Hi,
The vol status -S command displays the space used by each of the file system components as well as other features. The vol status -S command includes offline volumes. For example, you might want to understand why the df command output shows that a large amount of space is still used even though you deleted all of your data in a volume. In this case, output for the volume space usage command might show that it is due to Snapshot copies, inodes, or other metadata that does not shrink.
Only non-zero values are displayed in the command output. However, you can use the -v parameter to display all possible feature rows regardless of whether they are enabled and using any space. A value of - indicates that there is no data available to display.
The following tables explain some of the common rows in the vol status -S command output and what you can do to try to decrease space usage by that feature:
The output for this command consists of the following main categories:
User data
Volume metadata
Snapshot copy information
Total used space
You can also refer this link which explains about how to determine and control space usage in a volume, https://library.netapp.com/ecmdocs/ECMP1196986/html/GUID-77437C70-6983-4BF7-AA01-2E5F7C709059.html
Thanks
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