Low speeds RAID10

sime_wich · 06-27-11, 11:10 PM

Hello, I've lurking this forum for years but just decided to creat an acount now.

I'm getting low speeds with my raid 10 array. Using the onboard controller, I use to have a raid 0 with 2 drives and I was getting 160+mb/s read with hdtune. Since then, I made a system image, added 2 more identical harddrives, formatted for raid 10, and finally restored the system image.

I have:
Asus P5Q PRO (mobo)
4 - ST3500320AS Barracuda 7200.11 SATA 3Gb/s 500-GB Hard Drives

I've been getting crappy speeds though. Hdtune shows around 100mb/s read with lots of spikes and falls (I've tested this multiple times and it seems to always come out the same). I also noticed that Hdtune thinks it's raid 1 (see screenshot).

I've tried installing the latest drivers and that did not help. I went to see if there was new firmware available for the hard drives and Seagates site said they were all fine.

Any help would be appreciated.

bing · 06-28-11, 01:40 AM

Right click the "Volume0" and enable the WriteBack Cache and test again, hopefully this time will score better.

sime_wich · 06-28-11, 08:16 PM

I did that and the results changed quite a bit.

06-27-11, 11:10 PM	Thread Starter #1
sime_wich New Member Join Date: Jun 2011	Low speeds RAID10 Hello, I've lurking this forum for years but just decided to creat an acount now. I'm getting low speeds with my raid 10 array. Using the onboard controller, I use to have a raid 0 with 2 drives and I was getting 160+mb/s read with hdtune. Since then, I made a system image, added 2 more identical harddrives, formatted for raid 10, and finally restored the system image. I have: Asus P5Q PRO (mobo) 4 - ST3500320AS Barracuda 7200.11 SATA 3Gb/s 500-GB Hard Drives I've been getting crappy speeds though. Hdtune shows around 100mb/s read with lots of spikes and falls (I've tested this multiple times and it seems to always come out the same). I also noticed that Hdtune thinks it's raid 1 (see screenshot). I've tried installing the latest drivers and that did not help. I went to see if there was new firmware available for the hard drives and Seagates site said they were all fine. Any help would be appreciated.
	QUOTE Thanks

06-28-11, 01:40 AM	#2
bing Low Profile Senior Join Date: Jul 2006 Location: Indonesia	Right click the "Volume0" and enable the WriteBack Cache and test again, hopefully this time will score better. __________________ █ DIY Fan Controller for 4 Wires PWM Fan \| █ Inductors are hotter than mosfets \| █ Are you HHH ? █ DIY 90 Watt Fan Controller \| █ Vintage OC-ing Gears Anyone ?
	QUOTE Thanks

06-28-11, 08:16 PM	Thread Starter #3
sime_wich New Member Join Date: Jun 2011	I did that and the results changed quite a bit.
	QUOTE Thanks

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