You can replace all hard disk members with a larger capacity hard disk to increase the storage capacity limit of the RAID group.
This operation can be operated online without interrupting data access or any NAS services.
Navigate to Main Menu → Storage and Snapshots → Storage/Snapshots.
Make sure that all hot spare hard drives and global hot spare hard drives assigned to this RAID group are disabled.
Choose a storage pool or a single statically configured volume.
Click Manage.
Choose a RAID 1, RAID 5, RAID 6 or RAID 10 group.
Select Manage → Replace hard drives one by one.
Select the hard drive to be replaced.
Confirm that the capacity of the new hard drive is greater than the capacity of the hard drive to be replaced.
Click Change.
Remove the hard drive from the slot.
Insert the new hard disk into the same slot.
Wait for the reconstruction to complete.
WARNING: Do not remove any hard drives during the RAID group reconstruction process.
Hard drive status changed back[good].
Repeat the above steps to replace all hard disks in the RAID group.
After replacing all hard drives and the rebuilding operation is complete, you can use the Expand Capacity button.
Click Expand Capacity.
The confirmation message appears.
The NAS will beep, and the RAID group status will change to
synchronizing.
WARNING: Do not turn off the power of the NAS or remove any hard drives while the hard drives are being synchronized.
The RAID group status will change to Ready.