mdadm:tldr:a534d

mdadm: Add disk to array.

mdadm

$ sudo mdadm --assemble ${-dev-md0} ${-dev-sdXN}

try on your machine

This command is used to assemble a RAID array using the mdadm command in a Linux system. Let's break it down:

sudo: This is a command that allows the user to execute the subsequent command with administrative privileges. It stands for "Super User Do."
mdadm: This is the command used to manage and configure software RAID (Redundant Array of Independent Disks) devices in Linux.
--assemble: This is an option for the mdadm command, indicating that the RAID array is being assembled.
${-dev-md0}: This is a placeholder that should be substituted with the actual device name or path of the RAID array. The "md0" represents the RAID device identifier. For example, if your RAID device is identified as /dev/md0, you would replace ${-dev-md0} with /dev/md0.
${-dev-sdXN}: This is another placeholder that should be replaced with the actual device name or path of the RAID member disk to be added to the array. The "sdXN" represents the disk identifier and partition number on which the RAID member is located. For example, if you want to add the partition /dev/sdb1 as a member of the RAID array, you would replace ${-dev-sdXN} with /dev/sdb1.

To summarize, the command is used to assemble a RAID array by specifying the RAID device and the member disk to be added to it. It needs to be run with administrative privileges using sudo.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

back to the mdadm tool