Determines whether the training data that Analysis Services retrieves and caches while processing a mining structure is persisted or deleted after Analysis Services finishes the processing.
The value of this property is limited to one of the strings in the following table.
CacheMode must be set to in order to use holdout. If a test data set has been defined for an existing structure by using one of the holdout parameters, changing the value of CacheMode to will delete the test data set and its definition.
Caching must be enabled to use drillthrough on the mining structure cases.