Cloud Computing

Running a data center is expensive.

• Costs too much to build (CapEx).

• Costs too much to run (OpEx).

Rent what you need instead of buying and running everything!

Cloud Computing advantages:

• Pay per use.

• Instant Scalability.

• Security.

• Reliability.

• APIs.

Definition (NIST)

“Cloud computing is a model for enabling convenient, on- demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. “

Advantages

Lower cost of ownership.

Reduce infrastructure management responsibility.

Allows for unexpected resource loads.

Faster application rollout.

How does the cloud economy work ?

• Multi-tenant.

• Virtualization lowers costs by increasing utilization.

• Economies of scale afforded by technology.

• Automated update policy.

Risks.

• Security.

• Downtime.

• Access.

• Dependency.

• Interoperability.