SSAS Storage Mode

MOLAP - The partition storage mode is standard MOLAP. Proactive caching is disabled. You need to process the partition to refresh data.

Scheduled MOLAP - Same as MOLAP except that the server will process the partition on a daily schedule.

Automatic MOLAP - The default silence interval is set to 10 seconds. As a result, the server will not react if the data change batches are fewer than 10 seconds apart. If there is not a period of silence, the server will start processing the cache in 10 minutes.

Medium-latency MOLAP - Similar to Automatic MOLAP except that the MOLAP cache expires in 4 hours.

Low-latency MOLAP - The MOLAP cache expires in 30 minutes.  

Real-time HOLAP - As with standard HOLAP, partition data is stored in the relational database, and aggregations are stored in the cube. Aggregations are rebuilt as soon as a data change notification is received.

Real-time ROLAP - As with standard ROLAP, partition data and aggressions are stored in the relational database. The server maintains an internal cache to improve query performance. When the change notification is received, the server drops the ROLAP cache to ensure that data is not out of sync with the data in the relational database.


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