Shulou(Shulou.com)05/31 Report--

What this article shares with you is about what the remote disaster recovery plan of the database is like. The editor thinks it is very practical, so I share it with you. I hope you can get something after reading this article. Let's take a look at it with the editor.

IBM is a well-known supplier of IT products in the world. They also have high strength in data storage and are global leaders in other aspects. Now many server vendors are using their data storage technology. Here we will introduce what the database remote disaster recovery solution is like.

1) warm backup of data

To maintain a set of data backup in the remote backup center, the data update of the production environment is regularly transmitted to the remote backup center in the form of logs, and its data backup is updated to ensure data consistency. It is equivalent to the snapshot technology described earlier. The collection and transmission of logs will not affect the system performance of the production environment, and disaster recovery will be based on the latest data images. IBM's ADSM remote backup scheme adopts such a backup mode, in which ADSM is an automated, centrally controlled cross-platform network backup software. Using its disaster backup module, ADSM can implement an one-to-many backup scheme.

2) Hot backup of data

In each transaction, the data of the local production environment and the remote backup center are updated at the same time to ensure the real-time consistency of local and remote data and achieve the fastest disaster recovery. This technique is equivalent to the synchronous data mirroring technology described earlier. In this scheme, the user response time of the transaction will be affected by the bandwidth of the remote network.

This backup method is used in IBM's HAGEO scheme. HAGEO system provides the most perfect disaster backup function based on RS6000 platform at present. In the HAGEO environment, before each transaction or task is completed, the system will update the data of the production system and the backup system through the remote network to ensure the real-time consistency of the data. Like HACMP dual-computer backup, it provides fault detection and automatic real-time recovery.

The above is what the remote disaster recovery plan of the database looks like, and the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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