3ware 9550SX SATA II RAID Controller Optimized Performance Report for Windows and Linux
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Overview: The 3ware 9550SX controller performs exceptionally well when the file system provides high levels of sequential I/O. Performance tuning characteristics can vary with the number of attached drives and the relative size of data blocks. Performance typically scales with the addition of drives to an array. Read and write performance improves when scaling from one to 12 drives for write operations, and from one to 16 drives for read operations. Write performance is affected by several factors including the amount of available disk bandwidth, on-board processing power, and the complexity of RAID 5 writes with parity generation.