Flash storage is the “go to” option in the modern data center to overcome storage I/O bottlenecks. The problem has been how to get full performance for the flash investment. The zero latent nature of flash exposes bottlenecks throughout the I/O chain.
In this webinar you will learn:
• How latency is introduced by each flash interconnect
• What the performance ramifications are of this latency
• How to reach the full performance potential of flash based storage by leveraging the memory bus
• How memory bus based flash changes the game for how flash can be utilized in the data center
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Flash Roadblock: Latency! - How Storage Interconnects are Slowing Flash Storage
1. Flash Roadblock: Latency!
How Storage Interconnects are Slowing Flash Storage
and How to reach the Final Performance Frontier
Register For On-Demand
version for Audio + Q&A
3. Today’s Agenda
● Company Backgrounds
● What is Latency, Throughput and Bandwidth?
● Flash Road Blocks - What Slows Flash
Down?
● In Search of a Zero Latent Architecture
● The Final Frontier for Flash Performance
4. Background
● Analyst firm focused storage,
cloud and virtualization
● Knowledge of these market is
gained through product testing,
implementations and
interactions with users and
suppliers
● The results of this research
can be found in the articles,
videos, webinars, product
analysis and case studies on
our web site:
○ http://storageswiss.com
5. A Global Leader in Flash Storage Solutions
Rankings
Trailing 4 Qtr Financials*
$6.0B
$3.3B
$0.7B
SanDisk
Client SSD
Used by All
Leading PC
OEMs
Global Operations
Revenue
Net Cash*
R&D Investment
5,300+ Employees†
Qualified at
6 of the Top 7
Leading Retail Brand1
#1 Global
Retail
Revenue
Share
All Leading
Smartphone
& Tablet
Manufacturers
use SanDisk
Server & Storage OEMs
Enterprise SSDs and Storage Software
* Financials as of Q3 ‘13. Net Cash = [Cash + cash equivalents + short-term & long-term marketable securities] less [debt at maturity value] as of the end of Q3 ‘13. Headcount & patents as of Oct ‘13. NPD Estimate, Jan ‘13. 1Estimates of the memory card & USB markets from NPD (Aug ‘13) and GfK Retail and Technology, Jul ‘13.
5
6. What is Latency, Throughput and Bandwidth?
● Latency
● The speed at which the device can
respond to the I/O request
● Throughput
● The speed at which the device can
deliver that response per channel
● Bandwidth
● The number of channels that the
device has available to deliver that
response
7. Flash Roadblocks
● Flash Exposes Architectural
Problems that HDDs Didn’t
● Speed / Bandwidth of the
Connection
● Contention of the Connection
● Efficiency (or inefficiency) of the
Storage Protocol
8. In Search of a Zero Latent Architecture
● High Speed Networks
● 16Gbs Gen 5 Fibre, Infiniband
● Has to traverse storage protocol and
network stack, not private
● Server Side SSD
● Has to traverse storage protocol stack,
not private
● Native PCIe SSD
● No network, no storage but still has to
go through IO HUB, inconsistent latency
9. The Final Frontier in Flash Performance
● Flash on the Memory Bus
● Designed for Memory
● Dedicated to Memory
● Higher Speed than PCIe or
storage network
● Avoids traditional storage
protocol stack
● Result: No Bus Contention, very
consistent latency
10. ULLtraDIMM Solid Foundation
The World’s First Flash Storage Device On The Memory Channel
Memory Channel
Interface
Enterprise Class
Reliability, Endurance
& Support
Cost
Effective
SanDisk Confidential
11. Creating a New Storage Interface
This is DRAM with
battery backup
This is a
SATA DIMM
Flash
Flash
Flash
Flash
Flash
Controller
Controller
DRAM
Flash
Flash
Flash
DRAM
This is DDR3 directly to flash
SanDisk Confidential
12. Utilizing Existing Server Infrastructure
DDR3 Interface & Protocol
Scalable I/O & Capacity
Example: 8-socket server with 64 DIMM slots
Scalable up to 56 DIMM’s
Up to 22.4TB capacity
>8M IOPS in a single server
SanDisk Confidential
14. Benefits to Applications
Financial Services
Blockdevice
Block device
Low,predictable
Low, predictable
latency
latency
FastInteractive
Fast Interactive
Data Analysis
Data Analysis
Database/Cloud
Blockdevice/
Block device/
memory
memory
extension
extension
Increase
Increase
Transactions per
Transactions per
Second
Second
Memcached
Memcached
consolidation
consolidation
Virtualization
Blockdevice
Block device
IncreasedVMs per
Increased VMs per
Node
Node
Fasterresponse
Faster response
times per VM
times per VM
Blade Server
Blockdevice
Block device
Utilizesempty
Utilizes empty
DIMM slots
DIMM slots
Enableshigh
Enables high
density storage
density storage
blades
blades
In Memory Compute
Memory
Memory
extension
extension
Reduceresponse
Reduce response
times for analytics
times for analytics
queries
queries
SanDisk Confidential
14
16. Thank you for joining!
Click on the Questions
button on the right hand
side of your viewer
Select Attachment
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and white papers
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webinar.
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Contact And Resources:
George Crump: gcrump@storageswitzerland.com
www.storage-switzerland.com
A recording of this and our
other webinars is available
on our website (no need to reregister)