The drop history segments job drops the history segments that the smart partitioning process creates when you run a segmentation policy. If you want to create a subset of history segments for testing or performance purposes, you must drop the original history segments.
Before you create a subset of the history segments, you must clone both the application database and the ILM repository. You must also create a copy of the ILM engine and edit the
conf.properties
file to point to the new ILM repository. Then you can create a segment set that contains the segments you want to drop and run the drop history segments job.
Provide the following information to run this job:
SourceRep
Source connection for the segmentation group. Choose from available source connections.
SegmentationGroupName
Name of the segmentation group that contains the history segments you want to drop. Choose from available segmentation groups.
SegmentSetName
Name of the segment set that contains the history segments you want to drop.
GlobalIndexTablespaceName
Name of the global index tablespace.
EstimatePercentage
The sampling percentage. Valid range is 0-100.
Default is 10.
ParallelDegree
The degree of parallelism the ILM Engine uses to drop history segments.