QNAP - Replace disks

Michael Otterstedt

Procedure to replace disks and expand the raid group. Done on Jan 25 2024.
QNAP Model: TS-262
Firmware version: QTS 5.1.2.2533

Note that rebuilding of a new disk can take days.

  1. Control Panel -> Storage & Snapshots -> Storage/Snapshots
  2. Click Manage
  3. Storage Pool -> Manage -> Replace Disks On by One
  4. Choose HDD1 -> Change
  5. Remove current HDD1
  6. Insert new HDD1
  7. Wait for rebuilding to complete
  8. Choose HDD2 -> Change
  9. Remove current HDD2
  10. Insert new HDD2
# check raid status cli
cat /proc/mdstat 

# check min/max rebuild speed
cat /proc/sys/dev/raid/speed_limit_max
cat /proc/sys/dev/raid/speed_limit_min

# change value
echo 50000 >/proc/sys/dev/raid/speed_limit_min

11. Storage Pool -> Manage -> Replace Disks On by One
12. Click Expand Capacity