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What are the primary advantages of ROC (Raid on Chip) vs. microprocessor-based RAID?

April 26, 2017advantages chip microprocessor-based primary raid ROC vs

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What are the primary advantages of ROC (Raid on Chip) vs. microprocessor-based RAID?

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The primary advantages are price performance and advanced RAID functionality. Microprocessor-based RAID uses a dedicated (onboard) intelligent micro-processor to handle all of the RAID functions – resulting in significantly fewer calls to the host microprocessor. This frees up the host CPU and thus results in greater system performance. Furthermore, the dedicated RAID microprocessor is designed to handle advanced RAID features, such as Online Capacity Expansion (OCE) and background initialization much more efficiently than driver software-based RAID. ROC-based Raid combines the RAID functionality and I/O functionality in one ASIC, allowing for a tighter board design and lower cost of ownership.