DEFINE CLOUD COMPUTING
Oleksii TregubovCloud Computing Consultant
2
WHAT IS CLOUD?
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STANDARD DEFINITION
The National Institute of Standards and Technology
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ESSENTIAL CHARACTERISTICS
On-demand self-service Broad network access Resource pooling
Rapid elasticity Measured service
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SaaS
PaaS
IaaS
SERVICE MODELS
End users
Developers
System architects
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Hybrid cloud
DEPLOYMENT MODELS
Public CloudPrivate Cloud
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ON-DEMAND SELF-SERVICE
Engineer
Cloud
Give me VM now
[ API request ]
[ result ]
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ON-DEMAND: AWS EC2
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ON-DEMAND: AWS EC2
$ ec2-start-instances i-b3a850c8INSTANCE i-b3a850c8 stopped pending
$ ec2-describe-instances i-b3a850c8RESERVATION r-0a7cf16e 852587906425 defaultINSTANCE
i-b3a850c8 ami-82fa58eb ec2-107-22-37-50.compute-1.amazonaws.com ip-10-122-235-23.ec2.internal
running amkeys 0 t1.micro 2012-09-03T14:13:56+0000 us-east-1a aki-825ea7eb
monitoring-disabled 107.22.37.50 10.122.235.23ebs paravirtual xenXNsFe1343912068109 sg-da0169b3 default
false BLOCKDEVICE /dev/sda1 vol-f8d0c899 2012-09-03T14:14:21.000Z true TAG instance i-b3a850c8 Name ubuntu-test-1TAG instance i-b3a850c8 Role webserver
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BROAD NETWORK ACCESS
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RESOURCE POOLING
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RAPID ELASTICITY
Time
Vis
itors
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MEASURED SERVICE
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Software as a Service (SaaS)
Platform as a Service (PaaS)
Infrastructure as a Service (IaaS)
SERVICE MODELS
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SaaS
PaaS
IaaS
SERVICE MODELS
System Architecture
Software Development
End-user Utilization
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EXAMPLE VENDORS
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IAAS
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PAAS
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SAAS
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BENEFITS
Global Infrastructure Savings Smart Resource Provisioning
Better Delivery Time Transparent Workflow
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REASONS FOR CLOUD PLATFORM POPULARITY
Cost reduction
Scalability and elasticity
Ready for automation
Device and locationindependent
Buzzword
Pay as you go
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