At present, most enterprises in the financial industry have established data centers to centralize big data. All transactions basically need the cooperation of the data center server to complete. The data center has become an important infrastructure to ensure the normal operation of the financial industry information system. How to ensure the continuous and reliable operation of the data center and how to deal with and effectively resolve the risks brought by data concentration have become increasingly important topics in the industry.

Disaster recovery backup of data center refers to the establishment of an independent disaster recovery data center outside the primary data center to ensure that when the primary data center stops working due to an unexpected disaster, the disaster recovery data center quickly takes over all or part of the original business running in the primary data center to reduce or avoid losses caused by the disaster.

Disaster recovery backup solution for financial enterprises

Wavelength division multiplexing technology is mainly used for disaster recovery in the same city to realize real-time backup of data and real-time switching of business, so as to ensure business continuity. Real time backup in the same city can ensure that the data of the main data center and the disaster recovery center are completely consistent and reach the highest data protection level. It is particularly applicable to core and key businesses, such as applications requiring RPO/RTO to be close to zero.

First of all, WDM has large bandwidth and strong scalability, which is particularly suitable for applications where data storage services have a huge demand for bandwidth and subsequent bandwidth expansion is frequent. WDM is a multi wavelength transmission system with huge transmission bandwidth and flexible expansion. At present, the mainstream WDM system in the industry is 40/80 wave. If each wavelength transmits 10G bandwidth, 80 wavelengths can transmit 800G bandwidth; If each wavelength transmits 40G bandwidth, 80 wavelengths can transmit 3.2T bandwidth; If each wavelength transmits 100G bandwidth, a single fiber can achieve 8T quality transmission bandwidth.

WDM can flexibly increase the number of wavelengths according to the increase of bandwidth requirements. For example, there are 80G storage data to be transferred from the production center to the backup center, so the WDM system only needs to use 8 wavelengths; If the subsequent 40G data needs to be backed up for transmission, the WDM system only needs to add 4 more wavelengths.

Secondly, as an optical transmission technology, WDM has extremely low transmission delay, which is very suitable for the real-time requirements of disaster recovery systems. WDM transmission delay is mainly composed of optical fiber, dispersion compensation optical fiber and WDM device delay. Among them, the transmission delay of optical fiber is fixed. If you want to further reduce the delay, you can only start with dispersion compensation and WDM equipment. The 100G coherent technology of Xintai Communication can realize DCM free, and the device delay can reach our level.

Third, as a mature technology form, WDM is very perfect in network security and reliability. Xintai communication wavelength division equipment provides rich network level protection means, including channel 1+1 protection, optical line protection, etc., which can fully meet the requirements of disaster recovery network for high security and reliability of data storage services.