What's new in OEM 11g R2
Compression Advisor: A Compression Advisor has been added in Oracle Database 11g Release 2 to facilitate choosing the correct compression level for your data. The Compression Advisor is available through Oracle Enterprise Manager 11g Grid Control console. As part of the existing Advisor framework in Oracle Database 11g, the compression advisor analyzes objects in the database, discovers the possible compression ratios that could be achieved, and recommends optimal compression settings.
Instance Caging: Oracle Enterprise Manager 11g introduces more flexible alternatives to server partitioning to support resource management. Instance caging allows you to limit CPU count per instance and enables resource management that has more consistent support across operating systems compared to resource managers available in many operating systems. It also has lower administration overhead than traditional virtualization techniques.
Global RAC Diagnostics: Oracle Enterprise Manager 11g extends Automatic Database Diagnostics Monitor (ADDM) for Oracle Database 11gR2 by greatly enhancing cluster-wide performance analysis for Real Application Clusters (RAC) databases. For RAC environments ADDM analyses the RAC cluster and reports on issues that are affecting the entire database as well as its individual instances. DBAs can now use ADDM to perform database-wide analysis of global resources, such as high-load SQL, global cache interconnect traffic, network latency issues, skew in instance response times, and I/O capacity.
Tuning Standby Databases: Active Session History (ASH) is now available for performance diagnostics for standby databases. Using Grid Control, DBAs can quickly drill-down into problem areas that are affecting performance and resolve them with minimal impact.
High Availability Console: Accessed through Grid Control, the new High Availability Console allows you a configuration-wide summary view, with charts, of RAC and HA setups instead of individual targets. It provides HA configuration best practices and standards, along with recommendations from the new Maximum Availability Architecture Advisor, to help you implement a HA system. The HA Console also uses EM's powerful workflows and provisioning automation to minimize downtime for things like single instance to MAA conversions.
High Availability Console: Accessed through Grid Control, the new High Availability Console allows you a configuration-wide summary view, with charts, of RAC and HA setups instead of individual targets. It provides HA configuration best practices and standards, along with recommendations from the new Maximum Availability Architecture Advisor, to help you implement a HA system. The HA Console also uses EM's powerful workflows and provisioning automation to minimize downtime for things like single instance to MAA conversions.
