Skip to main content

What are public, private and hybrid clouds?

Public, Private and Hybrid clouds:
Public Cloud:

Public clouds are the most common type of cloud computing deployment.

The cloud resources (like servers and storage) are owned and operated by a third-party cloud service provider.

Computing in which service provider makes all resources public over the internet. It is connected to the public Internet. 

In a public cloud, you share the same hardware, storage and network devices with other organisations.

Advantages:

  • Low cost
  • No maintenance
  • Scalability
  • Low Failure rate

Disadvantages:

  • Data security and privacy
  • Loss of control
  • Lack of options
  • Lack of customization

Private Cloud:

A private cloud consists of cloud computing resources used exclusively by one business or organisation. 

Physically located at your organisation’s on-site datacenter or it can be hosted by a third-party service provider.

Ability to provide dedicated resources. 

Advantages:

  • High security
  • High performance
  • Easy customization
  • Compliance
  • Better Control

Disadvantages:

  • Costs are substantial in the case of building an on-premise private cloud. 
  • The running cost would include personnel cost and periodic hardware upgrade costs.
  • Under utilization cost
  • Capacity ceiling

Hybrid Cloud:

Hybrid cloud combines on-premises infrastructure a private cloud with a public cloud.

Hybrid clouds allow data and apps to move between the two environments.

    Advantages:

    • greater flexibility
    • more deployment options
    • scale up
    • you can migrate gradually

    Disadvantages:

    • difficult to implement
    • difficult to maintain
    • security breaches to systems
    • complicated operations for organizations



    Labels:

    Comments

    Post a Comment

    Popular posts from this blog

    Certified Enterprise Architect Professional (CEAP) - Module 5 - Architecture Frameworks

    Architecture Frameworks: An Architecture Framework is a theoretical structure that has the purpose of developing, executing, and maintaining an Enterprise Architecture. Advantages of EA framework: Simplify Breaks down areas of the business process Organise business components and create and identify relationships between business Determine the scope Customization in the existing framework Disadvantages of EA framework: Need to follow process Provides only direction and not information It's based on goal and objective Need creativity and proactive thinking Zachman Framework: The Zachman Framework is a widely used model in Enterprise Architecture (EA) that provides a structured way to classify and organize an organization's information infrastructure by defining different perspectives from various stakeholders, allowing for a holistic view of the enterprise and facilitating alignment between business needs and technology solutions; essentially acting as a template to organize arc...
    Post a Comment
    Read more

    Daily Agile Scrum stand-up meeting guidelines

    Followers of the Scrum method of project management will typically start their day with a " stand-up meeting ". In short, this is a quick daily meeting (30 minutes or less) where the participants share the answers to the three questions with each other: • What did I accomplish yesterday?  • What will I do today?  • What obstacles are impeding my progress?  Some people are talkative and tend to wander off into Story Telling .  Some people want to engage in Problem Solving immediately after hearing a problem. Meetings that take too long tend to have low energy and participants not directly related to a long discussion will tend to be distracted. These are the minimum number of questions that satisfy the goals of daily stand-ups. Other topics of discussion (e.g., design discussions, gossip, etc.) should be deferred until after the meeting.  Here are few tips for running a smooth daily meeting:  • Everyone should literally stand-up and no one should sit down ...
    Post a Comment
    Read more

    Certified Enterprise Architect Professional (CEAP) - Module 4 - Architecture Precursors

     Architecture Precursors: Precursors to modern Enterprise Architecture (EA) include early frameworks like IBM's Business Systems Planning (BSP), which focused on aligning business strategy with information systems, as well as other Information Systems (IS) architecture methodologies that emerged in the 1970s and 80s, emphasizing the connection between business processes and IT systems, laying the groundwork for the holistic view of an organization that EA represents today; the "Master Plan for Information Systems" by Evans and Hague is also considered a foundational concept in this area. Drivers: internal / external pressure enforce to change the system Aims & Directives: Aims:  Goals Objectives Requirements Directives: Principles (example: Principles can be associated with business, data, applications, infrastructure, or security) Policies (example: Members of the public have minimal access to data) Business Rules (example: A rule directs and restricts a procedure)
    Post a Comment
    Read more