I've attached an illustration of the hierarchy of the NetApp "storage fragmentation" which I made for the intern usage in my company. Now I want to know three things of which I am not really sure about:
On which position in the illustration can I put a qtree and what is the qtree for? I've read that its analog to a subdirectory in e.g. the Windows filesystem.
Is the position of the LUN properly? I've read the following about a LUN and the reason of its usage:
"Some applications need local storage, they just can't seem to write data into a NAS (think CIFS or NFS) share. Microsoft Exchange and SQL are this way. They require local hard drives. So the solution is a LUN."
What else can I do with LUNs?
3. On which position in the illustration can I put a VServer and what is the VServer for? I've read the following about VServers:
"VServers are needed to serve data in a cluster. At least one VServer is needed in a cluster to serve data to the clients. A VServer can be stretched over more than one aggregate."
Could you tell me some more about VServers? Why do I need them, why can't a Windows client just map a CIFS share to get data?
I hope you can throw light on these topics for me.