[OpenIndiana-discuss] All of a sudden I'm feeling stupid.... Where does the COW and the newly written data go for snapshots?

[Hans J. Albertsson]

This is what it looks like on the FreeNAS box

NAME                             AVAIL   USED  USEDSNAP  USEDDS 
USEDREFRESERV  USEDCHILD
Tank/cifs                        8.93T  1.45T     9.18M 
1.45T              0          0
Tank/cifs at transfer_prep              -  8.24M         - -              
-          -
Tank/cifs at transfer1                  -   966K         - -              
-          -
Tank/cifs at now                        -      0         - -              
-          -
Tank/cifs at auto-20150513.0100-2w      -      0         - -              
-          -

I'd like to see what data is to blame for the 966K reported for 
transfer1 as "USED"

Their ZFS implementation is not quite complete, but there are other, 
management related, advantages to FreeNAS, so freenas it is.

PS, BTW, good to see Mr Gerhard on this list.

On 2015-05-12 18:58, James Carlson wrote:
> On 05/12/15 11:34, Chris Gerhard wrote:
>> On 12/05/2015 14:23, Hans J. Albertsson wrote:
>>> I mean, I know about snapdir=visible and all that, but I want to look
>>> at what data has been written to a dataset after the snapshot.
>>>
>>> What I REALLY want to achieve is to see who is writing what to my
>>> dataset when it really shouldn't be written to!
>>>
>>>
>> You want "zfs diff". That will list you the files that have changed
>> between two snapshots.
> How about that ... bitten by a stale man page.  ;-}
>