The who, what, why, when & how of cloud computing

7/3/2012
The Who, What, Why, When &

How of Cloud Computing
Nari Kannan

1

Nari Kannan

Agenda
• Definition of Cloud Computing
• The Who?
• Evolution of Cloud Computing
• Who’s Using Cloud Computing and For What?

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• The What?
• Cloud Computing Models and Tools Available

• Enterprise to Cloud Architecture
• The Why?
• Cloud Computing Drivers
• Objections and Concerns
• The When? – Some Cloud Adoption Use Cases
• The How?
• Simplified Cloud Migration Flowchart 2

• Conclusions
Nari Kannan

Nari Kannan
Definition of Cloud Computing

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• Best Definition I have seen so far: Cloud Computing is a style
of computing where computing resources (Computes,
Storage, Network, Computing Platforms , Applications) are

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easy to obtain, cheap and just work!
• Characteristics:

• Scalable & Reliable Software As A Service
• Elastic (SaaS)

• Ubiquitous Access Platform As A Service
(PaaS)
• Complete Virtualization
• Relative Consistency Infrastructure As A Service
(IaaS)
• Commodity Hardware & Software
• Measured Service
• Multi-Tenant 4

• Multiple Applications
Nari Kannan

Private Cloud

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Public Cloud

Hybrid Cloud
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Nari Kannan Vertical or Community Cloud

The Who? – Evolution of Cloud
Computing
Earliest Known Hypervisor – 1965 – IBM 360/85 – One Half acted as IBM
360/85, Other Half - IBM 7085 (Wikipedia)

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Estimates of Google 6
Servers – 1.7 M+ in 12
Data Centers – Jan 2012
Nari Kannan

The Who?
• Perfect Storm of Many Developments over a Decade!
• Drive for Scale – Web and Social Media Growing Faster than

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Processing Capabilities!
• Drive for Simplicity – Large Batch Jobs and Simplified Querying! –
No need for extra baggage in OS, Storage – Stripped Down

Technology! – Hadoop/MapReduce, Google File System,
MongoDB, CouchDB, Cassandra and Riak Distributed Databases
• Drive for Commodity, Cheap Hardware – Tens of Thousands of
Inexpensive Servers Needed!
• Inexpensive Multi-Core Processors – Good for Distributed
Parallel Processing
• Dropping prices and Increasing Storage Capacities
• Faster Networks 7

Nari Kannan

Nari Kannan
The Who?

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The Who? – Who’s Using Cloud
Computing and for what?
IBM Survey of 110

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Companies using Cloud
Computing – October 2010

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Nari Kannan

The Who? – Who’s Using Cloud
Computing and for what?

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Source:
Ahead in The
Cloud – CSC
Cloud Index 10
Dec 2011

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The What? – Cloud Computing
Models & Tools Available

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Nari Kannan

The What? – Cloud Computing
Models & Tools Available
Cloud Services Cloud Provisioning & Orchestration
• Amazon Web Services • EnStratus
• Rackspace • OpsCode

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• Joyent • RightScale
• OpsSource • HP Hybrid Delivery
• GoGrid • CA Automation Suite for Clouds

• Microsoft Azure Web Services • EMC Iconix
• Terremark • BMC Cloud LifeCycle Management
• Savvis • Eucalyptus (Open Source)
• Fujitsu Cloud Services
Cloud PaaS
• VCE – VMWare, Cisco, EMC
Virtualization Software • Kinvey
• VMWare
• Microsoft Hyper-V Cloud Monitoring
• Citrix XEN Server • Hyperic 12
• XEN Server (Open Source) • CloudKick
•OpNet
Nari Kannan •Heroix

The What? – Enterprise to
Cloud Architecture
Business Process Management Layer

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Integration Layer – Service Oriented Architecture –
External Enterprise Services

Enterprise Applications Layer – In-House Applications,
SaaS Applications, Social Media
Cloud Layer – Orchestration, Provisioning, Auto-Scaling,
New! Monitoring, Performance
Hardware Layer – Computes, Storage, Network – Private,
Public, Hybrid

