PRESENTED TO THE SUSSEX BRANCH OF THE BRITISH COMPUTER SOCIETY

16TH. APRIL 2008

Wide Area Data ServicesWDS

Shaun Elliott – kisdata limited

Agenda

Overview of Kisdata LtdWide Area Data Services – what it consists of

and why it is important to youQuestions (and hopefully answers!)

Kisdata brings together technology and business consulting skills to design and deliver solutions which work in the real world to bring competitive advantage.

World class standard accreditations with the world’s major vendors & fully

accredited staff, ensure the consistency & quality of our services.

We have been awarded ISO 9001/9002 and are committed to delivering a

high quality service with integrity.

About Kisdata

Wide Area Data Services

What it is and why it is important to you

5

The challenges that distributed enterprises face today

PRODUCTIVITYCOST SAVINGSDATA SECURITY

The CIO’s dilemma: Business performance or more control?

6

Increasing control of data Data Protection – WAN backup and DR Security – SSL encryption Consolidation – eases cost and

management

Increasing distribution of organizations 88% of employees work outside of

headquarters IT must deliver to users guaranteed

performance Branches are expensive and difficult to

manage

WDS Optimisation Trends

WDS Optimisation

Distributed computing problems are converging

11

File Servers

Mail ServersWeb

Servers

FilersTapeBackup

Storage

WAN

File Servers Mail

Servers Filers

TapeBackup

DATA CENTERBRANCH OFFICE

• Application problems Web, e-mail, FTP, Notes, ERP,

database, etc… Slow response times Apps often not used…too slow

• Storage problems Data sprawl Islands of storage Backup & replication Compliance worries

• Networking problems Need “more bandwidth” Latency is a secret throughput killer Important applications not prioritised

12

Application protocol inefficiencies

Transport protocol chattiness

Not enough bandwidth

If you don’t solve all three, users won’t see performance benefits.

The three root causes of poor wide-area application performance

WDS needs to address all key performance issues

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Bandwidth LimitationsBandwidth Limitations

Transport Chattiness and

Latency

Transport Chattiness and

Latency

• Enables transparent deployment and central management of WDS appliances

• Reduce bandwidth needs• Prioritises applications’ bandwidth use

• Reduce TCP chattiness and latency• Accelerates SSL encrypted traffic

• Reduce application chattiness and latencyApplication Chattiness and

Latency

Application Chattiness and

Latency

Root Cause

Management StreamliningManagement Streamlining

Data Streamlining

Data Streamlining

Transport Streamlining

Transport Streamlining

Application StreamliningApplication

Streamlining

Technology Solution

Latency and Chattiness: Root Causes of Poor Performance

More Than a Bandwidth Problem

14

WAN

DATA CENTER BRANCH OFFICE

LatencyTime required to traverse the network

ChattinessInteractions required to complete an operation or data transfer

WAN

DATA CENTER BRANCH OFFICE

Wide-area Data Services (WDS) is an integrated approach

15

Networking

Overcome bandwidth and latency constraints

Applications

LAN-like WAN performance

Storage

Consolidate and simplify

The WDS underlying framework

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Initiate new TCP sessions

1. Accelerate the applications that are most important to your business

• Accelerate all TCP-based applications• Prioritize all applications• Orders of magnitude improvements

Maintain TCP sessions

WANDATA CENTER BRANCH OFFICE

Maintain TCP sessions

2. Make it simple to deploy and manage • Transparent deployment• Auto-discovery, auto-interception• No changes to clients, servers, or applications• No tunnels• Robust central management

Data Streamlining provides multiple bandwidth optimisations

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• Eliminate redundant data on the WAN

• 60 – 95% reduction in bandwidth utilisationData Reduction

Compression

QoS

• LZ-Compression for “new” data segments

• Useful for data transferred on first pass

• (Optional) Prioritize data on bandwidth and latency

• Compatible with existing QoS implementations

Application streamlining overcomes application protocol limitations

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Typical application inefficiency

Open

FID

Read 1Read 2

WAN

DATA CENTER BRANCH OFFICE

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Request

Application streamlining overcomes application protocol limitations

WAN

DATA CENTER

BRANCH OFFICE

Optimized WAN Transfer

The net effect is 65-98% reduction in WAN round trips

Appliance completes transaction locally

Appliance completes transaction locally

Application streamlining overcomes application limitations

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• Windows File Sharing & Windows-based applications

• Microsoft Exchange

• Web-based applications

• Database driven applications

• Disconnected operations & integrated file sharing

CIFS

MAPI

HTTP

MS-SQL

BACKUP & REPLICATION

PROXY FILE SERVICE

• Simplified replication of remote servers

• Unix File Sharing & Unix-based applicationsNFS

• Secure Web applicationsHTTPS

21

WAN

Transport streamlining overcomes TCP limitations

Make TCP payload bigger

16KB to 100KB+

The net effect is a 60-98% reduction in round trips

DATA CENTER

BRANCH OFFICE

Repack payload with references

From 100KB+ to Virtual 1MB+

References

New dataData

Transport streamlining provides many more TCP optimisations

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• “Fill the pipe” for OC12 and larger connections• Works with clean or lossy links (HS-TCP and MX-TCP)

