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Poor Software Raid1 speeds

post #1 of 5
Thread Starter 
A coworker and I recently got the exact same bundles from newegg as office desktop replacements.

Mobo= GIGABYTE GA-Z68A-D3H-B3
cpu = 2500k
rest doesnt matter really other than we are doing software raid on the 2 6gbps ports.

Now, here's the weirdness. We both grabbed CrystalDiskMark and did benchmarks on raid1 of 2 seagate 6gbps 1tb drives. He is getting ~140MB/s (Seq Read)

My system, identical setup. ~40MB/s (Seq Read)

Both running the default windows drivers, same bios settings etc.

So I figured, ok maybe go for the Intel Drivers for the controller. Install, verified via Device Manager, rebooted, tested again. Same crap speeds, while he consistently still is getting mid-100MB/s

Anyone have any ideas? I am usually building servers and dealing w/ raid cards, so software raid and Windows are not my expertise. When the intel driver is installed, I can check via the utlity that the raid is in a 100% normal state and caching is enabled.

Thanks in advance for any help.
Edited by aktivate - 6/8/11 at 3:38pm
Aurora
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Aurora
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post #2 of 5
Are you using windows to setup and manage the raid or the onboard raid with the motherboard?
RED912
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RED912
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post #3 of 5
Thread Starter 
Onboard raid w/ the motherboard.
Aurora
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Aurora
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CPUMotherboardGraphicsRAM
Core 2 Quad Q9550 Asus P5E3-WS Pro Radeon HD 5850 8gb DDR3 1600 OCZ 
Hard DriveOSMonitorKeyboard
2x300gb Velociraptor on Adaptec 2405 RAID1 Windows 7 2xDell 22in LCD Kensington Keyboard For Life 
CaseMouseMouse Pad
CoolerMaster 690 Logitech G5 SteelSeries 
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post #4 of 5
Software raid is dynamic disks where the raid controllers ain't used. Its all windows
post #5 of 5
That is weird. Is all power saving turned off (high performance mode)? Do you have the latest bios for ICH10 (included in F6)? Is there any sign of high system latency? Does each disk perform normally when not in raid 1?
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