|
|
nfs_manual_setup(7)
Contents
|
nfs_manual_setup - Describes how to manually set up the
Network File System (NFS)
This reference page describes how to manually set up the
Network File System (NFS). Setting up NFS includes configuring
the following: Servers Clients, using /etc/fstab
Clients, using Automount or AutoFS
Use the following procedure to set up an NFS server: Create
the /etc/exports file and add the appropriate entries
to it.
The entries that you add are site-specific but
their syntax should be as follows:
pathname [-root=0] [-root=hostlist [-anon=uid]
[-rw=hostlist [-ro] identifier_1 ... identifier_n
You can use the number sign (#) as a delimiter to
add comments. For more information, see the
exports(4) reference page. Add the following
information to the /etc/rc.config.common file by
using the /usr/sbin/rcmgr command, which has the
following syntax:
/usr/sbin/rcmgr set variable value
Indicate that this system is a server, by entering
the following command:
# /usr/sbin/rcmgr set NFSSERVING 1
(A zero (0) in place of the 1 indicates that this
system is not a server.) Specify the number of
nfsd server threads you want to run on the system.
Separate symbols are used for UDP threads and TCP
threads. For example, to run 8 TCP threads and 4
UDP threads, enter the following commands:
# /usr/sbin/rcmgr set NUM_TCPD 8 # /usr/sbin/rcmgr
set NUM_UDPD 4
You can run up to 128 server threads for both
transports combined. Although 8 server threads for
each transport is usually adequate, if NFS client
performance is slow, a possible solution is to
increase the number of server threads. Set the
NONROOTMOUNTS parameter. Setting this parameter to
0 specifies that only root users on the client systems
can mount file systems. Setting it to 1 specifies
that anyone on the client systems can mount
file systems.
The following command specifies that users must be
running as root to mount file systems from the
server:
# /usr/sbin/rcmgr set NONROOTMOUNTS 0 Specify
whether you want to run the PC-NFS daemon. PC-NFS
software provides personal computers on your network
with the same capabilities as NFS. PC-NFS is
based on the client/server model. The client software
runs on the personal computer. The server
software runs on the Tru64 UNIX server. Instructions
for setting up the PC-NFS client software is
provided with the PC-NFS software documentation.
To specify that you want to run the PC-NFS daemon,
enter the following command:
# /usr/sbin/rcmgr set PCNFSD 1
You must then export the directories you want to
mount on the PC client to the client. Also, you
must export the /usr/spool/pcnfs directory to the
PC client for the client to be able to utilize network
printing. For information on exporting directories,
see the Network Administration: Services
manual. Specify whether you want to run the NFS
locking service to allow clients to set advisory
record locks on files exported to them.
To specify that you want to run the NFS locking
service, enter the following command:
# /usr/sbin/rcmgr set NFSLOCKING 1
Note, by default, 7 nfsiod daemons are run on all
NFS systems. To turn this client service off, enter
the following command:
# /usr/sbin/rcmgr set NUM_NFSIOD 0
The /usr/sbin/rcmgr command appends the information
to the end of the /etc/rc.config.common file. For
more information on the rcmgr utility, see the
rcmgr(8) reference page. Make sure that one of the
following is true for client systems to which you
are exporting file systems: They have an entry in
the /etc/hosts file of the server. Their host
information is in the hosts database, if the network
is serving host information with NIS or DNS.
The server specifies the client's Internet address
instead of its host name in its /etc/exports file
and the mountd daemon is not configured to run with
Internet address checking turned on. Start the NFS
daemons by entering the following command:
# /sbin/init.d/nfs start # /sbin/init.d/nfsmount
start
To stop the NFS daemons, enter the following command:
# /sbin/init.d/nfs stop
USING THE /ETC/FSTAB FILE TO SET UP CLIENTS
Use the following procedure to set up an NFS client, using
the /etc/fstab file: Edit the /etc/fstab file.
Unless you are using an automatic mounting service,
such as Automount or AutoFS, edit the /etc/fstab
file to contain an entry for each file system that
you want to mount on your system if you want it
mounted automatically. Specify the file system you
are mounting, the server you are mounting it from,
the permissions with which it is mounted, and the
local mount point for it. The syntax for entries
in the /etc/fstab file is as follows:
fs_spec@server fs_file fs_vfstype fs_mntopts
fs_freq fs_passno
For more information, see fstab(4).
The following is a sample /etc/fstab file:
/usr/dist@host1 /usr/dist nfs ro,bg 0 0
share/man@host2 /usr/share/man nfs ro,bg 0
/usr/staff/h0@host3 /nfs/host3/usr/staff/h rw,bg 0
/usr/staff/h1@host3 /nfs/host3/usr/staff/h1 nfs
rw,bg 0 0 Create a local mount point for each
remote file system that you specified in the
/etc/fstab file. The local mount points must correspond
exactly to the fs_file field in the
/etc/fstab file. In the preceding example, the
client system uses the /etc/fstab file to mount the
remote file system /usr/share/man from host2. The
/etc/fstab entry specifies that the local mount
point is also called /usr/share/man on the client
system. While this is the easiest way to name the
local mount point, it can have any name. To create
the /usr/share/man mount point, enter the following
command:
# mkdir /usr/share/man Make sure that one of the
following is true for server systems from which you
are importing file systems: They have an entry in
the /etc/hosts file of the client. Their host
information is in the hosts database, if the network
is serving host information with NIS or DNS.
Edit the /etc/rc.config.common file by using the
/usr/sbin/rcmgr utility. Add the following information
to the /etc/rc.config.common file: Whether
this system is an NFS server (a system can be both
a client and a server). The number of nfsiod daemons
that you want the system to run.
To specify that you want this system to run 7
nfsiod daemons, enter the following command:
# /usr/sbin/rcmgr set NUM_NFSIOD 7
You can run up to 64 nfsiod daemons. Although 7
nfsiod daemons is usually adequate, if NFS read and
write performance is slow, you can increase the
number of nfsiod daemons. Optionally, you can turn
on the NFS locking service, if you want to be able
to set advisory record locks on NFS-mounted files.
To do this, enter the following command:
# /usr/sbin/rcmgr set NFSLOCKING 1
Note that the NFS locking service must also be running
on the server.
The /usr/sbin/rcmgr command appends the information
to the end of the /etc/rc.config.common file. For
more information on the rcmgr utility, see
rcmgr(8). Start the NFS daemons by entering the
following command: # /sbin/init.d/nfs start #
/sbin/init.d/nfsmount start
Note
If you are using Automount or AutoFS on this system,
you should complete the steps in the Network
Administration: Services manual before starting the
NFS daemons.
If you need to stop the NFS daemons, enter the following
command:
# /sbin/init.d/nfs stop
ADMINISTERING AUTOMOUNT AND AUTOFS MAPS [Toc] [Back] You can customize Automount and AutoFS maps to suit your
environment and either administer them locally, distribute
them using NIS, or both.
For information on creating and administering Automount
and AutoFS maps, see the Network Administration: Services
manual.
Commands: autofsd(8), automount(8), mountd(8), nfsconfig(8), nfsd(8), nfsiod(8), rpc.lockd(8), rpc.statd(8)
Files: advfs(4), cdfs(4), fstab(4)
Network Information: nfs_intro(4)
Network Administration: Services, Technical Overview
nfs_manual_setup(7)
[ Back ] |
