By default, CA Business Service Insight consists of a single ACE instance. A single engine performs all calculations. Additional ACE instances can be added to divide the workload to improve performance.
Note: If the performance issue is due to database overload, adding multiple instances does not improve performance. All instances work with the same database.
You can add an additional ACE instance to the same computer as the existing ACE instance or to a new computer. We recommend having no more than the number of instances on a computer as the number of CPUs. However, if there are other heavy services running on the same computer, we recommended having one less instance than the number of CPUs.
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