Balancing System Cost and Data Value With Sun StorageTek Tiered Storage Systems for Oracle Transaction Processing Applications 
by Jeffrey T. Wright
February, 2008
Tiered storage architectures reduce cost without affecting business operations by matching data resources with storage resources. Because Oracle databases control data placement through tablespaces and quantify data access requirements through accounting tools, storage architectures can be customized to an Oracle instance by correlating storage device configuration with the data from Oracle accounting tools. For transaction processing systems running on Fibre Channel disks, the most important design heuristic is the read response time for a given effective I/O rate. The engineering data presented in this Sun BluePrints article shows how to determine the most appropriate heuristic for Oracle transaction processing systems, and how to apply this heuristic to meet specific data access requirements.
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