Change raid1/SHR (two disks only) to basic. Use as your own risk.
- Eject one of the disk in raid1.
cat /proc/mdstat
to check the raid status.md0
andmd1
are usually synology’s system partitions. So user partitions begin atmd2
mdadm --grow --raid-devices=1 --force /dev/md2
Forcemd2
change to a one disk raid i.e. basic.- Check the result in DSM.