Examples with "each cluster database instance" and their translation in Japans
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The calculation is based on the status of each cluster database instance. As long as one database instance is up, the cluster database is up...
Check the status of each cluster database instance to determine if it is up. Also, check the listener to make sure it is running on all the nodes. If the listener is running, check to see if the number of users is at the session limit. Make sure at least one of the cluster database instances is up. For details, refer to the database instance Status metric.
An Oracle RAC cluster comprises two or more nodes that are linked by a private interconnect. The interconnect serves as the communication path between nodes in the cluster. Each cluster database instance uses the interconnect for messaging to synchronize each instance's use of the shared resources. Oracle RAC also uses the interconnect to transmit data blocks that are shared between the instances.
Each cluster database instance has its own buffer cache in their System Global Areas (SGAs). Using Cache Fusion, Oracle RAC environments logically combine each instance's buffer cache to enable the database instances to process data as if the data resided on a logically combined, single cache.
Oracle Real Application Clusters provides a high-availability database environment spanning multiple hosts. Each cluster can be comprised of multiple cluster databases, each of which consists of multiple cluster database instances. A cluster database is available as long as one of its instances is available.
View the overall system status, such as the number of nodes in the cluster database and their current high-level view capability means that you do not have to access each individual database instance for details if you just want to see inclusive, aggregated information.
In the Options step, the system checks the port availability for each host you select in the Host List step. The system also ensures that another database is not currently using the prefix for cluster database instances.
Each metric displays a monitoring page for each metric monitoring page you can view the data for that metric in either a summary chart or using tile charts. You can also view the Maximum, Average, Minimum chart on the metric monitoring page to view the maximum, average, and minimum values for the metric for all active cluster database instances.
The Cluster Topology page offers two views. In one view, a high-level topology appears in which the hierarchy consists of only one interconnect, one or more cluster databases, one or more listeners, and one or more database instances. In the other view, the topology shows all targets for all hosts, with each host appearing as its own self-contained and separate topology.
If you are using Oracle Real Application Clusters (RAC), you can use Global ADDM to analyze the throughput performance of a database cluster. In global mode, ADDM considers DB time as the sum of database times for all database instances. Global ADDM also reports findings that are significant at the cluster level. For example, the CPU consumption of each cluster node may be insignificant when considered locally, but the aggregate consumption may be a significant problem when considered globally.
Oracle Real Application Clusters(RAC)を使用している場合は、グローバルADDMを使用してデータベース・クラスタのスループット・パフォーマンスを分析できます。グローバル・モードでは、ADDMではDB時間がすべてのデータベース・インスタンスについてのデータベース時間の合計とみなされます。また、グローバルADDMでは、クラスタ・レベルでの重大な結果がレポートされます。たとえば、クラスタ・ノードごとのCPU消費率は、ローカルで考える場合には大きな問題にはなりませんが、グローバルで集計した消費率を考える場合には大きな問題になることがあります。
In an Oracle Real Application Clusters (RAC) environment, you can use ADDM to analyze the throughput performance of a database cluster. ADDM for RAC considers DB time as the sum of database times for all database instances and reports findings that are significant at the cluster level. For example, the I/O levels of each cluster node may be insignificant when considered locally, but the aggregate I/O may be a significant problem for the cluster as a whole.
Oracle Real Application Clusters (RAC)環境で、ADDMを使用して、データベース・クラスタのスループット・パフォーマンスを分析できます。RACのADDMは、すべてのデータベース・インスタンスのデータベース時間の合計としてDB時間を検討し、クラスタ・レベルで重要な結果を報告します。たとえば、各クラスタ・ノードのI/Oレベルは、ローカルで検討する場合、重要ではない可能性がありますが、集計I/Oは、クラスタ全体で重要な問題の可能性があります。
An alert log is created for each instance in a cluster database.
Change the desired service policy for each instance configured for the cluster database.
クラスタ・データベース用に構成された各インスタンスについて、必要なサービス・ポリシーの変更
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