Free space not returned to aggregate as expected
Applies to
ONTAP 9
Issue
- Free Space does not show on the aggregate after deleting a snapshot and is stuck in
Delayed Frees. - High
Delayed Freescount looking at volume footprint within aggregate, the value increases over time and never decreases.
Note: This article only applies if Delayed Frees is 3% or higher.
cluster1::> volume show-footprint -vserver svm1 -volume volume_name
……
Vserver : svm1
Volume : volume_name
Feature Used Used%
-------------------------------- ---------- -----
Volume Data Footprint 14.32TB 27%
Volume Guarantee 0B 0%
Flexible Volume Metadata 0B 0%
Deduplication 275.4GB 1%
Delayed Frees 18.88TB 36%
Total Footprint 33.48TB 63%