Performance Analysis of IOP Processor (XScale) for SAN/NAS Application
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Overview: Effectively managing vast amounts of storage has created the need for a robust, scalable and manageable external storage solution. The storage-area network (SAN) and network attached storage (NAS) were designed to meet these needs. In NAS and SAN environment, data is transferred from a server to the storage subsystem, and IOP subsystem memory is used as cache to store data temporarily before writing to the storage devices. This paper studies the current performance capabilities and enhancements required to achieve the RAID performance and data protection for applications running on an Intel XScale I/O 80219 General Purpose PCI Processor.