There is more to RAID than a leading name brand insecticide. RAID provides the technology to scale Input-Output (I-O) and system performance of applications and provide high availability. Proactive design, architecture and deployment of optimal RAID configurations are quintessential to gaining scalable I-O performance. It is important to understand the RAID solutions offered by each hardware vendor, before any implementation is done. A solid understanding of the application to be supported plays a large part in RAID selection. Researching the application and the details of the vendor's RAID offerings must be the starting point of any I-O subsystem design. As always, DBA 101 common sense needs to be applied on a continuous basis, some things never change - DATA tablespaces needs to be separated from INDX tablespaces.
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