Teledyne LeCroy
 
SSD and CXL Testing Made Easy

OAKGATE: YOUR TRUSTED TEST PARTNER

REAL-WORLD USE CASES

 


USE CASE 1
Problem: Direct Memory Access (DMA) Read Address Default at Power Off

Investigation: The customer said it was impossible for their SSD to do PCIE read and write operations after power off. We used OakGate Memory Fencing feature to fence off memory addresses and determined that their SSD HW design will trigger this problem randomly Resolution: Customer was able to fix this design flaw with firmware changes

USE CASE 2
Problem: The OakGate driver fails due to a segmentation fault

Investigation: Determined the DMA buffer was not read back as expected (after reviewing the ASSERT code). We provided DMA buffer analysis to the customer firmware team outlining the PCIe incorrect read and write operation Resolution: Customer was able to fix this design flaw with firmware changes

  • Given we can talk directly to the hardware, we can inject errors at the lowest level to ensure that the product under test can withstand it
  • Additionally, we also allow users to run their own NVMe compliant block (or SG) driver. This could be useful in system test environments and to calibrate the efficiency of the customer’s driver and optimize it if necessary theoretical test cases
 
OCP Solutions
 

SSD validation isn’t just a checkbox—it’s a strategic safeguard. It protects data, ensures performance, and minimizes risk. For Hyperscaler’s, cloud providers, and enterprises, skipping this step could mean millions in lost revenue or reputational damage.

Teledyne’s OakGate SSD validation solutions are the industry’s most advanced with an unprecedented level of functionality, performance, and ease of use for testing NVMe solid-state storage devices.

Our products are trusted and deployed by every Tier1 NVMe SSD manufacturer. One big advantage of having such a breadth of customers is that we get exposed to the requirements and best practices in each of these segments. We build this knowledge into our products, and all our customers benefit from this.

Our OakGate SSD Test solutions:

  • Help accelerate time to market for our customer’s products with our new feature readiness
  • Identify complex corner case product bugs; the bugs others miss because its built from real failure patterns observed across thousands of devices
  • Allow customers to fully exercise and stress their DUTs to verify performance
The OakGate proprietary driver talks directly to the hardware. This approach provides significant benefits over our competitors, who introduce several layers of overhead when using industry standard drivers that run on top of the operating system kernel:
  • Less layers of overhead provide the highest possible performance
  • Performance measurement is not impacted by the behavior of the operating system and hence you get consistent performance measurements
I3C TESTING IS HERE!
 
OCP Solutions
The SVF/Enduro I3C Scripted Test Suite provides customers with comprehensive and premium MIPI I3C® testing for NVMe® and NVMe-MI™ devices by employing extensive and easy-to-use "push-button" tests with OakGate ULTRA PCIe® appliances. Our solution includes dedicated I3C connection for every DUT.
Advantages of using the I3C Scripted Test Suite include:
  • Validation on whether the device adheres to specific I3C protocol standards, as well as stress testing for durability.
  • Development by OakGate – a proven expert in PCIe testing innovation.
  • Scripted tests can run the robust and feature-rich Enduro Exerciser and have access to its embedded Analyzer for easy fault diagnoses.
  • Scripted tests, developed in Python™, have a flexible framework enabling the user to easily add their own custom tests and folders. I3C
Scripted Test Suite Tiers:
  • Tier 1: I3C Implementation Correctness – designed for bring-up and bus etiquette testing.
  • Tier 2: IBI Behavior (SSD-Sideband Differentiator) - tests In-Band Interrupt (IBI) notification behavior meant to notify that a Management Component Transport Protocol (MCTP) packet is ready.
  • Tier 3: MCTP over I3C (DSP0233) – covers testing for MCTP I3C Transport Binding.
  • Tier 4: NVMe-MI Over the Sideband Path – includes testing of Out-of-Band (OOB) asynchronous events and "I3C upgrade to SMBus" messaging.
  • Tier 5: Stress – causes uncommon stress on the device, such as forced aborts, consecutive resets, and hyper-varying traffic.
There are 42 test cases!

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