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RAID Report: Native mSATA RAID 0 w/ Samsung 840 EVO 250GB SSD's (TweakTown Exclusive)

By: Jon Coulter | RAID in Storage | Posted: Feb 11, 2014 7:00 pm

DiskBench - Directory Copy

 

Version and / or Patch Used: 2.6.2.0

Developer Homepage: Nodesoft

Product Homepage: DiskBench

Download here: http://www.nodesoft.com/diskbench/download

 

We use DiskBench to time a 28.6GB block (9,882 files in 1,247 folders) of mostly incompressible random data as it's transferred from our OS array to our test drive/array. We then read from a 6GB zip file that's part of our 28.6GB data block to determine the test drive/array's read transfer rate. The system is restarted prior to the read test to clear any cached data, insuring an accurate test result.

 

Write Transfer Rate

 

raid_report_native_msata_raid_0_w_samsung_840_evo_250gb_ssd_s_tweaktown_exclusive_37

 

Our data block is larger than our array's Turbo Write layer, and we can see that transfer rates are down somewhat due to the drive/array's write speed to capacity limitations.

 

Read Transfer Rate

 

raid_report_native_msata_raid_0_w_samsung_840_evo_250gb_ssd_s_tweaktown_exclusive_38

 

Read Speed isn't reliant on acceleration, and our mSATA EVO array is able to deliver stunning performance, even slightly outperforming our larger capacity EVO array.

 

raid_report_native_msata_raid_0_w_samsung_840_evo_250gb_ssd_s_tweaktown_exclusive_39

 

Our data transfer test is definitely where the rubber meets the road. We're transferring a huge chunk of random incompressible data. This is where everything we've seen so far comes together with actual data. It's easy to see the performance increase an array can deliver over a single drive.

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