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NVRaid Random Access Time Fixed


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I previously had a problem with my raid 0 configuration where the "Random Access" time was at 21.3ms with an average read of 93.3MB/sec.

I did a bit of reading and changed a few settings and then.......BBBBAAAMMMM

My "Random Access" time is down to 10.7ms with an average read of 190.9MB/sec.

In Sandra, it was the same with previous access time at 15.6 ms and now down to 8 ms.

In the comparison at the top, it was out reading SCSI drives in raid 0 configurations................. :confused: (This I doubt....)

What are you guys getting from your drives in Raid 0 configurations?

Previous HD Tach Test:

 

Old HD Tach Test:http://img368.imageshack.us/my.php?image=h...hmarktest20.jpg

 

New HD Tach Test: http://img368.imageshack.us/my.php?image=h...hmarktest21.jpg

 

Sisoft Sandra Test: http://img368.imageshack.us/my.php?image=s...vebenchmark.jpg

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Why leave us in suspense? Which settings did you mess with to get the big performance bump? Inquiring minds want to know as I'm going to SATA RAID 0 shortly on my new rig and I want to avoid any issues like this if I can. ;)

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I knew raid 0 was suppose to give me performance, but I thought this was just ridiculous.......faster than two 15Krpm SCSI drives in Raid 0 :confused:

 

This is what I've got:

I turned off the HDD SMART setting, disabled CPU Spread spectrum and couple others in that category (not sure why these were enabled in the 1st place), bios cache

 

I am using NVraid drivers Version: 6.25 (x64) as the 6.66 didn't work when trying to install by using the F6 method and I've stuck with this older version since........

 

OS: XP64 + Service Pack 1

Stripe size: 16k

Western Digital SATA I : 160GB (8MB Cache) x 2

Memory setting: 2.5-2-2-5

 

Nothing Overclocked, this is all the setting I can think of at the moment.

Non of the settings I changed are spectacular or unheard of.

I was just surprised by the massive improvement or......I just got it in the wrong setting to start off with!

 

If wanting something in specific, please let me know.

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That is physically impossible... each 160 gig drive can push 55 MBps MAX. In theory, RAID0 would double this (100% efficiency) = 110 MBps. Something is not panning out... maybe the tests are testing burst cache alone.

That's what I'm thinking...it's testing something, but not true hard drive throughput.

 

For reference my 3x250 gig array does 155 mb/s sustained average.

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The numbers you guys gave sounds more like it and reasonable.

I was doubting the numbers I got as well.

Could it be a clitch with the software running in x64 environment??

I'll try couple other benchmarking softwares and update the results......

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