ZFS / zpool size

Tom Evans tevans.uk at googlemail.com
Tue Jan 17 16:18:11 UTC 2012


On Tue, Jan 17, 2012 at 4:00 PM, Christer Solskogen
<christer.solskogen at gmail.com> wrote:
> A overhead of almost 300GB? That seems a bit to much, don't you think?
> The pool consist of one vdev with two 1,5TB disks and one 3TB in raidz1.
>

Confused about your disks - can you show the output of zpool status.

If you have a raidz of N disks with a minimum size of Y GB, you can
expect ``zpool list'' to show a size of N*Y and ``zfs list'' to show a
size of roughly (N-1)*Y.

So, on my box with 2 x 6 x 1.5 TB drives in raidz, I see a zpool size
of 16.3 TB, and a zfs size of 13.3 TB.

Cheers

Tom


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