How I can relate lun clones (vol file clone) with there parent luns? Is a file clone automatically split? How I can see stats of luns?
I am working with the CINDER Netapp driver using its functionality to create snapshots and from then create a lun.
I guess under the covers is using "vol file clone" for both operations so, it must create a kind of clone that acts as snapshot for next clones, so: lun -> snapshot -> 1:n clones
My question is to understand how files clones work. After reading the documentation I understand that if I do a : df -s volname (page 92, Logical Storage Management Guide) I should see the savings due to cloning on luns, so if I am doing a file clone on a lun of 100GB I should see something like we saved 100GB, independently of space-reserved false|true. Is this assumption correct? In reality I dont see any saving. Is this meaning that the file clone is automatically split? I dont think.
I want to also understand how can I relate clones to their parent luns e.g.: