Oracle 10g RAC: Grid, Services and Clustering by Lilian Hobbs PhD, Susan Hillson MS in CIS Boston

By Lilian Hobbs PhD, Susan Hillson MS in CIS Boston University, Shilpa Lawande, Pete Smith

Oracle RAC and grid know-how is remodeling the economics of top of the range database computing and is a expertise that every one Oracle pros should still get to grips with. Murali is likely one of the world's most effective autonomous specialists on Oracle RAC expertise and his publication comprises every thing you must develop into informed in either the speculation and perform of actual program Clusters. while you're making plans a RAC implementation, seeking to optimize an present RAC implementation or just are looking to develop into extra conversant in this significant know-how, you want to learn this ebook

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Extra info for Oracle 10g RAC: Grid, Services and Clustering

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Note: These are listeners used by Oracle Clusterware and should not be confused with the database listener. 6. Once connection is established between the various listeners, the node moves to an ALIVE state. 7. Now, to determine if the voting disk continues to be available, CSS performs a verification check. After an acknowledgement message is received from the vote disk, the node status moves to an ACTIVE state. 8. CSS verifies the number of nodes already registered as part of the cluster by performing an active count function.

11. Tablespaces can be transported across different platforms; while this is not a true RAC-only feature, it plays an important role in the overall availability of the enterprise configuration. Tablespaces can be transported across nonidentical platforms providing help during migration from one operating system to another. 12. The scheduler feature helps group jobs that share common characteristics and behavior into larger entities called job classes. These job classes can then be prioritized by controlling the resources allocated to each class and by specifying the service where the job should run.

GC provides a simplified, centralized management framework for managing enterprise resources and analyzing a grid’s performance. Administrators can manage the complete grid environment through a web browser through the whole system’s software life cycle, front-to-back from any location on the network. GC views the availability and performance of the grid infrastructure as a unified whole rather than as isolated storage units, databases, and application servers. Database Administrators (DBAs) can group databases and servers into single logical entities and manage a group of targets as one unit.

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