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Recovery System, Alvaro Moreira Villalobos, Silberschatz, A., Korth, H.,…

- - - - Old value
      - New value
      - Data-item identifier
      - Transaction identifier
      - undo changes made by a transaction
- - - - Partial failure
      - Total failure
      - Successful completion
    - - blocks
        
        two physical blocks
        
        one remote
  - - - physical
        blocks
      - disk
        buffer
      - buffer
        blocks
      - between disk and main memory
        
        input
        
        output
        
        write
        
        read
- - - - Copy the contents of the database to stable storage
      - Output a log record <dump> onto the stable storage
      - Output all buffer blocks onto the disk
      - Output all log records currently residing in main memory onto stable storage.