Forum Discussion

Aspirant

Jun 10, 2017

Solved

First expansion, not the space I expected

Been with this ReadyNAS fro about 4 years, first time posting... I performed my first Xraid expansion yesterday, swapping a 2TB drive with a 4TB drive, however, my expanded RAID is not fully utili...

Adding Disks

mdgm-ntgr
Jun 11, 2017
You'll need to replace another disk with a 4TB one to get further vertical expansion.

Note that expansion is limited to 8TB over the life of the volume and you cannot expand past 16TB.

mdgm-ntgr

NETGEAR Employee Retired

Jun 11, 2017

You'll need to replace another disk with a 4TB one to get further vertical expansion.

Note that expansion is limited to 8TB over the life of the volume and you cannot expand past 16TB.

StephenB
Guru - Experienced User
Jun 11, 2017
mdgm wrote:

You'll need to replace another disk with a 4TB one to get further vertical expansion.

Correct. The capacity rule for single redundancy is pretty simple - sum the disks and subtract the largest.

In addition to the two volume size constraints mdgm-ntgr mentioned, the new disks need to be at least as large as the largest already installed.
- dalbright
  Aspirant
  Jun 11, 2017
  Ok, thanks everyone. I have another 4fb standing by, but didn't want to add it if the space was going to be wasted. Appreciate the feedback!
  - mdgm-ntgr
    NETGEAR Employee Retired
    Jun 13, 2017
    Replacing the remaing 2TB disk with a 4TB disk would get you about 2TB (approx 1.8TiB) of vertical expansion.