H.A.

• 避免single point falure
• single point
• Node
• Power
• Net
• Instance
• cluseter
  
• Init
• finish
• up
• down
  
• Quorum
• measure//計算出主Quorum
• vote //投票選出主Quorum
• master
  
• PackageList
• Package
  
• NodeList
• node
  
• ResourceList
• Resource
  
• Action
• NodeList
• ResourceList
• up
• donn
• moveto
• NodeList
• Node
  
• up
• down
• status
  
• heartbeatList
• heartbeat
  
• ResourceList
• Resource
  
• netList
• net
  
• device
  
• vg
  
• disk
• file system
  
• process
•