1- Oracle Clusterware:
In 9i was called oracm cluster manager; renamed to Oracle Cluster
Ready Services 10.1. Finally in 10.2 called
Oracle Clusterware.
2- Virtual IP: In 9i it was take a long time to recover clients connection after node failure.
Introduced in 10.1 VIP used instead of Public IP. When a node failure happens the client connection
transferred from the failed node to another node using the VIP.
3- ASM ( Automatic Storage Management ): This feature introduced in 10.1 that is an alternative to the volume manager. It also provide double or triple mirroring. The only exception in ASM that it allow to store Oracle Database files and associated files like archive redo logs and flash recover area files.
4- AWR (Automatic Workload Repository): Introduced in 10.1; Records an extended set of database usage statistics in the database for subsequent analysis and performance tuning. Its an evolution of STATSPACK.
5- ASH (Active Session History): Introduced in 10.1; Records wait events for each session. This information is initially stored in the SGA and subsequantaly summerized and flushed to the database to be kept for time-based performance tuning.
6- FAN(Fast Application Notification): Introduced in 10.1;allows databases, listeners, application servers and clients to receive rapid notifications of database events such as start/stop database, instances or services.
Well-written application can be also utilize this to reconnect to the instance without end user aware.
7- ADDM(Automatic Database Diagnostics Monitor):Introduced in 10.1; It provides the same STATSPACK reports functionality plus detecting problems and provide resolutions.
7- Database services: Introduced in 8i and enhanced in 10.1; It's logical grouping for sessions doing the same kind of work. Service later assigned to a Preferred instance(s) and Available(backup) instance(s)
8- Database scheduler: Introduced in 10.1 and replaced DBMS_JOB package. Its more felxable by allowing jobs to be grouped in classes, job chains and windows to be created and external jobs such as shell scripts to be executed.
9- CVU (Cluster Verification Utility): Introduced in 10.2 to provide a method for verifying each stage of RAC installation process.
10- OEM (Oracle Enterprise Manager): This tool is converted from Java application to HTML web application and extended greatly. Two types of OEM available:
A- Grid Control: Allow managing multiple nodes, database, instances and more.
B- Database Control: This allow managing single database node.
2- Virtual IP: In 9i it was take a long time to recover clients connection after node failure.
Introduced in 10.1 VIP used instead of Public IP. When a node failure happens the client connection
transferred from the failed node to another node using the VIP.
3- ASM ( Automatic Storage Management ): This feature introduced in 10.1 that is an alternative to the volume manager. It also provide double or triple mirroring. The only exception in ASM that it allow to store Oracle Database files and associated files like archive redo logs and flash recover area files.
4- AWR (Automatic Workload Repository): Introduced in 10.1; Records an extended set of database usage statistics in the database for subsequent analysis and performance tuning. Its an evolution of STATSPACK.
5- ASH (Active Session History): Introduced in 10.1; Records wait events for each session. This information is initially stored in the SGA and subsequantaly summerized and flushed to the database to be kept for time-based performance tuning.
6- FAN(Fast Application Notification): Introduced in 10.1;allows databases, listeners, application servers and clients to receive rapid notifications of database events such as start/stop database, instances or services.
Well-written application can be also utilize this to reconnect to the instance without end user aware.
7- ADDM(Automatic Database Diagnostics Monitor):Introduced in 10.1; It provides the same STATSPACK reports functionality plus detecting problems and provide resolutions.
7- Database services: Introduced in 8i and enhanced in 10.1; It's logical grouping for sessions doing the same kind of work. Service later assigned to a Preferred instance(s) and Available(backup) instance(s)
8- Database scheduler: Introduced in 10.1 and replaced DBMS_JOB package. Its more felxable by allowing jobs to be grouped in classes, job chains and windows to be created and external jobs such as shell scripts to be executed.
9- CVU (Cluster Verification Utility): Introduced in 10.2 to provide a method for verifying each stage of RAC installation process.
10- OEM (Oracle Enterprise Manager): This tool is converted from Java application to HTML web application and extended greatly. Two types of OEM available:
A- Grid Control: Allow managing multiple nodes, database, instances and more.
B- Database Control: This allow managing single database node.
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