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Clusters
Oracle Application Server Clusters provide redundancy across all tiers of the Oracle Application Server. The infrastructure supports active-active or active-passive models for the different tiers. Oracle Application Server Clusters offer an active-active model for application server instances. Oracle Application Server Cold Failover Cluster offers an active-passive model.
Title |
Abstract |
Author |
At a Glance |
| Understanding Oracle RAC Internals |
Do you now manage a cluster with a cluster database? Oracle Real Application Clusters and Oracle Clusterware together introduce many new concepts that can create confusion or misunderstanding during implementation. Why do you have a voting disk and what does it have to do with a split brain? Why does a node get evicted from the cluster? Join this session to look under the covers at some of the amazing technology that makes Oracle Real Application Clusters work. Hear the what is changing with Oracle RAC 11g. |
Barb Lundhild |
Includes 11g |
| Oracle RAC - Administrative and Performance Challenges |
Have you looked back and saw how it was in those days of OPS and then 9i-RAC? With 10G-RAC, we have come along way. It is mature yet complex solution. With the introduction of CRS and ASM, the role of traditional DBA has undergone radical change. DBA is suddenly a 'SA' with clustering and storage feathers to his/her cap. It is no more just the database that they have to manage; they have to handle storage grid and the clustering framework. They have to focus on OCR disk, voting disks, private IP(s) and Virtual IP(s) and inter-connect configurations and node-failure notification services. Multi-Instance database architecture also brings in additional challenges in terms of performance monitoring, new wait events, new statistics, cache-fusion transfers, cross-instance block shipping etc. This session is all about managing the multi-node RAC database effectively. It discusses the dynamic nature RAC nodes, administrative and performance challenges, and provides real-life examples |
Madhu Tumma |
How to manage RAC effectively |
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