|SandForce SF1200 RAID-0 SSD Performance|
|Reviews - Featured Reviews: Storage|
|Written by Olin Coles|
|Monday, 03 May 2010|
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ATTO Disk Benchmark
The ATTO Disk Benchmark program is free, and offers a comprehensive set of test variables to work with. In terms of disk performance, it measures interface transfer rates at various intervals for a user-specified length and then reports read and write speeds for these spot-tests. There are some minor improvements made to the 2.34 version of the program, but the benchmark is still limited to non-linear samples up to 256MB. ATTO Disk Benchmark requires that an active partition be set on the drive being tested. Please consider the results displayed by this benchmark to be basic bandwidth speed performance indicators.
Our basic bandwidth speed tests begin with both SandForce SSDs connected to the Intel ICH10 controller in RAID-0 4K-stripe mode, as the ATTO Disk Benchmark tools performs file transfers ranging from 0.5 KB to 8192 KB. The 4KB striped set of SF-1200 SSDs reveals a 471 MB/s maximum read speed that plateaus from about 4-8192 KB file chunks, and 448 MB/s peak write bandwidth plateaus from 64-8192 KB.
SandForce SF-1200 SSDs in RAID-0 using 4KB Stripes
With the RAID-0 SandForce SSDs configured with 128K-stripes, ATTO Disk Benchmark reports dramatically different results. The 128KB striped set of SF-1200 SSDs reveals a 579 MB/s peak read speed that plateaus from about 8-8192 KB file chunks, and 545 MB/s peak write bandwidth plateaus from 128-8192 KB.
SandForce SF-1200 SSDs in RAID-0 using 128KB Stripes
Our results for ATTO Disk Benchmark are illustrated in the chart below, with positions determined by total combined bandwidth:
In the next section, Benchmark Reviews tests sequential performance using the CrystalDiskMark 3.0 software tool...