vnx nas and isilon nas

vnx nas

there is a datapool

Datamover and control server

we create a file system on control server
and assign the fs to a datapool
fs will get storage from data pool

and we create quotas under fs
at the quota level we define the actual usage limits

in isilon

we have multiple nodes
and we have only one core file system called /ifs

and all the storage available from all the nodes , mounted to /ifs

and from this , we will be creating share quotas and set usage limits