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What is the difference between “hardware” RAID and “software” RAID?

April 26, 2017hardware raid Software

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What is the difference between “hardware” RAID and “software” RAID?

2 Answers

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Hardware RAID utilizes a special physical controller that maintains information about the hard drives in the volume. Software RAID (for example, in Windows 2003 Server) is an implementation of RAID wherein the normal drive controller is used, and software manages the drives in the array.

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Hardware RAID utilizes a special physical controller that maintains information about the hard drives and controls the data write and access functions for the volume. Software RAID (for example, in recent Windows and Mac O/S versions) is an implementation of RAID wherein the normal drive controller is used, and software manages the drives in the array. It can be a less expensive way to implement RAID data storage, but it can be much slower as it places a heavy burden on CPU and memory resources.