ZFS MFC heads down
Dillon Kass
lists at loveturtle.net
Fri May 22 00:11:41 UTC 2009
On 5/21/09 4:15 PM, Kip Macy wrote:
> Your snapshots are using two thirds of your used capacity. 'df' only
> knows about the mounted file system.
>
> Cheers,
> Kip
>
>
On that subject, if anyone isn't aware this version of zfs has nicer
space accounting.
you should check out the output of
zfs list -o space
SUPER AWESOME HUH!?
unfortunately the fancy new space accounting only works on datasets
created on a pool supporting it, so all of us who upgraded our pools
will not see any output.
for example
NAME AVAIL USED USEDSNAP USEDDS USEDREFRESERV USEDCHILD
rpool/ROOT/snv_107 8.86G 3.80G - - - -
however you can just create a new dataset with zfs create to take
advantage of the new space accounting. then you'll get real output like
NAME AVAIL USED USEDSNAP USEDDS USEDREFRESERV USEDCHILD
phoenix/rsync/cifs 70.2G 272G 212G 59.3G 0 0
I can easily see here that I have 212G of snapshots for this dataset.
I just thought I would throw that out there for anyone who didn't know
about it yet.
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