HD tach - 2 x 150gb raptors in raid0

Unfortunately the EVGA manual is pretty poor when it comes to describing this. You need to ensure that the appropriate SATA ports are set to have RAID mode enabled in the Integrated Peripherals section of the BIOS. Where you go after that to set up an array is anyone's guess I'm afraid.
 
yea seems too low, my 8mb cache 74gb raptors are quicker on the same setup, i can post a pic if needed.

When you enable RAID in the bios, restart the PC and then when the RAID screen comes up press F10, make sure its set to Striping and that both the drives are on the right hand side panel in the config section.

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Just noticed in yir HDD screenshot, your not using RAID0 you need to set it to Stripe in the RAID bios ( F10 ). You will have to reinstall windows once its done.
 
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Looks like JBOD not raid 0 :P like in the middle of the graph hdd 1 finsihes and 2nd hdd begins, should be highest on left going down to the right with no going up anymore.

Re-check if you've set raid 0 as that definatly loosk like jbod not raid0.
 
a lot better, however still a bit odd the graph.

For comparison here are 2 of my 7200.10 seagates in raid 0 on a 128 k stripe...



I think there must be some bios setting you've missed, or not i dont know but the graph just looks odd to me...
The avrage read is ok but all the spikes on the graph, just look very odd to me....
 
snowdog said:
a lot better, however still a bit odd the graph.

For comparison here are 2 of my 7200.10 seagates in raid 0 on a 128 k stripe...



I think there must be some bios setting you've missed, or not i dont know but the graph just looks odd to me...
The avrage read is ok but all the spikes on the graph, just look very odd to me....
Click to expand...


Im doing the same set-up disk and RAID wise this weekend 'snowdog' how do you find the speed of these drives in windows and gaming?
 
CarlD said:
grr :mad:
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dont worry Its a lot better now ( as now its raid 0 ), the fluctuation could just be nomall, they just look weird to me but i've never had a raptor so really cant tell if its ok...


tweakinfreak said:
Im doing the same set-up disk and RAID wise this weekend 'snowdog' how do you find the speed of these drives in windows and gaming?
Click to expand...

I cant say about windows as not using windows on it ( windows on other drives) but the games that are on the hdd load a bit faster and copying&pasting is faster...
Renember to set a good stripe size, i have 128 k because i mainly have big files on the hdd, but for windows 32k is a lot better ( 64 is very good to balance out between windows & games performance)....
 
What size of cluster did you do? I done 32k the option was in the RAID (F10) options.

Your burst speed and Av read should be a lot higher than this screenshot, yir access times look fine though. Im sure theres a pic of the 16mb cache raptor on this forum, and its damn rapid :)

anyway, these drives are around 3 years old almost, you will be faster.
tach.PNG


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To me its like something is holding your drives back maybe you have them set to sata 1? or even maybe you dont have NCQ enabled ?
Just a guess
 
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CarlD said:
This any better:
http://img293.imageshack.us/my.php?image=2kb2.jpg
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Looks very much like a PCI bus bottleneck. If you have more than one RAID controller on your motherboard, then maybe try the other one - some motherboards have even some of their onboard controllers patched into the PCI bus. That said, the results isn't bad, so you could also just leave it.
 
This is my 2x 150GB Raptors in RAID 0 using the 32Mb test on a fairly fresh install of Windows XP SP2 on the Intel controller of the Asus P5W DH deluxe :

hdtach.jpg


Looks like yours could still do with improvement but its probably not really noticeable compared to mine as its fairly close.

Should mine look a lot different though ?
 
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BeelzebubUK said:
This is my 2x 150GB Raptors in RAID 0 using the 32Mb test on a fairly fresh install of Windows XP SP2 on the Intel controller of the Asus P5W DH deluxe :

hdtach.jpg


Looks like yours could still do with improvement but its probably not really noticeable compared to mine as its fairly close.
Click to expand...

That looks quite good! ;)
 
Trox said:
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To me its like something is holding your drives back maybe you have them set to sata 1? or even maybe you dont have NCQ enabled ?
Just a guess
Click to expand...

The Raptors are only SATA 1 drives. They get close to the theoretical limit for SATA1 because they spin at 10,000 rpm.
 
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