My 7200.10 RAID 0 is a little slow?

Neolink

Neolink

Neolink

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I setup my new 7200.10's in RAID-0 last night, everything seemed fine until i ran a couple of benchmarks and compared the results to a few others in another thread here...mine seem slower than most of the peoples on here! . I read that you have to take the jumper off of the back of these HDD's, but there was not one on there in the first place as far as I could see, anything else which could be causing this?...or are they acting normal anyway? :p

Here is some of my specs:
E6600 @ 3.15Ghz
2GB GeIL low latency memory
Gigabyte DS3 revision 1 motherboard

Here are the benchmarks I ran:

raid-02.jpg


raid-01.jpg
 
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The HDTach trace is not dissimilar to mine. I spent a fair bit of time trying to get a less flattened curve and didn't manage any improvements.

To be honest it's a pretty good transfer rate you're seeing, in an ideal world you might see the average increase another 10-15Mb/s but not much more.
 
I have the same thing on my rev. 1 DS3 - I think it is the jMicron RAID controller. Other people using different controllers report burst speeds way higher than mine using the same drives.

I am thinking of getting a DS4 for the Intel RAID controller to see if that is any different - just out of curiosity.
 
The JMicron is connected via the PCI bus so the maximum burst/speed you will get is ~140MB/sec and that's assuming a completely clear PCI bus.

The DS4 uses the RAID controller built into the Intel south bridge so it has a stupidly high maximum burst :)
 
I thought the jmicron was connected to the PCI -E bus, I get burst rates of around 200 with my 7200.10 drives connected to the jmicron and around 240 when connected to the ICH8R but I do have a DS3P.
 
IAmATeaf said:
I thought the jmicron was connected to the PCI -E bus, I get burst rates of around 200 with my 7200.10 drives connected to the jmicron and around 240 when connected to the ICH8R but I do have a DS3P.
Click to expand...
That's correct, it uses 1 lane of the PCIe bus so tops out at 250Mb/s
 
I've just finished building a system with a DS3 board, missed out on the ds3p when ordering. Just wondering if it's worth the hassle of ordering up the DS3p for the intel raid controller?

it the real world do the burst speeds matter?
 
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