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EDGE Boost Pro SandForce Solid State Drive E-mail
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Written by Olin Coles   
Thursday, 01 September 2011
Table of Contents: Page Index
EDGE Boost Pro SandForce Solid State Drive
Closer Look: EDGE Boost Pro
SandForce SF-2281 SSD Controller
Features and Specifications
SSD Testing Methodology
AS-SSD Benchmark
ATTO Disk Benchmark
CrystalDiskMark 3.0 Tests
Iometer IOPS Performance
EVEREST Disk Benchmark
PCMark Vantage HDD Tests
EDGE Boost Pro Conclusion

Iometer IOPS Performance

Iometer is an I/O subsystem measurement and characterization tool for single and clustered systems. Iometer does for a computer's I/O subsystem what a dynamometer does for an engine: it measures performance under a controlled load. Iometer was originally developed by the Intel Corporation and formerly known as "Galileo". Intel has discontinued work on Iometer, and has gifted it to the Open Source Development Lab (OSDL). There is currently a new version of Iometer in beta form, which adds several new test dimensions for SSDs.

Iometer is both a workload generator (that is, it performs I/O operations in order to stress the system) and a measurement tool (that is, it examines and records the performance of its I/O operations and their impact on the system). It can be configured to emulate the disk or network I/O load of any program or benchmark, or can be used to generate entirely synthetic I/O loads. It can generate and measure loads on single or multiple (networked) systems.

To measure random I/O response time as well as total I/O's per second, Iometer is set to use 4KB file size chunks over a 100% random sequential distribution at a queue depth of 32 outstanding I/O's per target. The tests are given a 50% read and 50% write distribution. While this pattern may not match traditional 'server' or 'workstation' profiles, it illustrates a single point of reference relative to our product field.

All of our SSD tests used Iometer 1.1.0 (build 08-Nov-2010) by Intel Corporation to measure IOPS performance, using a SandForce-created QD30 configuration: 4KB 100 Random 50-50 Read and Write.icf. The chart below illustrates combined random read and write IOPS over a 120-second Iometer test phase, where highest I/O total is preferred:

Iometer_Random_4K-IOPS_30QD_Results.png

In our Iometer tests, which use 32 outstanding I/O's per target and a random 50/50 read/write distribution, SandForce SSDs generally outperform the competition when tested which a larger queue depth. Even with clean NAND flash, the 120GB EDGE Boost Pro SSD produced 49,496 peak combined read/write IOPS; falling short of the advertised specification of 50K sustained write IOPS and also trails behind all other SandForce SF-2281 SSDs.

In our next section, we test linear read and write bandwidth performance and compare its speed against several other top storage products using EVEREST Disk Benchmark. Benchmark Reviews feels that linear tests are excellent for rating SSDs, however HDDs are put at a disadvantage with these tests whenever capacity is high.



 

Comments 

 
# TCG OPALtcgopal 2011-09-08 12:53
I suspect the review wrong about this drive supporting the TCG OPAL specification.

Sandforce webpages claim it is an option, but I am not aware of any currently available Sandforce based SSD that actually supports it.

The drive webpage (##edgetechcorp.com/) makes no mention of TCG Opal.

ATA password != TCG Opal
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# Full disclosurealfresc0 2011-09-29 00:31
Unfortunately after being burnt by a GTX460 review, a GTX460 that was supplied by the manufacturer for the review, and was a different spec to the released version I will take this one line very seriously:

Full Disclosure: The product sample used in this article has been provided by EDGE Tech.

But thanks for including it.
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# RE: Full disclosureOlin Coles 2011-09-29 07:38
That is very unfortunate, which is why we disclose the source of our samples in every article. Almost every sample we receive is identical to full retail, but occasionally there are changes made to the retail product without any notice given.
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