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| Create a new RAID array |
mdadm --create --verbose /dev/md0 --level=1 /dev/sda1 /dev/sdb1 |
| create mdadm config file |
mdadm --detail --scan >> /etc/mdadm.conf |
| Remove disk from an array |
mdadm --fail /dev/md0 /dev/sda1
mdadm --remove /dev/md0 /dev/sda1
or in 1 step :-
mdadm /dev/md0 --fail /dev/sda1 --remove /dev/sda1
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| Add disk to existing array |
mdadm --add /dev/md0 /dev/sdb1 |
| Verify status of the array |
cat /proc/mdstat
or
mdadm --detail /dev/md0
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| Stop and delete an array |
mdadm --stop /dev/md0
mdadm --remove /dev/md0
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