X86 Server application Case analysis on the three period of Chongqing Gold Tax Project

Gold tax three system to take the national application of large concentration and data large concentration model construction, the first to achieve national and local tax software version of Unification, is China's largest http://www.aliyun.com/zixun/aggregation/14297.html "> E-government system, is also the government industry's largest trading class production system, to take the General Administration, provincial bureau level Two deployment, of which the provincial level mainly undertakes the gold tax three period hall, the predecessor, the local characteristic and the provincial management decision-making and so on system and the function deployment.

Programme implementation

In the actual application environment, early application development companies, so the deployment of a large number of database system requirements, short-term and difficult to integrate the phenomenon, in which the provincial-level database and local characteristics of the database RAC deployment of up to 11 sets, these database systems have individual processing performance requirements, such as provincial-level clearing, Query library, and other database systems require high reliability and relatively moderate processing performance. In order to improve the processing efficiency and avoid the performance pressure bottleneck, the provincial bureau needs to deploy the predecessor database. In such a big environment, Chongqing Government tax is the first on-line pilot province, there are difficult to accurately predict the application requirements of each database.

The tax system used in the past is a minicomputer platform, but in the face of these difficulties, the minicomputer database has a high operating environment requirements, operation and maintenance of difficult, procurement and maintenance of high cost, lack of technical personnel and other adverse factors. As the first online province of gold tax three, the Chongqing government rent on the provincial hall, front, local characteristics, such as the application of the node computing resources have no actual experience value can be referred to, early application development companies, each company has put forward an independent application of the calculation of resource requirements, the total demand for larger.

Chongqing government Rent According to the requirements of the General Administration, combined with the past experience of virtualization deployment, the application of computing resources WebLogic application performance can be deployed through the large-scale deployment of load-balanced nodes, each WebLogic compute nodes for hardware resources are not too high, generally 4cpu/4g memory. Chongqing government Rent in the promotion of gold tax three project in accordance with its own actual situation, boldly put forward the use of high-end X86 PC server to build a virtual platform for the solution, in order to save construction funds, improve procurement efficiency, Chongqing Government rent with the general administration of the 64 Blade server (DELL M910/intel e7-4850/ 512G Memory/4-block NIC/2-block HBA card) purchasing requirements, using the overall virtual deployment method to promote the provincial hall, front, local characteristics, such as the application of the system deployment, the scheme has a high cost-performance, relatively stable operation characteristics, blade server and database computing equipment, the unified deployment of VMware virtualization software , realize hundreds of and even thousands of WebLogic application compute node resource pool scheduling ability. After expert demonstration and repeated testing, 16 Shuguang i960r servers were purchased as database computing equipment to build the virtual platform.

Scenario Topology

The use of virtualization deployment of production-level RAC database application cases are relatively few, in the national tax system can not learn from experience, Chongqing government rent after repeated groping, and finally summed up the RAC database virtualization connected to storage systems using the installation of bare storage equipment work more stable and efficient experience, The performance requirements of the three-stage provincial front-end database vary greatly, and the requirement of database hardware resource allocation can be dynamically adjusted through virtualization, even in extreme cases, a hardware host can allocate all resources to only one virtual machine to run the RAC node with higher performance requirements, In most cases, a physical host can be planned to be 2 to 5 RAC node virtual machines. Due to the February 22 gold tax Three-phase monorail trial run time is tight, the formal production environment required equipment procurement has not yet been in place, Chongqing Local tax emergency deployment of 5 Shuguang server (configured for 64 cores, 512G) temporarily hosted by the virtual Gold Tax three-year provincial 11 sets of database a total of 22 RAC node virtual machine, practice has proved that There is no stability or security problem with the virtual operation of database computing devices.

For a part of the provincial and municipal tax department in front of the hall deployment of the required computing equipment in a short period of time to be in place, the production system to adopt a virtualized deployment scheme will be particularly obvious, on the one hand, the performance requirements of the early deployment is not necessarily the highest, the virtual deployment of hardware resources After the procurement of hardware resources in place, can realize the production system without interruption of migration, to avoid hardware replacement and redeployment, including Oracle Database RAC node, entity machine RAC deployment migration generally need to reinstall Oracle RAC and outage migration.