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mdadm:tldr:67758
This command is used to remove a device from a Software RAID array using the mdadm tool in Linux. Here's a breakdown of the command:
-
sudo
: The command is run with administrative privileges to perform the removal operation. -
mdadm
: It is the command-line tool used for managing and monitoring Software RAID arrays in Linux. -
--remove
: This option instructs mdadm to remove the specified device(s) from the RAID array. -
${-dev-md0}
: This is a placeholder representing the name of the RAID array that device(s) need to be removed from. Replace${-dev-md0}
with the actual name of the RAID array. -
${-dev-sdXN}
: This is another placeholder representing the device(s) that need to be removed from the RAID array. Replace${-dev-sdXN}
with the actual device(s) you want to remove. For example, if you want to remove the device/dev/sdb1
, replace${-dev-sdXN}
with/dev/sdb1
.
Overall, the command sudo mdadm --remove ${-dev-md0} ${-dev-sdXN}
is used to remove one or more devices from a designated RAID array.