Reclaiming space from deleted files is done in background and can take quite some time. Check with “df –Ak” with couple of minutes in between. If available space grows steadily, nothing to worry about – it will be there eventually.
Have deleted all volumes/snapshots and I've reclaimed some of the space but there I'm still missing 1.17TB of space which is used by WAFL. It's reclaimed about 896gig but the remaining does not seem to be given back. Not sure why.
Can I force the WAFL reserve to delete or reclaim? There is no data/volumes on that aggr anymore so nothing is needed. Running a df -Ak does not show the data being reclaimed, it sits there at the same value.