HP SmartArray P400 has slow read and write speed

Posted by Tadas D. on Server Fault See other posts from Server Fault or by Tadas D.
Published on 2011-03-13T21:34:24Z Indexed on 2011/03/14 0:12 UTC
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Windows

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raid

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hp

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speed

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smartarray

I have desktop in which I installed HP SmartArray P400 controller with two HP DF0146B8052 hard drives. I made RAID0 logical volume from them, but I am getting 20MB/s write speed and ~140-120MB/s read speed. Also there is quite low scatter for benchmark results (I am getting quite nice line) and it looks like controller is "capping" my speeds. I tried reseting controllers configuration and I haven't found any settings in HP ACU (Array Configuration Utility) to help me.

I am using Windows 7 Ultimate and M4A78 board

Does anyone have ideas what could be wrong? Also I am attaching diagnostic results.

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