2. Information Data of Redundancy Chia-Chen Hsieh Department of Computer Science and Information Engineering Fu Jen Catholic University

3. 2 Overview Introduction – Sources (3/16) Information Data redundancy (3/16) Hardware redundancy Software redundancy System Integration

4. 3 Introduction

5. 4 Introduction (contd.) Data Information Data – 一般 一般 –Big FilesBig Files –Small FilesSmall Files Database –Full BackupFull Backup –Difference BackupDifference Backup –Increment BackuIncrement Backu HA (High Availability)

6. 5 Introduction (contd.) Data Information Data – 一般 一般 –Big FilesBig Files –Small FilesSmall Files Database –Full BackupFull Backup –Difference BackupDifference Backup –Increment BackupIncrement Backup

7. 6 Introduction (contd.) 可進行備份的時間

8. 7 Information Data redundancy 交易的例子

9. 8 Information Data redundancy (Contd.) 資料庫管理系統 DBMS 的處理流程

10. 9 Information Data redundancy (Contd.) Check Point 示意圖

11. 10 Information Data redundancy (Contd.) 當資料異常結束示意圖

12. 11 備份的方法

13. 12 恢復的不同處

14. 13 備份模式 1

15. 14 備份模式 2

16. 15 備份模式 3

17. 16 從一致性備份中恢復 / 復原

18. 17 從非一致性備份中恢復 / 復原

19. 18 High Availability and fail over Active / Standby mode

20. 19 High Availability and fail over Active / Active mode

21. 20 Thank you