Am I at capacity on my NAS?

[carsn]

Hello!

I have a 5-bay F5-221 Terramaster NAS. It is currently setup with all 5-bays in use. I've slowly over past year or two been upgrading each bay to a larger capacity drive.

Currently it's a 6TB + 12TB + 18TB + 16TB + 16TB at total space of 68TB, with usable space of ~40TB. My last upgrade though, the 12TB I swapped out a 6TB for, I saw no storage upgrade after the RAID sync completed.

I am contemplating upgrading the last 6TB drive with an 18TB drive.

So now I'm at a bit of a standstill of, do I upgrade the other 6TB drive to 18TB (I believe the NAS supports a max of 80TB), or is this NAS at capacity and I am not going to get more space out of it?

Do you know how much space I'd get if I did upgrade to an 18TB drive for the 6TB drive?

[sammyandrews]

Hello!

I have a 5-bay F5-221 Terramaster NAS. It is currently setup with all 5-bays in use. I've slowly over past year or two been upgrading each bay to a larger capacity drive.

Currently it's a 6TB + 12TB + 18TB + 16TB + 16TB at total space of 68TB, with usable space of ~40TB. My last upgrade though, the 12TB I swapped out a 6TB for, I saw no storage upgrade after the RAID sync completed.

I am contemplating upgrading the last 6TB drive with an 18TB drive.

So now I'm at a bit of a standstill of, do I upgrade the other 6TB drive to 18TB (I believe the NAS supports a max of 80TB), or is this NAS at capacity and I am not going to get more space out of it?

Do you know how much space I'd get if I did upgrade to an 18TB drive for the 6TB drive?

Hello, in a RAID 5 configuration, one drive is used for parity, which allows for redundancy and data recovery in case of a drive failure. The usable capacity is calculated as the capacity of the smallest drive multiplied by the number of drives minus one. So, in your case, with a 6TB drive and four 16TB drives, the usable capacity would be:

Usable Capacity = (Smallest Drive Capacity) x (Number of Drives - 1)
= 6TB x (5 - 1)
= 6TB x 4
= 24TB

Therefore, even if you upgrade the last 6TB drive to an 18TB drive, the usable capacity of your NAS would remain at 24TB. This is because the usable capacity is determined by the smallest drive in the array.

[TMzethar]

What is the TOS version and RAID type?
If it is a RAID5/TRAID, When you replace the last disk with a larger one, the storage pool capacity can be increased.