Fusion-io vs Intel X25-M SSD RAID, Grudge Match Review

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ATTO Disk Benchmark

ATTO is a more straight-forward type of disk benchmark that measures transfers across a specific volume length.  It measures raw transfer rates for both reads and writes and graphs them out in an easily interpreted chart.  We chose .5kb through 8192kb transfer sizes over a total max volume length of 256MB.  This test was performed on blank, formatted drives with NTFS partitions.

ATTO Disk Benchmark - Read/Write Performance
Version 2.02


 
Intel X25-M x 2 RAID 0
 
Intel X25-M x 4 RAID 0


Fusion-io 160GB ioDrive

ATTO shows a very similar performance progression for the Intel RAID arrays, whether using a two or four drive installation.  Read performance is in the mid to high 500 or 600MB/sec range for the Intel RAID arrays but higher in the instance of a four-drive setup.  Write performance with the Intel-based RAID 0 arrays again pretty much doubles from going from two to four hard drives.  In addition, obviously, small block transfers from .5K to 4K are not a strong suit for the SSD.  In any case, the performance graphs for the Intel RAID arrays are impressive.

And again, the Fusion-io drive shows flat-lined read and write performance, this time within the 800MB/sec territory.  Also again, the performance bars scale so linearly, it's as if at each point on graph, the Fusion-io drive is maximizing throughput from its NAND Flash array to its fullest potential.


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