Mdadm: Difference between revisions
Created page with "Mdadm is used to create linux MD raids. ==Usage== <syntaxhighlight> # Check the status of /dev/md0 mdadm -D /dev/md0 </syntaxhighlight> ===Create a raid array=== See https://www.tecmint.com/create-raid-6-in-linux/ First use gdisk to create a linux raid partition (FD00) on all your disks. Note that is purely convention and is optional. Then run the following to create /dev/md0. <syntaxhighlight lang="bash"> mdadm --create /dev/md0 --level=6 --raid-devices=4 /dev/sda1 /..." |
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==Usage== | ==Usage== | ||
<syntaxhighlight> | <syntaxhighlight lang="bash"> | ||
# Check the status of /dev/md0 | # Check the status of /dev/md0 | ||
mdadm -D /dev/md0 | mdadm -D /dev/md0 | ||
Revision as of 00:56, 14 March 2023
Mdadm is used to create linux MD raids.
Usage
# Check the status of /dev/md0
mdadm -D /dev/md0
Create a raid array
See https://www.tecmint.com/create-raid-6-in-linux/
First use gdisk to create a linux raid partition (FD00) on all your disks. Note that is purely convention and is optional.
Then run the following to create /dev/md0.
mdadm --create /dev/md0 --level=6 --raid-devices=4 /dev/sda1 /dev/sdb1 /dev/sdc1 /dev/sdd1
# Now you have a block device /dev/md0 on which you can add LUKS, LVM, or a filesystem.
Scrubs
On Ubuntu, md will automatically scrub on the first Sunday of every month using a systemd timer.