Tech content trusted by users in North America and around the world
7,299 Reviews & Articles | 53,289 News Posts

Toshiba PX02SS 12Gb/s SAS3 Enterprise SSD Review

By: Paul Alcorn | SSDs in IT/Datacenter | Posted: Apr 2, 2014 2:03 pm
TweakTown Rating: 92%Manufacturer: Toshiba

Test System and Methodology

 

toshiba_px02ss_12gb_s_sas3_enterprise_ssd_review_12

 

toshiba_px02ss_12gb_s_sas3_enterprise_ssd_review_13

 

We utilize a new approach to HDD and SSD storage testing for our Enterprise Test Bench that is designed specifically 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 they fall short in providing the clearest view possible of I/O Quality of Service (QoS).

 

'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 such as 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 they do not always effectively illustrate I/O distribution with enough granularity to provide a clear picture of system performance. We utilize high-granularity I/O latency charts to illuminate performance 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 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, which significantly affects the TCO of the storage solution. We also present IOPS-to-Watts measurements to highlight efficiency.

 

Our test pool features SSDs of varying capacity, and it is important to bear this in mind when viewing results. The Toshiba PX02SS and PX02SM feature static performance specifications among their different capacity points. This should provide a fair representation of performance in comparison to the HGST SSD800MM. The first page of results will provide the 'key' to understanding and interpreting our new test methodology.

    PRICING: You can find products similar to this one for sale below.


    United States: Find other tech and computer products like this over at Amazon's website.

    United Kingdom: Find other tech and computer products like this over at Amazon UK's website.

    Canada: Find other tech and computer products like this over at Amazon Canada's website.

    We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.

Related Tags

Got an opinion on this content? Post a comment below!
loading