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Strange file benchmark with Hitachi 7k1000.C

post #1 of 5
Thread Starter 
Hey all...First time poster to the forum...lurking for a while, finally signed up.

I just purchased a new Hitachi 7k1000.c drive to replace an old Caviar Blue that was having some serious problems.

First thing I did when I got it home was to fire some tests at it, and one of the results I got made me concerned. In the HDTune file benchmark (similar to ATTO), I get really low write speeds for block sizes >= 128k. The regular HDTune benchmark doesn't show up any issues, and it seems to be OK in real-world performance, as far as I can tell...I restored my system image to it, and it doesn't seem to hang up or be sluggish, but it is a concern.

Is this a problem drive / should it be returned? Or could this be caused by something else? Is it just not getting along with my system? I certainly don't see it with any other drive I've been able to test with. I've posted some screenshots.

Any help would be appreciated.

PS--the benches were run on XP, but I see the same thing in Win7.

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post #2 of 5
Try the “turn off windows write-cache buffer-flushing.... option in device manager for your disk drive.
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post #3 of 5
Thread Starter 
I don't see that option in XP...just the option to turn off write caching altogether. Is the option you describe something only in Win7? I only migrating over very slowly, so XP is still my primary OS.

Also, with a 256MB test size, why/how would write caching affect only >=128k blocks negatively? And why only this drive, and not any others that I have?
Edited by gmikol - 1/25/11 at 8:37pm
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post #4 of 5
Thread Starter 
Quote:
Originally Posted by PeterUK View Post
Try the “turn off windows write-cache buffer-flushing.... option in device manager for your disk drive.
OK...so I tried that in Win7, and it didn't make a bit of difference.

Any other ideas?
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post #5 of 5
Thread Starter 
So...not knowing what the problem was, and not wanting to take a chance, I decided to return the drive and get an F3 instead.

Still a little glitchy with large block sizes, but far better than the Hitachi I had.

Part of this might be my mobo...no way of knowing for sure until I get the $$$ to upgrade that.
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