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Software RAID is performed via the Linux kernel. No RAID controller is required on the computer. If the computer has a Linux compatible RAID controller then hardware RAID can be used. Hardware RAID is not discussed here.[[Software RAID]] is performed via the Linux kernel. No RAID controller is required on the computer. If the computer has a Linux compatible RAID controller then hardware RAID can be used. [[Hardware RAID]] is not discussed here. mdadm is a Linux utility used to manage and monitor software RAID devices. It is used in modern GNU/Linux distributions in place of older software RAID utilities such as raidtools2 or raidtools.