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mdadm

RAID management utility.

More information.

• 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}

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