| 摘要 | 第1-5页 |
| Abstract | 第5-7页 |
| 1 Preface | 第7-18页 |
| ·Background of the research | 第7-8页 |
| ·Overview of data disaster recovery systems | 第8-12页 |
| ·Overview of Different Caches Designs | 第12-17页 |
| ·Contents and organization of this study | 第17-18页 |
| 2 Online backup service system architecture | 第18-23页 |
| ·System architecture | 第18-20页 |
| ·The tripartite communication protocol | 第20-21页 |
| ·Chapter summary | 第21-23页 |
| 3 Design and implementation of storage server | 第23-46页 |
| ·Overall design of storage server | 第23-24页 |
| ·Multi-level index data storage organization | 第24-33页 |
| ·Initialization of storage server | 第33-38页 |
| ·Data organization and index management module | 第38-44页 |
| ·Chapter summary | 第44-46页 |
| 4 Design and implementation of LRU cache | 第46-54页 |
| ·The main key technologies | 第46-47页 |
| ·The implementation technique of LRU cache | 第47-52页 |
| ·Processing of Querying data blocks during data back up | 第52页 |
| ·Process of reading data blocks during data recovery | 第52-53页 |
| ·Chapter summary | 第53-54页 |
| 5 System performance experiments and analysis | 第54-59页 |
| ·Experiments environment | 第54页 |
| ·Backup/Recovery performance experiments without LRU cache | 第54-55页 |
| ·Backup/Recovery performance experiments with 16KB LRU cache | 第55页 |
| ·Backup/Recovery performance experiments with 8MB LRU cache | 第55-58页 |
| ·Chapter summary | 第58-59页 |
| 6 Summary | 第59-60页 |
| Acknowledgment | 第60-61页 |
| References | 第61-63页 |
