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End to End Implications of a Cloud Computing
Environment
Frank J. De Gilio [email protected]
IBM Internal Use Only Copyright IBM Corporation 2010
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What is Cloud Computing?
It is a user experience
Cloud computing is an emerging style of computing in which
applications, data, and IT resources are provided as services to users
over the web.
Cloud principles will bring a level of standardization to
infrastructure management methodology
Cloud computing drives cost reduction and simplification, by
consolidation and more efficient utilization of existing resources
It is a business model
How often can you say no?
How effectively do you charge the lines of business you support?
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What is Cloud Computing?
U.S. National Institute of Standards and Technology:
Cloud computing is a model for enabling convenient, on-demand
network access to a shared pool of configurable computing resources
that can be rapidly provisioned and released with minimal management
effort or service provider interaction.
Resource pooling Broad network access Rapid elasticity
Measured service On-demand self service
Characteristics
Software as a Service Platform as a Service Infrastructure as a Service
Service Models
Private cloud Public cloud Hybrid cloud
Community cloud
Deployment Models
Read more at: http://csrc.nist.gov/groups/SNS/cloud-computing/index.html
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Common Attribute Details
Flexible pricing Utility pricing, variable payments, pay-by-consumption and
subscription models make pricing of IT services more flexible
Elastic scaling Resources scale up and down by large factors as the demand
changes
Rapid provisioning IT and network capacity and capabilities are ideally automatically rapidly provisioned using Internet standards without transferring
ownership of resources
Advanced virtualization IT resources from servers to storage, network and applications are
pooled and virtualized to provide an implementation independent,efficient infrastructure
Standardized offerings Uniform offerings readily available from a services catalog on a
metered basis
IBM Premise: Cloud Computing Must Have
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Why is Cloud Computing Important?
Your User Community is doing it
Submarine Projects are currently underway in your business
Youve Been here before
Remember when those pesky Windows based Web Servers did this?
Your User Community views you a a commodity.
The CSI effect.
Your User Community thinks Cloud can do Everything.
Who needs traditional IT?
Your User Community may be nave.
Eroding good name of the company.
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Lets Look At Cloud Computing!
Client says, Cloud will solve my IT problems!
What are the pros and cons of cloud?
What are the things we need to keep in mind?
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The Cloud Important Questions / Points
What do you mean by Cloud?
What problems are you having?
An elastic expense:
Lower cost up front; more expensive in the long run
Clients think, If I go Cloud, then I dont need processors.
Cloud will solve infrastructure problems.
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Public Cloud Positives
Easy to Access
Easy to use there is Internet everywhere
Can be accessed from almost any platform
Any Device
Dynamic Projects short term use
Low Cost
Opex verses Capex
Resources are always available
More complete use of the resources
Follow on products
Ability to track trends and pattern usage
Quick startup
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Public Cloud Negatives
Security
End user can bypass IT governance
No guarantee of performance
Need to trust provider
Lack integration with existing system
No guaranteed backup
Dependency on this party
Vendor lock in
Compliance local regional national laws
Lack of customization
Data source integration
Multiple providing the same or similar services
Too many cloud providers cause integration issues
Hacking and Cracking
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Private Cloud Positives
Dynamic peak loading support for applications Provisioning and de provisioning
Time to value
Flexibility
Better resource allocation
Remove server huggers
Easy growth
Have new programming paradigms
Check pointing
Remove single instance team management
Cost is shared
Security is easier public
Improved CapEx and Opex bottom line
Quicker response to respond quicker to market changes
More and easy tests available
Easier platform support
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Private Cloud Negatives
GETTING PEOPLE TO SHARE
Cost money to start
Quarterly/ yearly cost cuts affect deployment
Organization design
Who is responsible for configurations in fuzzy spaces Standardize
System management model
Disparate infrastructure supporting different lines of business
Capacity planning
Stuck with vendor API
Enterprise Architecture is a real need
Governance is key
Problem determination
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End to End Cloud Computing IssuesConsider Disaster Recovery
Replication between machines in a room is not DR
Compliance
How will Cloud providers put you at risk
Security
Secure the data.
Multi Tenancy issues
Selecting appropriate workloadsCloud technical models do not solve all problems.
Translating what you know into corporate value
Legal definitions of technical issues