Study Of Data Storage On High Availability System With Mobile Communications

High Availability System (HA) and Safe Data Storage are of great importance and widely applied in mobile communications. To improve the availability of HA, System Redundancy, which can be classified into 2N Redundancy and N+1 Redundancy, or Hardware Redundancy and Software Redundancy, is the most common approach. To improve the security of Data Storage, there are many approaches, and because of the high data exchange speed and the high consistency requirement in Data Storage in Telecom System, the dual guarantees respectively based on Software Layer and Hardware Layer are required.In the paper, the realization methods of High Availability (HA) and Data Storage in HA System of my project, which are based on Cpx8216 base station system frame, are proposed. To guarantee the HA of the system, in Hardware Layer, the 2N Redundancy mode for the overall system, N+1 Redundancy mode for the partial system and Hot Restart work mode are applied. And in Software Layer, software designs corresponding to the hardware Redundancy mode and for the availability of the overall system, and suitable software for checking, controlling and arranging the equipments, are adopted. In the paper, Data Storage in HA System, which is realized by RAID＋ DBMS mode in the practical project, is studied , as well . Here, RAID is to guarantee the security of the storage data and reduce the data losses caused by hardware failures in Hardware Layer, DBMS is to guarantee the security and availability of the data, avoid the illegal data operations, such as illegal reading and illegal writing, and the application of the database system is to guarantee the consistency, namely availability, of the data. Moreover, the suitable DataBaseManager System is required for the high data exchange speed in the telecom operations and the suitable database design is required to improve the availability of the system and security of the Data Storage.In the practical project, the hardware equipments and the software design are both considered, that not only guarantee the availability of the system, but also accord with the requirements of the system functions for Data Storage, and, as a result, the overall performances of the system are improved to a extent.