Moving your RAID array to a different device

It is possible to move your RAID array from one device to another.

In this example we are using a RAID 5 array on an RDS2216 consisting of 4 members.

First, on the "new" device, create a RAID and assign the member slots.

# New device
/disk/add raid-device-count=4 raid-type=5 type=raid slot=raid5

Then, add the currently empty slots to the newly created RAID

# New device
/disk/set raid-master=raid5 raid-role=0 nvme1
/disk/set raid-master=raid5 raid-role=1 nvme2
/disk/set raid-master=raid5 raid-role=2 nvme3
/disk/set raid-master=raid5 raid-role=3 nvme4

After the RAID has been created and the slots have been assigned to the RAID - on the "old" device, eject the disks you want to switch to the "new" device

# Old device
/disk/eject nvme1
/disk/eject nvme2
/disk/eject nvme3
/disk/eject nvme4

Finally, you can remove the disks from the "old" device and insert them in the assigned slots in the "new" one. RouterOS will automatically detect a RAID superblock and mount the array without any additional input.