Re: ZFS pool/filesystem space oddity

From: Steve O'Hara-Smith <steve_at_sohara.org>
Date: Sun, 03 Mar 2024 17:46:29 UTC
On Sun, 3 Mar 2024 11:58:59 +0000
"Steve O'Hara-Smith" <steve@sohara.org> wrote:

> 	Hi,
> 
> 	My NAS runs a ZFS pool called archive striped over two mirrored
> pairs of 4TB drives. It all works fine but I had a space eater recently
> and so have been paying closer attention to space reports than normal -
> which is why I noticed the oddity that the filesystems in the pool are
> reported as having more free space than the pool.
> 
> 	Why is this ? Which is right ?

	Turns out to be due to the difference between df -H and df -h.

✓ steve@holdall ~ $ df -H /data
Filesystem      Size    Used   Avail Capacity  Mounted on
archive/data    7.0T    4.0T    3.0T    57%    /data
✓ steve@holdall ~ $ df -h /data
Filesystem      Size    Used   Avail Capacity  Mounted on
archive/data    6.4T    3.7T    2.7T    57%    /data

	Sorry for the noise.

-- 
Steve O'Hara-Smith <steve@sohara.org>