Chapter 1. NFS Version 4 overview 7
represented by the server. All implementations of NFS V4, including AIX 5.3,
must support these features to be compliant:
GSS-API (RFC2078) with Kerberos V5 mechanism
Identity mapping
Pseudo-file system model
1.5.2 Optional features
The RFC specification also defines optional features. The term optional is used
here, meaning that the RFC gives the vendor the option to implement the feature
or not. AIX 5.3 implements the following optional features:
NFS V4 Access Control Lists (ACL)
Delegation
Mapping of principals and file ownership attributes from one NFS V4 domain
into another
Data replication and migration
1.6 Planning and implementation considerations
Planning and implementing NFS V4 is more complex ...