FlexClone files and FlexClone LUNs share the same physical data blocks with their parent files and LUNs present in FlexVol or FlexClone volumes, and occupy negligible space in the form of metadata.
You can create a clone of a file that is present in a FlexVol volume in a NAS environment, and you can also clone a LUN in a SAN environment.
The cloned copies are highly space-efficient and time-efficient because the cloning operation does not copy physical blocks of data. When you write new data to a parent or clone, then the entity on which new data is written starts occupying extra storage space.
The following illustration shows the parent files or LUNs and FlexClone files or LUNs accessing the same data blocks on the
On the host side, the parent files or LUNs and FlexClone files or LUNs appear as normal files and LUNs:
The cloning operation is instantaneous and has no impact on client access to the parent file or LUN. Clients that are accessing the parent file or LUN do not experience any disruption or outage. Clients can perform all operations on FlexClone files and FlexClone LUNs as they can on standard files and LUNs.