TweakTown
Tech content trusted by users in North America and around the world
5,928 Reviews & Articles | 38,194 News Posts

IntelliProp Hydra SATA Bridge IPA-SA117A-BR Review - Tested with Four Intel DC S3700 SSDs - Test System and Methodology

IntelliProp Hydra SATA Bridge IPA-SA117A-BR Review - Tested with Four Intel DC S3700 SSDs

IntelliProp's HYDRA SATA bridge allows manufacturers to cram more density, endurance and performance into a 2.5" slot. Paul investigates it.

| Accessories in IT/Datacenter | Posted: Feb 4, 2014 2:02 am
TweakTown Rating: 94%      Manufacturer: IntelliProp

Test System and Methodology

 

TweakTown image content/6/0/6048_12_intelliprop_hydra_sata_bridge_ipa_sa117a_br_review_tested_with_four_intel_dc_s3700_ssds.jpg

 

TweakTown image content/6/0/6048_13_intelliprop_hydra_sata_bridge_ipa_sa117a_br_review.png

 

Our Enterprise Test Bench is specifically designed to target long-term performance with a high level of granularity. Many testing methods record peak and average measurements during the test period. These average values give a basic understanding of performance, but fall short in providing the clearest view possible of I/O QoS (Quality of Service).

 

Average results do little to indicate performance variability experienced during actual deployment. The degree of variability is especially pertinent, as many applications can hang or lag as they wait for I/O requests to complete. This testing methodology illustrates performance variability, and includes average measurements, during the measurement window.

 

While under load, all storage solutions deliver variable levels of performance. While this fluctuation is normal, the degree of variability is what separates enterprise storage solutions from typical client-side hardware. Providing ongoing measurements from our workloads with one-second reporting intervals illustrates product differentiation in relation to I/O QOS. Scatter charts give readers a basic understanding of I/O latency distribution, without directly observing numerous graphs.

 

Consistent latency is the goal of every storage solution, and measurements like Maximum Latency only illuminate the single longest I/O received during testing. This can be misleading, as a single 'outlying I/O' can skew the view of an otherwise superb solution. Standard Deviation measurements consider latency distribution, but do not always effectively illustrate I/O distribution with enough granularity to provide a clear picture of system performance. We use histograms to illuminate the latency of every I/O issued during our test runs.

 

Our testing regimen follows SNIA principles to ensure consistent, repeatable testing. We measure power consumption during precondition runs. This provides measurements in time-based fashion, with results for every second, to illuminate the behavior of power consumption in steady state conditions. Power consumption can cost more over the life of the device than the initial acquisition price of the hardware itself, significantly affecting the TCO of the storage solution.

 

We connected four Intel DC S3700 200GB SSDs to the HYDRA Bridge for our tests, and higher maximum speeds may be possible with other hardware. The first page of results will provide the 'key' to understanding and interpreting our test methodology.

Related Tags

Further Reading: Read and find more IT/Datacenter content at our IT/Datacenter reviews, guides and articles index page.

Do you get our RSS feed? Get It!

Post a Comment about this content

Latest Tech News Posts

View More News Posts

TweakTown Web Poll

Question: Facebook's acquisition of Oculus VR will...

Improve Oculus Rift Development

Hamper Oculus Rift Development

Completely destroy Oculus Rift Development

Let's wait and see, I'm not sure

or View the Results

View More Polls

Forum Activity

View More Forum Posts

Press Releases

View More Press Releases