ZFS available space difference between 10.0 and 10.1
Mark Kane
mark at kane.mn
Tue Dec 2 23:25:04 UTC 2014
On 2014-12-02 01:19, Freddie Cash wrote:
> IIUC, ZFS now reserves 3% of pool space for administrative purposes
> (namely
> to be able to delete things when "pool is full").
>
> So a pool imported on 10.0 will show more available space than a pool
> imported on 10.1.
Thanks Freddie. I had looked through the 10.1 release notes and UPDATING
for any changes in how ZFS reserves space, but did not note anything
that looked relevant. Appreciate the info.
It probably isn't super common to run pools so close to capacity like
this one is (being used for temporary storage from a failed raidz), but
if this is a known change that affects existing pools it would be great
to have it in the release notes as it has the potential to break
existing pools/filesystems in some cases :).
Thanks again,
-Mark
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