Hi Bhuppi,
How to check thin / thick volumes:
vol show -fields space-guarantee
Volume = Thick Volumes
None = Thin Volumes
Can we move around between aggregates or add to an aggregate from another one directly to increase space?
Yes you can move non disruptively volumes across aggregates. If you want to spread a volume across aggregates then you need to create them as a FlexGroup (https://www.netapp.com/pdf.html?item=/media/7337-tr4557.pdf)
command to identify unwanted snapshots and volumes which are not mapped to any hosts.
you can list snapshots and their created dates using the command:
- set d -c off; snapshot show -fields create-time,size -sort-by create-time
you can check volume that are not mounted (not able to be accessible by any host) using the commmand
- vol show -junction-path -
Another idea would have be to look into the export-policy to check if hosts are still running
- vol show -field policy
- export-policy rule show -policy name_of_the_policy
HTH
David B