Panorama: Show history of Dynamic Remastering in Oracle RAC-cluster
Unfortunately, dynamic remastering in RAC clusters has very little official documentation.
Some useful information about this topic you may get here:
As part of the performance analysis app Panorama you can view the instance-affinity of tables, indexes and their partitions as well as the history of DRM events per object or globally.
The history info is gotten from view gv$Policy_History.
The current affinity comes from view V$GCSPFMaster_Info.
The object detail view shows you the master instance of each object like here for a table:
Click on instance number list the complete history of DRM events for this object:
In addition you can also get an overview over all DRM actions of your database.
Starting with menu "Analyses/Statistics" / "RAC-related analysis" / "Dynamic remastering events historic" you can view:
1. The distribution of events over time and per RAC-instance as table as well as chart down to single event records.
2. The affected objects in considered period down to their single event records
Some useful information about this topic you may get here:
- http://oracleinaction.com/dynamic-remastering/
- https://www.hhutzler.de/blog/a-closer-look-into-drm-dynamic-resource-management/
- https://orainternals.wordpress.com/2010/03/25/rac-object-remastering-dynamic-remastering/
As part of the performance analysis app Panorama you can view the instance-affinity of tables, indexes and their partitions as well as the history of DRM events per object or globally.
The history info is gotten from view gv$Policy_History.
The current affinity comes from view V$GCSPFMaster_Info.
The object detail view shows you the master instance of each object like here for a table:
Click on instance number list the complete history of DRM events for this object:
In addition you can also get an overview over all DRM actions of your database.
Starting with menu "Analyses/Statistics" / "RAC-related analysis" / "Dynamic remastering events historic" you can view:
1. The distribution of events over time and per RAC-instance as table as well as chart down to single event records.
2. The affected objects in considered period down to their single event records
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