NFS4 ACL

NFS4 ACL is the ACL defined by the NFS version 4 protocol.

NFS4 ACL is platform-independent, so it can be supported by other vendors' clients or servers. NFS version 4 clients and servers are not required to support NFS4 ACL.

In an AIX® server, if an underlying physical file system instance supports NFS4 ACL, then the AIX NFS4 server supports NFS4 ACL for that file system instance. Most physical file systems types on AIX do not support NFS4 ACL. These file system types include but are not limited to CFS, UDF, JFS, and JFS2 with extended attribute version 1. All instances of JFS2 with extended attribute version 2 support NFS4 ACL.

NFS version 4 client file systems are able to read and write the NFS4 ACL if the exported NFS version 4 file system instance on the server supports NFS4 ACL.