Go to Page # Page of 13

Power Management PCIe/NVMe Flash Cards

 Bob Weisickle
  9th-Apr-2015
Description: Performance/Validation Challenge- Requirements, Access to PCIe Registers: Queue Configuration, Hot Discovery, Error/Fault Injection, Power Loss/Recovery, PCIe Resets, NVMe Performance/Power. Challenges: Closely coupled to host, Access via host driver, Shared environment, Limited Hot Plug/Discovery, Power Measurement. Base Level PCIe Validation- Register Access- Bit Level verification, Error Injection (Bit/Register Level). Base Address Visibility- Get/Set Features, Command Analyzer,Posted commands w/ responses, Visibility to errors. Queue Configuration- Multiple Sub/Comp Queues, Definable Sub/Comp Queue Size, Sub Queue IO Loading, Multi-CPU Queue Distribution, Definable Interrupt Support: MSI-X, MSI, Line. Hot Power Loss/Recovery- Host Independent Power Control, Ability to control power to each device, Measure power of each device, Surprise Power Loss/Recovery, Detection of device being powered off, Auto re-discovery and drive state verification, No Host reboot required, Auto Queue Management, Re-instantiate all Queues, Clean up of outstanding commands, Auto Traffic Control, Continue with traffic workload, Check for data corruption. Resets/Queues/Abort- IO Aborts: PCIe Resets, Function Resets, Hot Resets, Controller, Subsystem, Auto Re-Discovery, Queue Management & Recovery. Data Retention/Corruption- Validate Pre-existing Data, Validate ‘Acknowledged’ Writes, Evaluate 'Outstanding' Writes: Verify Atomic Write Functionality, Single LBA corruption, Visibility to Partial Writes. Power Assessment- Real-time Power Measurement: Power vs Performance, Power vs Workload. Infrastructure Scale- Improved Space Utilization, Better Power/DUT, Enhanced Management. Summary- NVMe has momentum in the Market, Test/Validation Tools exist: With Power Control and Power Measurement, Detailed PCIe Register/Queue access. PCIe Ecosystem is evolving- SFF-8639, M.2 etc becoming available, Dual Port Support.
Views: 6789
Domain: Electronics
Category: Photo
Contributing Organization: Flash Memory Summit
 ‐ More of their Presentations
Space is limited, so register today!
Contents:
Power Management
PCIe/NVMe Flash Cards

Presenter: Bob Weisickle
CEO/Founder: OakGate Technololgy, Inc.

Santa Clara, CA
August 2014

1

NVMe Premise/Challenge
Host

Host

Application

Application

Operating System

Operating System

PCIe Storage
Driver

PCIe Storage
Driver
Interface (x4/x8 PCIe Gen-2/3)

HBA/RAID Card
(SAS/SATA)

Flash Memory

Interface (6G/s SATA or 12G/s SAS)
SAS/SATA Interfac ... See more

Recent Presentations

VLSIresearch 2018 All Stars and Hall of Fame

These are the executives that made the most of this year. For some, it's taken several years of methodical execution to an overarching strategy to bring this year together. For oth

Risto Puhakka
18 December, 2018
V Rajaraman
18 December, 2018
...
17 December, 2018