Could you supply the output of the folliowing for the nas_ist_wdtd_01 volume and hosting aggregate, as well as the SnapMirror destination:
df -h -S
df -h -A
aggr show_space -h
FYI...the volume gurantee setting would not affect the used space in the volume, but rather in the aggregate. Also, the fractional_reserve will only affect SAN volumes. Just to explain why you've seen no change in the volume used space.
I just noticed overnight that the amount of volume space used has gone down from 92% to 60% although the used space is still the same (165GB). The only thing I can think of is that the reset sis or sis start -s (I ran both) were doing backuground cleanup.
Still the capacity used (60%) does not reflect the used capacity of 165GB out of 4TB.
Also, last night we were trying to cleanup and vmotion servers away from aggr1 to aggr0 as it was hitting 93-95%.
I don't have a copy of the df -Ag from last night, but it was approx aggr0 37% , aggr1 93%. ATM, it is aggr0 57%, aggr1 63%.
Here are the outputs from this morning:
vol size: Flexible volume 'nas_ist_wdtd_01' has size 4t.
Your volume is thin provisioned with virtual size almost equal to aggregate size. So it can have only as much free space as aggregate has. Must other volumes are thin provisioned too, so any change in consumed capacity on any volume will affect all of them.