High-avaibilitv Model Research Of Commercial Bank Open-platform System

For modern commercial banks, the safe and stable operation of the bank information system, has attracted more and more attention, supervision and demanding requirements. Banking technology information system mainly includes the mainframe platform, open platform, network and computer hardware environment, high availability of every aspect are dependent on the hardware and software redundant structure design and reliability. The mainframe platform strictly maximize the degree of redundancy to ensure smoothly running, and the open platform system high availability implementation need to consider the overall in the network architecture, hardware, operating system, database software, application software, in order to ensure failure in any one of condition, can recovery promptly and keep data synchronization.At present, the availability of open platform system solution:at the network architecture, using double communication network and equipment to avoid communication error with lines and network card failure; at the hardware aspect, using redundancy device to achieve high availability design of the key hardware; at the operating system aspect, mainly use of disk array sharing multi machine data, with the high availability software provided by operating system company; in addition, some database software, application software that provides a cluster solution. However, the deployment of the system high availability mode, some problems still exist in practical operation, such as mutual standby system takeover success rate is low, with more manual intervention and uncontrollable time used.This thesis from the system availability analysis model in hand, summarizes three ways to improve the availability of the open system; details of the high availability cluster technology and virtual technology; through the deep research on the frontier of high availability technology and the industry mature high availability solutions, and practice my work, combined with actual characteristics of the agricultural bank information system and the specific needs of high availability, put forward a set of suitable for construction bank open system of enterprise high availability framework; and based on the above research, select the application project of the reform practice of high availability optimization.In promoting the research subject of this thesis, through the research of high availability products to the forefront of high availability technology and mainstream, in-depth analysis, include the possible risk of open system, study and formulate the stability characteristics for agricultural bank informatization construction of enterprise high availability framework mode, has a wide application in the head office data center of the Agricultural Bank and the branches, and achieved good economic and social benefit, provides the beneficial reference for the trade information system with high availability and construction.