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Thursday 9 January 2014

Difference between NFS3 and NFS4

Here I have listed some major differences between NFS3 and NFS4.Security has been major improvement taken into account for developing NFS4 version.Version NFS 4.1 is in development stage includes pNFS mechanism.



NFSv3
NFSv4
Personality-Behavior
Stateless protocol
Stateful protocol
Semantics-support
Support UNIX only
Support UNIX and Windows
Authentication type
Weak -(AUTH_SYS)
Strong -(Kerberos)
Identification type
32-bit UID/GID
String based (xyz@blogspot.com)
Permissions type
UNIX based access
Windows like access
Transport protocol
UDP and TCP
TCP only
Caching data
Ad-hoc
Delegations

nfs4