Design And Implementation Of Disaster Recovery Protection For Postal Saving System

Since 2004 the province centralized data realized in Shaanxi province postal savings system, although the complicated network structure has been simplified and unified management of data to achieve, it also brings data security and system availability issues that should not be overlooked.Based on the SAN(Storage Area Network)architecture, this dissertation in the context of transformation of the postal savings system, many issues about the data security and high availability exist in the postal savings system are discussed, a set of effective solutions are proposed and put on implementation. This dissertation emphasizes on following issues from the perspective of design and implementation:1. High-availability system design. Combining the characteristics of Shaanxi postal savings system database, network and application, the cluster mutual backup solutions with higher data availability for Shaanxi postal savings system are proposed, and the key technology of implementing cluster mutual backup are analyzed. Elaborated the system realization colony prepares mutually key technologies MC/Service Guard colony technology2. Data security protection design. According to the characteristics of oracle9i, using RMAN technology and DP, through with the realization of local data backup and recovery at the same time tap the inherent potential oracle9i DATA GUARD technology through remote data backup.In addition, union system hardware some characteristics, specially aim at floppy disk array XP128 the characteristic, carries on the reasonable RAID0+1 plan to the floppy disk, achieves the floppy disk the memory load equalization function, thus causes the system the movement to be safer reliably.Finally, according to the SAN structure, given the structure of a SAN based on the postal savings system disaster recovery protection of the design and implementation of key technologies and difficulties on how to design and put into practice to achieve postal savings system, prove the theory and design is feasible.