ONCplus B.11.31.03 Release Notes

ONC consists of the following components:
• Network File System
The Network File System (NFS) is a distributed filesystem that provides transparent access
to files and directories that are shared on remote systems.
• AutoFS
AutoFS is a client-side service that enables automatic mounting and unmounting of
filesystems.
• CacheFS
The Cache Filesystem (CacheFS) is a general purpose filesystem caching mechanism that
improves the performance of client side applications when working with NFS servers.
CacheFS client performance is improved by caching data to a fast local file system instead
of going over the wire. Caching data results in reduced server and network load because
the clients have already cached a copy of the data and send fewer requests to the server.
• Network Information Service
Network Information Service (NIS), previously called “Yellow Pages,” is a distributed
database system that enables the maintenance of commonly used configuration information
on a master server and propagates the information to all the hosts in the network.
Related Information
For more information about ONCplus, see the following documents, available at:
http://docs.hp.com/en/netcom.html#NFS%20Services
• NFS Services Administrator’s Guide (Part Number: B1031-90064)
• NIS Administrator’s Guide (Part Number: 5992-2187)
• Managing NFS and KRPC Kernel Configurations in HP-UX 11i v3
• Introducing Network File Systems Version 4 on HP-UX 11iv3
What's New in ONCplus B.11.31.03
ONCplus B.11.31.03 includes both defect fixes and new features. This version of ONCplus
supports all features included in previous ONCplus versions. In addition, the following new
features are introduced in ONCplus B.11.31.03:
New NFS Features in ONCplus B.11.31.03
NFS introduces the following features for NFSv4:
• File Delegation with Local Access
NFSv4 clients support delegation on HP-UX 11iv3. However, until ONCplus B.11.31.03,
NFSv4 servers supported delegation with the caveat that no local file access should occur
on any delegated file. For example, if the server grants a delegation to the file “/a/b/foo”
then any local users on the server need to avoid accessing file “foo” while the delegation is
in effect. If both local and remote users modify the delegated file, then the data in “foo”
could become corrupted.
As of ONCplus B.11.31.03, when using the File Delegation, both local and remote file users
can modify the delegated file.
• Cross Mount Traversal
The NFSv4 protocol allows clients to seamlessly traverse the servers shared directories and
cross the physical file system boundaries on the server without having to explicitly mount
each shared file system independently. For example, if the server is sharing the two file
systems “/” and “/a/b” respectively, the client, after mounting the root file system of the
Related Information 9