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Name

nfsd - NFS daemon

Synopsis

/usr/lib/nfs/nfsd [ -a ] [ -c #_conn ] [ -p protocol ] [ -t device ] [ nservers ]

Availability

SUNWcsu

Description

nfsd is the daemon that handles client file system requests. Only the super-user can run this daemon.

The nfsd daemon is automatically invoked in run level 3 with the -a option.

By default nfsd will start over the tcp and udp transports.

A previously invoked nfsd daemon started with or without options must be stopped before invoking another nfsd command.

Options

The following options are supported:

-a
Start a NFS daemon over all available connectionless and connection-oriented transports, including udp and tcp.
-c #_conn
This sets the maximum number of connections allowed to the NFS server over connection-oriented transports. By default, the number of connections is unlimited.
-p protocol
Start a NFS daemon over the specified protocol.
-t device
Start a NFS daemon for the transport specified by the given device.

Operands

The following operands are supported:

nservers
This sets the maximum number of concurrent NFS requests that the server can handle. This concurrency is achieved by up to nservers threads created as needed in the kernel. nservers should be based on the load expected on this server. 16 is the usual number of nservers. If nservers is not specified, the maximum number of concurrent NFS requests will default to 1.

Usage

If the NFS_PORTMON variable is set, then clients are required to use privileged ports (ports < IPPORT_RESERVED ) in order to get NFS services. This variable is equal to zero by default. This variable has been moved from the "nfs" module to the "nfssrv" module. To set the variable, edit the /etc/system file and add this entry:

set nfssrv:nfs_portmon = 1

Exit Status

  1. Daemon started successfully.
  2. Daemon failed to start.

Files

.nfsXXX
client machine pointer to an open-but-unlinked file
/etc/init.d/nfs.server
shell script for starting nfsd
/etc/system
system configuration information file

See Also

ps(1) , mountd(1M) , sharetab(4) , system(4)

Notes

    .
  1. The NFS service uses kernel threads to process all of the NFS requests. Currently, system utilization associated with these threads is not charged to the nfsd process. Therefore, ps(1) can report 0 cpu time associated with the NFS daemon, even though NFS processing is taking place on the server.
    2. .
  2. Manually starting and restarting nfsd is not recommended. If it is necessary to do so, use the NFS server start/stop script (/etc/init.d/nfs.server). See for more information.

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