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Ch1-1 Concepts - Coggle Diagram

- - - - VM
      - containers
        
        no OS
        
        only need app to launch
        
        Docker
      - serverless computing
        
        run code without server
        
        function based
    - - data
        
        read / write
  - - - High availability
        
        高可用性, SLA
      - Scalability
        
        快速增減資源
      - Elasticity
        
        自動增減資源
      - Agility
        
        快速部屬
      - Fault tolerance
        
        容錯, 部分失敗也持續運作
      - Disaster recovery
        
        快速資源因應
      - Global reach
        
        通全球
      - Customer latency capabilities
        
        根據地區就近部屬,減少延遲
      - Predictive cost considerations
        
        費用可估算
      - Technical skill requirements and considerations
        
        對於技術人員要求較低
      - Increased productivity
        
        省去更新維運硬體,提高生產力
  - - - Server cost
      - Storage costs
      - Network cost
      - Backup / archive costs
      - Organization continuity / disaster recovery costs
      - Datacenter infrastructure costs
      - Tech. personnel
    - - software and customized features
      - Scaling
      - Billing at user/organization level
  - - - 沒有前期投入
      - 無底層硬體成本
      - 根據需求擴充服務/資源
      - 隨時可處理閒置資源
- - - - IaaS
        
        Network
        
        storage
        
        datacenter
      - PaaS
        
        runtime(OS)
        
        Dev. tools / DB management / bus. analytics
      - SaaS
        
        applicaitons / apps