About the "cloud"

Discussion in 'Smalltalk' started by TiTex, Jul 18, 2012.

  1. TiTex

    TiTex Member

    everywhere are talking about clouds private or public ... isn't "the cloud" just a fancy word for own hosting ?
    what exactly makes a cloud and why it's called a cloud since we had this before ?
    Last edited: Jul 18, 2012
  2. falko

    falko Super Moderator Howtoforge Staff

  3. TiTex

    TiTex Member

    thx for the link ... as i said just a fancy word for hosting nothing new in terms of technology
    so the major aspect that makes a cloud is scalability since almost every service offered to the end user is virtualized/clustered with lots of backend storage space/devices

    this what i'm thinking about "the cloud" (cloud computing)
  4. falko

    falko Super Moderator Howtoforge Staff

    Sometimes "cloud" just means online storage, and it doesn't have to be virtualized or distributed over multiple servers (see the ownCloud project). So you can never be sure what the other one means if he talks about the cloud. It's more of a marketing buzzword...
  5. TiTex

    TiTex Member

    that's exactly right :)
  6. cfoe

    cfoe Member

    I think the term cloud is abused by marketing but there are some aspects that I associate with the concept of the cloud.

    A cloud environment is Infrastructure as a Service (IaaS) consisting of many services available on Demand on a pay-as-you-go basis.
    Flexibility, automation, scalability and smooth interactions within the whole infrastructure are characteristics of the services.

    Look at Amazon AWS. AWS is a public cloud service:

    S3 - Scalable File Storage - flexible: pay by usage (used storage + traffic) without upfront cost; scalability: no limitations on storage + traffic (files size limit at 5TB); smooth interaction: CDN support through CloudFront, storage for all backup features of other AWS services

    EC2 - Virtual machines - flexible: pay by usage, instant creation and destruction of unlimited numbers of machines; scalability: several different templates; smooth interaction: easy extension of virtual block storage devices + snapshots to S3

    Route53 - DNS - flexible: pay-per-zone; scalability: unlimited (softlimit 100) in a geo-distributed virtual DNS-system; smooth interaction: API

    and many more but you get my point.

    The term private cloud means that you create a IaaS within your own datacenter and provide these services to yourself/your departments.

    Keep in mind: Cloud services are always controlled by APIs because of the virtual and distributed nature of the infrastructure.

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