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tldr/pages/linux/mdadm.md
marchersimon dac4a71077
multiple pages: replace all die.net links (#5528) 
Most of the links were replaced by manned.org,
except when there are more up-to-date sources (like `ifup`)
or first-party sources (like `sftp`).
2021-04-16 15:42:14 +01:00

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mdadm

RAID management utility. More information: https://manned.org/mdadm.

  • Create array:

mdadm --create {{/dev/md/MyRAID}} --level {{raid_level}} --raid-devices {{number_of_disks}} {{/dev/sdXN}}

  • Stop array:

mdadm --stop {{/dev/md0}}

  • Mark disk as failed:

mdadm --fail {{/dev/md0}} {{/dev/sdXN}}

  • Remove disk:

mdadm --remove {{/dev/md0}} {{/dev/sdXN}}

  • Add disk to array:

mdadm --assemble {{/dev/md0}} {{/dev/sdXN}}

  • Show RAID info:

mdadm --detail {{/dev/md0}}