| By adequately analyzing and researching on the existing status and shared manner of the oilfield information system, summarize the following three points for realizing the concentration share system in the Daqing oilfield.1. Basing on the existing mainstream server system, build high-useable cluster system with load balancing.High-performance cluster system is a new cluster plan product, which integrates the parallel processing, load balancing, high-useable, uses high IA server system and memory product, and integrates Oracle 10g RAC parallel DB (data base) and SQL Server 2005 cluster service. It can provide DB flat form with high processing capacity, high-useable and high cost performance on Windows flat form.The system has good retractility, which is centralized to use the resource of different code, parallel finishes one task, and realizes load balancing. At the same time, it provides well fail-smooth tube, cluster system can completely shield single-point failure by the whole redundancy manner. When any code fails, other code can take over the fail-code by EMS memory synchronizing technology under the condition of no-delay and without lost data. Along with the applying, the system can increase processing capacity smoothly by increasing code number at any time,and has no negative effect on service quality of client end.2. Construct SAN storage networkStorage Area Network (SAN) is a kind of high-speed and special fiber network, which connects Disk Array, Tape Library and Server. SAN framework permits server to connect any disk array or tape library, the server can access needed data directly whether data place anywhere. Because of applying the fiber interface, SAN has the higher bandwidth. By using SAN, connects thousands of memory equipments by fast and special fiber network, and builds the SAN with low cost and easy management. SAN not only decrease the stress on the network system, but also reduce the memory cost. By centralizing the memory equipments, convenience to scrutiny and adjustment, realize the agility and convenient management.3. Realize DB cluster system basing on the new Oracle 10g DB.Now, applying actuality of daqing oilfield information is that every applying corresponds to a single DB, and DB base on different operating system, because of windows and unix, not only waste much server resource, but also difficult to management, maintenance and upgrade. After researching, decide to use Oracle 10g RAC to resolve this problem.When Oracle issued Oracle9i at 2001, he put forward the new cluster technology--- Oracle Real Application Clusters or Oracle RAC, Oracle RAC make many computers to cooperate together, just like a single system, multi Oracle instances have been accessed in one DB, this is cluster. This year, Oracle10g let RAC cluster technology to progress. Oracle10g use gridding computing model, gridding computing is to connect many Oracle RAC clusters, lets computery and memory system to cooperate together, and provides stupendous productivity. The core of it is to share disk subsystem, nodes in cluster can visit all of data, redo log, control and parameter file. Data disk can be used in the whole bureau, so that all the nodes are permitted to call on the DB, every node has its redo log and control file, but other node can call on the file, and in order to renew the node when the system has the failure. This is a kind of DB resolving plan with high efficient, high dependability and high throughput. The plan use multi-set servers to conform a set of fault-tolerant operation flat form with expansion. At last, Daqing information achieves concentration share. |
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