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Raid0 performance question.

post #1 of 14
Thread Starter 
I have 2 spinpoint f3 1tb hdds in raid0 and here is what I get in hdtune.


Shouldn't it be faster than that well atleast not dip down that low?
post #2 of 14
The first half looks about right I'm not sure about the dip.
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post #3 of 14
Thread Starter 
Quote:
Originally Posted by Scrappy View Post
The first half looks about right I'm not sure about the dip.
Yeah I thought the first half looked right but then the second half is pretty low.
post #4 of 14
This is what mine looks like
3 250gb. Wd cav. II RAID 0 set to 250gb. in RAID BIOS (short stroked) 64kb. stripe size



What you are seeing is the drive reading from the inner edge which is turning slower

You can test this out by selecting short stroke and setting your test size to about 300 gb
this will keep the test on the outer edge
Edited by slickwilly - 7/27/11 at 8:55pm
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post #5 of 14
looks fine to me

Remember, as the line dips, that means that the data is getting closer to the spindle. As this happens the speed of the platters gets slower and the head can't read as much data. Thats why many people (including myself) take the first 20% of a drive and partition it for a fast drive, leaving the rest for storage.
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post #6 of 14
Thread Starter 
Quote:
Originally Posted by Finny View Post
looks fine to me

Remember, as the line dips, that means that the data is getting closer to the spindle. As this happens the speed of the platters gets slower and the head can't read as much data. Thats why many people (including myself) take the first 20% of a drive and partition it for a fast drive, leaving the rest for storage.
Yeah I know it should dip down but from what benchmarks I seen from other people it shouldn't get that low.
post #7 of 14
Did you do a defrag before the benchmark?
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post #8 of 14
Thread Starter 
Quote:
Originally Posted by slickwilly View Post
Did you do a defrag before the benchmark?
No I just got the drives today and just installed windows on them.
post #9 of 14
I just did a defrag with Defragler and it did not improve my speeds or remove those dips you see in the bench mark
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post #10 of 14
The big dip at the end is probably just other software accessing the drives.
     
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Hitachi 2TB - HDS723020BLA64 Crucial M500 960GB - CT960M500SSD1 WD 4TB Black - WD4001FAEX WD 4TB Black - WD4001FAEX 
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Seagate 2TB - ST2000DM001 WD 640GB Black - WD6401AALS Seagate 6TB - ST6000DM001 Micron M500 - MTFDDAK480MAV 
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