Cloud 01

Principle of the Cloud

avantagesDuCloud

Benefits of the Cloud

  • Cost reduction (hardware, administration ...)
  • Resource optimization (Processors, memory ...)
  • Economy of scale (You only pay for what you use...)
  • Flexibility and reactivity (If the needs evolve ...)
  • Ease of implementation
  • Quality of service
  • Access from anywhere
  • Backup

cloudPublic

Public Cloud

Benefits

  • Cost. Infrastructure at the charge of the service provider. The customer does not bear any IT investment.
  • Fast and easy deployment (usually web portal)
  • Easy credit card purchase

Disadvantages

  • Random performance (pooling)
  • Geographic location of servers / data
  • Legal security requirements for auditing
  • Random ALS
  • Overall robustness dependent on the weakest link
  • Complication of data backups and restores (Symantec survey showing that 68% of companies experience restore failures

cloudPrive

Private Cloud

Benefits

Same advantages as simple virtualization with the addition of the following points
following:

  • Responsibilities given to the different departments
  • Ease of deployment
  • Possibility of precise re-invoicing to each department
  • Evaluation and anticipation of future IT costs

Disadvantages

  • More complex security rules
  • Management of the infrastructure is also complex