Multiple Disks
Multiple disks can be managed under Settings - Storage.
When saving you choose to format disks to initialize them otherwise it will try to use existing btrfs filesystem.
BTRFS based raid is supported.
You can add any amount of disks with the following default mode:
- 1 disk: single
- 2-4 disks: raid1
- 4 and more disks: raid10
Syncloud H4 supports two disks.
Any Syncloud compatible hardware with multiple disks is also supported.
More complex configuration or management is available using command line:
Mkfs
snap run platform.mkfs-btrfs
Btrfs
snap run platform.btrfs
Two disk setup and one disk failed, migrate to single disk mode (will be implemented in UI at some point)
# check that disk is not mounted
mount | grep external
mkdir /recover
mount -o degraded [device] /recover
# the following step may take an hour or more
snap run platform.btrfs balance start -f -mconvert=single -dconvert=single /recover
snap run platform.btrfs device remove missing /recover
snap run platform.btrfs balance start -mconvert=dup /recover
umount /recover
rm -f /recover
Reboot the device and activate the external disk from Settings - Storage. Later you can add a new second disk to the array using Settings - Storage.