White Papers

Analytics and SVF Pro – A Winning Combination

Analytics and SVF Pro – A Winning Combination

September 2020

Customers have long been familiar with OakGate SVF Pro and LeCroy Analyzer tools. Our new WorkloadIntelligence™ Analytics tool allows customers to derive even more benefit from their existing tools.

Because most tools report data as averages and histograms, some problems can be hard to identify and correlate. In addition, problems that span multiple layers can also be hard to identify and correlate. Analytics provides a means to deal with both of these issues. Teledyne LeCroy has developed a suite of advanced software tools called WorkloadIntelligence that delivers on the promise of providing analytics and replay capabilities for testing SSDs with real-world workloads

Real-World Workload Comparisons on Industry SSDs

Real-World Workload Comparisons on Industry SSDs

June 2020

This white paper shows a comparative analysis of storage industry SSDs using Teledyne LeCroy WorkloadIntelligence™ Analytics application.

A datacenter workload, a Linux block trace provided by one of our Teledyne LeCroy hyperscale data center customers, was used for the comparative analysis. The goal for the comparative analysis was to see how other industry SSDs handle the same burst of latency I/Os highlighted in the trace.

The trace was captured using a customer’s production system and replayed on an OakGate appliance. Because Teledyne LeCroy uses a proprietary driver, which sits in user space and tunnels through directly to the hardware, we are able to faithfully reproduce the workload to the drive without operation system induced variation in the workflow.

Analyzing Real-World Data Center Production Workloads

Analyzing Real-World Data Center Production Workloads

February 2020

This white paper describes the benefits of using real-world workloads and how real-world workloads can be analyzed for data center improvements.

  • Challenges in the Data Center
  • Real-World Workload Characteristics
  • Benefits of Utilizing Real-World Workloads
  • Use Case: High-Latency Bursts within a Hyperscale Data Center Workload

Qualifying SSDs for the Data Center White Paper

Qualifying SSDs for the Data Center: Current and Future Trends

February 2019

This white paper addresses the need and issues of transitioning to SSDs in the data center, as well as the current and future trends of qualifying SSDs in the data center.

  • Benefits of Using SSDs for the Data Center
  • Issues when Transitioning to SSDs in the Data Center
  • Questions to Address when Qualifying SSDs
  • Current Trends:
    • Choosing the Right Test and Validation Tools
    • Testing and Validating Various SSDs Before They Are Purchased
    • Testing and Validating SSDs Before They Are Deployed to Production
  • Future Trends:
    • Workload Replay
    • Workload Analytics

File System / Block Exerciser

File System / Block Exerciser

A scalable and easy-to-deploy storage performance, validation, analysis, and workload-modeling environment

July 26, 2017

This white paper describes the features of OakGate’s file system / block exerciser and how customers can quickly and easily run pre-packaged storage workloads and view immediate results. Our exerciser helps customers avoid:

  • Being burdened with developing complex scripts or analyzing megabytes of cryptic results generated by free data validation tools.
  • Needing to create and maintain their own in-house validation tool, using valuable time, money, and engineering resources that could be more effectively applied for their company’s core product development.

Atomicity

Atomicity Definition and OakGate Implementation (as applied to testing of SSDs)

July 8, 2013

This white paper defines atomicity as it pertains to testing of flash based storage devices, such as SSDs, and examines various scenarios and expected device behaviour under each scenario.