Please enable JavaScript.

Coggle requires JavaScript to display documents.

Cloud Computing (What? (After Clouds (Utility Computing (Why? (Cost…

- - - - RIA (Rich Interface Web Application)
        
        AJAX
        
        Front end
        
        MapReduce
        
        Back end
        
        What
        
        Batch oriented process of dataset
        
        Highly parallel
        
        Framework
        
        Hadoop
        
        Spark
    - - What?
        
        metered internet service
        
        dynamically provision VM
        
        Heavy utilization of virtualization
        
        single server multiple OS instances
        
        cost minimal, can exist on same server
      - Why?
        
        Cost capital vs operating expenses
        
        Scalability: infinite capacity
        
        Elasticity: scale up or down on demand
      - Does it make sense?
        
        Benefits to cloud users
        
        business case for cloud providers
    - - Utility computing
        IaaS
        
        why buy if you can rent
      - PaaS
        
        nice API
      - SaaS
        
        Just run it for me
  - - - Hardware
      - Software
- - - - manage hardware
      - manage IT people
      - etc
  - - - web-scale problems
        
        characteristics
        
        data intensive
        
        processing intensive
        
        example
        
        crawling, indexing, searching, mining the web
        
        post genomics life science research
        
        sensor networks
        
        web 2.0 or more applications
    - - large data center
        
        history
        
        decades ago: ridiculously huge computer
        
        few years ago: PC replace everything
        
        now: networked data centers with centralized computing
        
        future: no need data center investment
        
        Google Architecture
        
        many but cheap servers
        
        ~1/2M servers @ 12 locations
        
        issues
        
        redudancy
        
        efficiency
        
        utilization
        
        management
    - - different models
        of computing
        
        why do it urself
        
        SAAS
        
        run it for me
        
        in the cloud
        
        using ultralight input device
        
        mobile
        
        tablet
        
        PAAS
        
        niceAPI
        
        Customer interaction
        
        Runtime services
        
        apps leverage infrastructure
        
        Layer of software encapsulated provided as service to build higher level services
        
        IAAS
        
        utility computing
        
        why buy when you can rent
        
        basic storage
        
        compute capabilities
    - - highly interactive web applications