Mdadm

mdadm

mdadm (Multiple Device Admin) is a Linux utility used for managing and creating software RAID arrays. It allows users to build, assemble, monitor, and manage RAID devices without requiring dedicated RAID hardware.

mdadm supports most common RAID levels (RAID 0, 1, 4, 5, 6, 10) and is widely used for software-based redundancy and performance solutions in both servers and personal systems.

Common mdadm Commands

• mdadm --create — Create a new RAID array
• mdadm --assemble — Reassemble existing array
• mdadm --detail — View RAID device status
• mdadm --monitor — Monitor array and send alerts

See also: RAID