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What is Software RAID?

April 26, 2017raid Software

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What is Software RAID?

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Software RAID is RAID implemented with software – no additional hardware such as a RAID controller is needed. Thus, software RAID is a good starting point to start getting some hands-on RAID experience. Also, software RAID is independent of proprietary management software – maintaining a software RAID works the same way on all machines that run Linux. However, there is something to think about too: when considering software RAID, think about performance. All RAID algorithms are done by the system CPU and every block has to be copied over the system’s data bus (i.e. sda1 <-> IO controller <-> RAM, possibly CPU <-> IO controller <-> sdb1).