NFS Services Administrator's Guide (B.11.31.03) August 2008

Mounting and Unmounting Directories
NFS clients can mount any filesystem or a part of a filesystem that is shared by the NFS
server. Filesystems can be mounted automatically when the system boots, from the
command line, or through the automounter. The different ways to mount a filesystem
are as follows:
• Mounting a filesystem at boot time and using the mount command
For information on how to mount a filesystem at boot time, see “Mounting a
Remote Directory on an NFS client” (page 51).
• Mounting a filesystem using an NFS URL
For information on how to mount an NFS filesystem using an NFS URL, see
“Examples of NFS Mounts ” (page 53).
• Mounting an NFS filesystem through a firewall
For information on how to mount an NFS filesystem through a firewall, see
“Accessing Shared NFS Directories across a Firewall” (page 42).
• Mounting a filesystem securely
For information on how to mount a filesystem in a secure manner, see “An Example
for Securely Mounting a directory” (page 55).
For information on how to disable mount access for a single client, see “Unmounting
(Removing) a Mounted Directory” (page 56).
Starting with HP-UX 11i v3, the mount command is enhanced to provide benefits such
as performance improvement of large sequential data transfers and local locking for
faster access. The umount command allows forcible unmounting of filesystems. These
features can be accessed using specific options of the mount command. For more
information on these options, see mount_nfs (1M), and umount(1M).
NFS clients can also unmount the directories using the umount command. For
information on unmounting a shared directory, see “Unsharing (Removing) a Shared
Directory” (page 46).
Support for WebNFS
NFS is designed as a file access protocol for LANs. WebNFS is an extension of NFS. It
enables you to access files across the Internet easily. WebNFS is designed to handle
unique problems associated with accessing files across the Internet.
WebNFS enables filesystems at other locations on the Internet to appear to a user as a
local filesystem. WebNFS works through firewalls and implements features such as
read-ahead and write-behind, to improve throughput and performance over the Internet.
For more information on WebNFS, see “Sharing directories across a firewall using the
WebNFS Feature” (page 44).
New Features in NFS 21