Replace disks

[mikepelham]

I can't find out whats wrong. I have a TS453A with 2x 2tb in raid 1 and 2x 3tb in a separate raid 1 group.
Not sure if this was a good idea but it seemed so at the time.
I reached the capacity threshold and had to replace a failing disk anyway so I replaced the 2x 3tb with 4tb disks.
I did a hot swap as I've always done on failing disks and assumed the system would see the new sizes and allow me to increase the group and therefore pool size.
It does not. I then followed the manual for replacing disks and actually went through the Replace Disk One By One procedure - another 12 hours to rebuild ...
No difference - the Expand Capacity button is still greyed out.
this is the procedure
https://www.qnap.com/en/how-to/tutorial ... ty-upgrade
result:

qnap_expand_capacity.JPG

Mike

[dolbyman]

Did you pool the two RAID1 together or are they in a separate volume each ?

[mikepelham]

They are all in the same volume. I probably should have separated them but I didn't understand that at the time.

[dolbyman]

what is the current pool size?

can you expand the overall pool size?

[mikepelham]

Although I now have 2TB+4TB=6TB of disk , much of it is lost , the system shows 5.44TB available but then when I select 'pool capacity' it selects ~4.98TB and also says this will exceed the physical capacity and that this cannot be undone.

I thought the idea of thin volumes was that you could raise and lower the sizes.

qnap_expand_capacity5.JPG

I'm only using under 4TB as far as I can tell , however its flagging warnings about close to full.

qnap_disk_usage.JPG

Also Treesize shows a huge snapshot dir although I turned that off to save space - but that might be a false report by Treesize

[dolbyman]

(2+4)*0.9=5.4-system .. seems about right

the warning thresholds can be changed or disabled