Data disaster tocerance backup control system

Abstract

The invention relates to a control system of data backup and disaster recovery. It includes main control computer connecting with outside network through optical fiber, main control equipment and management terminal. There are three network interfaces in main control equipment. An interface connects with outside network, and the others respectively connect with main and backup information center with a same inside construction configuration. In normal state, outside network interface of main equipment connects with network interface of information center, namely, main information center is running. Data storaged in database is storaged into database of backup information center at the same time. Once failure happens, main control equipment connects with backup information center under controlled by main control computer and backup information starts to run. Service for users will not be broken, which realizes seamless disaster recovery. Switching time is less than 3 seconds and there is no data lost.

Description

technical field [0001] The invention relates to a data disaster recovery and backup control system, which is suitable for the comprehensive disaster recovery and backup control of application level and data level. Background technique [0002] As we all know, the reliability and security of information systems are very important. Once a large amount of information stored in a computer system is destroyed, it is very scary to be irretrievable. Therefore, the establishment of a data disaster recovery backup system is of great significance to military, national defense, commerce, Jin Yong industry and industry. First of all, establishing a data disaster recovery backup system can reduce risks, ensure that services can continue to be provided in the event of various unexpected failures, destructive accidents or disasters, and ensure the uninterrupted operation of application systems. It can greatly reduce the loss of each information center; secondly, preferably, it can protec...

AI Technical Summary

Problems solved by technology

[0004] 1) The information storage capacity of magnetic tape is limited

Especially in the case of emergencies, such as sudden disasters (such as 9.11 emergencies), the storage capacity of tapes is limited or even completely lost data

[0005] 2) Tapes can only restore data, and it is very difficult to restore the application system, and even the restoration process is quite long

[0006] 3) Due to the limitations of the tape medium itself, the tape is easily damaged by human error

Database replication technology can only handle database data, not non-database data

Its main disadvantages are: it consumes host resources (10-30%); it needs to develop its own data program; the backup data in the backup information center cannot be quickly restored to the main information center; it cannot be copied in real time, and the data loss is large

The main disadvantages are: occupying host resources (10-20%); the performance of host write operations is greatly affected by the distance; the data in the backup center cannot be restored back to the main center

[0015] In summary, the data backup and disaster recovery products of the above-mentioned prior technologies are difficult to meet the high reliability requirements for data security

The main manifestations are: it is difficult to realize comprehensive disaster backup at the application level and data level; it is difficult to ensure high-quality zero data loss; it cannot be applied to all required security and confidentiality application systems; There should be effective and seamless integration of the system; without independent copyright, it is difficult to expand, develop, upgrade and maintain

Images