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# Boot up login to admin panel and add sdb to the array, and wait for raid to fully sync.
# Boot up login to admin panel and add sdb to the array, and wait for raid to fully sync.
# Reboot with both drives in place, and check RAID health is OK.
# Reboot with both drives in place, and check RAID health is OK.
mdadm --grow /dev/md2 --size=max
pvresize /dev/md2
lvresize -l +100%FREE main/root
ext2online -C0 /dev/main/root
In the last command above, the -C0 is: dash C zero
If you receive an "command not found" error, try this:
resize2fs /dev/mapper/main-root &
TIP: I put an "&" at end to allow it to run in background even if I close ssh session.
Notes :
* All of this can be done while the server is up and running with the exception of #1.
* These instructions should work for any raid level you have as long as you have >= 2 drives
* If you have disabled lvm
# you don't need the pvresize or lvresize command
# the final line becomes ext2online -C0 /dev/md2 (or whatever / is mounted to)