• Ensure priority handling for packet resends

Advanced TCP Acceleration

Connection pooling

Adaptive congestionwindows

Limited and fastretransmits

• Eliminate 50% of overhead for small, short-lived connections

• Adapt transfer parameters based on network characteristics

• Supports end-to-end acceleration of secure traffic• Maintains the preferred trust modelSSL Acceleration

MX-TCP: Making WAN-based backup, replication, and transfers even faster

Time

Ban

dwid

th /

Thr

ough

put

High-Speed TCP Regular TCPMX-TCP

HS-TCP

• High-Speed TCP avoids slow start, but will still back off in congestion

• Applies to all optimized traffic• HS-TCP available on some WDS

appliances

MX-TCPMX-TCP

• Uses 100% of its allocated bandwidth with no slowdown due to loss• Granular control: Enabled per QoS class• Uses QoS per class bandwidth limits to set sending rate

Works well for lossy environments and satellite WANs too

WDS approach accelerates all TCP applications – what to look for

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WDS appliances should be designed for easy network integration

• Wide range of models for data centers down to small offices• Up to 1,000,000 concurrent connections• Up to 4Gbps optimized bandwidth

• Serial clustering• Parallel clustering• Hot backups

• Fail-to-wire Ethernet cards• Multiple power supplies• RAID

Scalability

Software-based Redundancy

Hardware-basedRedundancy

• Numerous 10/100/1000 in-path interfaces• TCP connection forwarding• Diverse in-path and out-of-path deployment options

Deployment Flexibility

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Secure application acceleration that maintains the preferred trust model

WAN

DATA CENTER

BRANCH OFFICE

1. SSL Certificates and private keys copied to server-side appliance (no certificate faking in branch offices)

2. Appliances use their own identity certificates to establish a secure connection (proactive or on-demand)

3. On secure data request, client handshake with server is intercepted by server-side Appliance. Server-side Appliance SSL connection with origin server.

4. Server-side Appliance establishes SSL connection with client.

5. Temporary session key is migrated from server-side Appliance to client-side Appliance, moving client’s SSL connection to client-side Appliance.

6. Transfers are accelerated via all OS streamlining mechanisms

RequestOptimized WAN transfer over SSL

SSL session setupTemporary Session Key

Secured connection

Legend

Secured connection

TemporarySession Key

SSL Certificate

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Enhanced Auto-Discovery

Simplifies deployments for complex environments Automatically finds and optimizes between most distant

Appliance pair Eliminates the need for manual peering rules Requires no additional configuration Supports unlimited Appliances in transit between Client

Appliance and Server Appliance

Improves performance finds optimal Appliance pairing for maximum optimization

BRANCH OFFICE

DATA CENTER

WDS vs. application front end (AFE) devices

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Backup

WAN

DATA CENTERBRANCH OFFICE

Web

FilesEmail

DB

CustomAppsWDS

File, Email, Filer, Web, SMS, etc…

Accelerate all applicationsData reductionTCP optimizationApplication layer optimization

60 – 95% bandwidth savings QoS

DATA CENTER

Application Front End (AFE)

BRANCH OFFICE

Web Server

Web

Web only Single sided (no advanced data reduction) Allows internet & branch connections

WAN

INTERNET USER

HTTPS

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Infrastructure Cost Savings

Accelerated Business Processes

Bandwidth Savings

More Secure Data

“66% reduction in Exchange servers & the associated cost.”

– Greenhill Investments

“All our architects – around the world – work as if they were in the same office.”

– Gensler Architecture

“$500,000 in MONTHLY bandwidth savings. A payback period of 5 months, even before we factor in productivity gains.”

– LG Electronics

“Our WAN backup windows went from 4 hours to 5 minutes. Protecting a day’s data is worth $200,000 to us.”

– Little Diversified Consulting

Making the business case for WDS in your company

4 Months

Payback Period

1 Month

5 Months

6 Months

Niche Players Visionaries

Completeness of vision

Exinda Networks

Certeon Stampede Technologies

Intelligent Compression Technologies

Silver Peak Systems

Streamcore Systems

Ipanema Technologies

Converged AccessCitrix

Blue Coat systems

F5 Networks

Cisco Systems

Packeteer

Expand Networks

Juniper Networks

Riverbed

Challengers Leaders

Source: Gartner September 2006

Gartner Magic Quadrant – WAN Optimisation Controllers

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In summary, WDS Appliances will accelerate your business

Reduces bandwidth utilization by 60% to 95%

Accelerates all key applications by up to 100x over the WAN

WAN

Tens of thousands of appliances in production

Enables successful IT consolidation

Questions?