10K vs 15k rpm for analytics

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Anyone has any experience doing analytics with postgres. In particular if 10K rpm drives are good enough vs using 15K rpm, over 24 drives. Price difference is $3,000.

Rarely ever have more than 2 or 3 connections to the machine.

So far from what I have seen throughput is more important than TPS for the queries we do. Usually we end up doing sequential scans to do summaries/aggregates.

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