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2 C300 -vs- 4 Vertex II : Fight!

post #1 of 26
Thread Starter 



So here's the deal.

Drive C = C300 128GB x 2 in Raid 0 on RocketRaid 640
Drive D = Vertex II 128GB x 4 in Raid 0 on 3Ware 9750-8i

The top CDM64 is 2000MB/s score is using a dataset that is smaller then the 3Ware 9750 onboard 512MB cache... results are not quite real.

The lower CDM64 is using a 1000MB test file is larger then the cache on the 9750 and closer to reality.

BUT the 4K writes especially in AS SSD are pretty darn poor ........

Using a 64K block size on the 3ware (also tried 128K) and getting similar #'s across the board...
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post #2 of 26
Thread Starter 
Here it is again , but this time disabling all the caching/performance settings on the 3ware.


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post #3 of 26
Thread Starter 
And iops in as ssd

#1 3Ware caching/performance disabled & RocketRaid 640 defaults (nothing to set there lol )


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post #4 of 26
Those C300s have pretty fast reading, comparatively, but are the C300s running on 3Gbps or 6Gbps?

The C300s have much faster 4K writes, too.
 
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post #5 of 26
Thread Starter 
Quote:
Originally Posted by Nick0matic View Post
Those C300s have pretty fast reading, comparatively, but are the C300s running on 3Gbps or 6Gbps?

The C300s have much faster 4K writes, too.

C300's are running at 6Gbps off the RocketRaid 640
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post #6 of 26
Quote:
Originally Posted by ShtSh00ttr View Post
C300's are running at 6Gbps off the RocketRaid 640
That definitely explains the faster relative speeds on the C300s. Could you try running them SATA 2 and comparing to 2 Vertexes?
 
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post #7 of 26
Thread Starter 
Quote:
Originally Posted by Nick0matic View Post
That definitely explains the faster relative speeds on the C300s. Could you try running them SATA 2 and comparing to 2 Vertexes?
Not soon as they are the boot drives LOL
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post #8 of 26
Thread Starter 
Using ICH10R in AHCI mode with Windows 7 Dynamic Stripe : Note The change in WRITE SPEED


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post #9 of 26
Thread Starter 
And FINALLY true ICH10R Raid 0 :




Results seems to indicate that even a dual Xeon with 12 cores / 24 threads and boatloads of memory.....

ICH10R wins at least up to 4 x 285/275MB Sandforce Drives.

My 3ware 9750-i with 512MB cache does a great job for burst read ... but overall *especially* 4K tests ICH10R still can not be beat.

I may return the 3Ware card and use the credit for Vertex III lol

Edited by ShtSh00ttr - 2/24/11 at 7:24pm
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post #10 of 26
Thread Starter 
BTW: Using the latest Intel RST Drivers I also get the added Bonus of trim... Cant be mad at that!
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