Cloud Computing Deployment Models

- Types of Cloud Computing Deployment Models :

1. Public cloud ( multi-tenant)
2. Private cloud ( single-tenant)
3. Hybrid cloud
4. Community cloud (special purpose group)

(1)  PUBLIC CLOUD:

• Mega scale infrastructure and services
• Pay-per-use.
• Sold publically.
• Multi-tenant applications and services
• Access virtually unlimited resouces.

(2)  PRIVATE CLOUD  :

• Finite infrastructure and services.
• Enterprise owned or leased.
• Change back to logs or users.
• Cloud computing model in a company's own datacenter or providers.
• Single tenant applications and services.
• Access limited resouces that must be managed by logs or central IT.

(3) HYBRID CLOUD :

• Composition of two or more clouds.
• mixed usages of both public & private clouds.
• Enables applicaations components to be spread between  multiple  public and private cloud.