what I come up with.
 

Triple6

Rob
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You may get better results using the Intel RAID, as crjdriver mentions they tend to be the best of the onboard/integrated controllers.
 

diesel43078

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Ran a HD Tune benchmark and the average transfer rate on the RAID 0 array was 158.3. The only test results I could find after a quick search was a caviar black 640 with an average around 95. The benchmark is showing that it's obviously faster. I wonder why windows doesn't think so.
 

Triple6

Rob
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WEI is just a basic ranking system for the average Joe to know what he has, its means nothing to enthusiasts.
 

diesel43078

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Yeah I understand that, maybe I'm just being too picky. 3dmark vantage score is 32,000+, and even with mechanical hdd's it's still pretty fast. Doesn't boot as quickly as it did with the ssd, but it's still snappy, apps open quickly, and write speeds are pretty good. I know it's fast, that's all that matters I guess, lol. I guess it just bugs me to see 7.8's and 7.9's all the way down the list except for the hdd.
 
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WEI will always score to the lowest performing item.

WEI means nothing, it can rank a 4870 card very high when a new 5870 is easily a much faster product. So for the most part, WEI is useless.

While a benchmark program may show a faster transfer-rate in its test, best possible, its not the same as real world. A drive error, glitch anything minor can destroy the RAID 0. Want faster performance, use a quality SSD unit.
 

diesel43078

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I have an ssd, but I took it out to put in my laptop. The RAID array is fast enough for just playing games and browsing the web.
 
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