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Nari Kannan

The What? – Enterprise to
Cloud Architecture
• Application Cloud Vs Infrastructure
Cloud

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• Separate Applications from Infrastructure

• Consider Move to Application Cloud Separately
from Infrastructure Cloud
• An In-House Application could be moved to a SaaS
Model
• Infrastructure could be moved to Private, Public or
Hybrid
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Nari Kannan

The Why? - Cloud Computing
Drivers
• Better Asset Utilization (Infrastructure)
• Better Asset Utilization (People and Skills)

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• Projects that Require Massive Scaling or Distributed Storage
and Processing - Hadoop/MapReduce/Cassandra/Riak

• Reduced /Optimized IT Cost – No need to buy additional
hardware/software for one-time large scale projects
• Conversion of Fixed Costs to Incremental Costs – Step-wise
Fixed Costs to Smooth Variable Costs
• IT Scaling Backlog Reduction (VMs on Hybrid Clouds – Even
Business Groups Self-Service Possible)
• Ideal model for New Startups or Intrapraneurial Ventures –
Failure does not leave you with unused hardware and 15
software
Nari Kannan

The Why? – Objections &
Concerns
• Security
• Private Clouds – Can be as secure as before private clouds

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• Public Clouds – Providers have higher level of expertise and
protection but need evaluation
• Full Segregation on Public Clouds using Virtual Private Clouds

• Vendor Lockin
• Losing Control
• Valid concern considering loss of visibility of where computes and
storage are on public clouds at any time
• Concerns about Data Leakage on Public Clouds also valid concern
• Cost – Holistic calculations needed taking into effort people,
hardware, software, time , effort 16
• Change and Disruption
Nari Kannan

The When? – Some Cloud
Adoption Use Cases
• Need a Hosted CRM Capability To Support our Expanded
Sales and Marketing Efforts

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• Solution - Application Cloud – SalesForce.com
• Need a Hosted Application Platform to Build New Custom
Business Application

• Solution – Application Cloud – Custom App, Infrastructure –
Public or Hybrid Cloud
• Problems Scaling a Custom-Built Application for Global Use
by the Business
• Solution – Virtualization at the hardware layer, possibly scaling to
Hybrid Cloud
• Need Better Utilization of Data Center Resources 17
• Solution – Server Virtualization and Consolidation
Nari Kannan

Nari Kannan
The How? – Cloud Migration

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The How? – Simplified Cloud
Migration Flowchart
Understand the Business Cloud Strategy and
Roadmap

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Understand Cloud Drivers
Cloud Modeling and
Architecture

Perform BPM, SOA,
Enterprise Applications Cloud Implementation
Inventory Planning

Perform Infrastructure Cloud Implementation
Inventory Mapped to the
previous step – Computes,
Storage, Network Cloud and Application
Performance Monitoring
Cloud POC/Pilot Project – and Fine-Tuning
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Go/No Go Decision

Nari Kannan

The How? – Best Pilot
Candidates for Cloud Migration
• Application Development and Test Virtual Machines
• Training Applications

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• Mission Support Applications
• Email, Collaboration Tools like Intranets

• New Mobile applications that require rapid scaling, especially
Consumer-facing
• Phased Migration Strategy
• Show ROI and Improved Server Utilization with Virtualization,
Create and Prove a Private Cloud
• Migrate to Hybrid Cloud for new projects and applications such as
above
• Plan for public cloud implementations for the 20
longer term
Nari Kannan

Conclusions
• Commodity hardware enables virtualization and scaling up or
down internally or in the public cloud- adjust resources
available dynamically to demand

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• Cloud computing ideal for projects requiring massive

distributing computing, storage and network resources,
especially for unstructured data

• Drivers for cloud adoption may vary from one organization to
the next but multiple options available in SaaS, PaaS or IaaS
for addressing them

• Cloud migration will be successful with diligent matching of 21
drivers to solutions
Nari Kannan

Nari Kannan
Conclusions

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The who, what, why, when & how of cloud computing

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The who, what, why, when & how of cloud computing