Profiling and Discovery Sizing Guidelines

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Hardware Guidelines for Foreign Key and Overlap Discovery

The hardware resource guidelines depend on whether column signatures are available before the profile run.

The Profiling Service Module uses a couple of strategies to infer foreign keys or overlap columns. If column signatures are available before the profile run, the Profiling Service Module does not require additional resources. If the signatures need to be computed, the profile needs additional resources.

The hardware resource requirements are as follows:

Component	Requirements
CPU	Requires two CPUs for each mapping.
Memory	Requires 64 MB of additional memory for internal caches If no column profile is run. Requires no additional memory if column profile is run.
Disk	Does not require temporary disk space.