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nfsd(8)
NAME
  nfsd - The remote NFS compatible server

SYNOPSIS
  /usr/sbin/nfsd [-t num_tcpthreads] [-u num_udpthreads]

  The following form of the nfsd command is not recommended and is supported
  only for backward compatibility:

  /usr/sbin/nfsd [numthreads]

FLAGS
  -t num_tcpthreads
      Specifies a number of TCP server threads to spawn.  A value of 8 is
      recommended as a start.

  -u num_udpthreads
      Specifies a number of UDP server threads to spawn.  A value of 8 is
      recommended as a start.

DESCRIPTION
  The nfsd daemon runs on a server machine to service NFS requests from
  client machines.  The daemon spawns a number of server threads that process
  NFS requests from client machines.  At least one server thread must be
  running for a machine to operate as a server.

  There are two types of server threads: a server thread that processes NFS
  requests sent using TCP and a server thread that processes NFS requests
  sent using UDP.  This is necessary because the kernel paths for UDP and TCP
  NFS messages are different.  The -t option specifies the number of TCP
  threads to run and the -u option specifies the number of UDP threads to
  run.	The optimal number of TCP server threads and UDP server threads
  depends on many factors. However, a user can have any number of TCP and UDP
  nfsd threads running up to a maximum of 128 threads.	If using the nfssetup
  script, the default is 8 UDP and 8 TCP threads.  See nfsiod(8) for more
  information.

  The server threads are implemented as kernel threads; they are part of
  Process ID 0, not the nfsd process.  The ps axml command displays idle
  server threads under PID 0.  Idle threads will be waiting on nfs_udp_wait
  or nfs_tcp_wait. Therefore, if 16 server threads are configured, only one
  nfsd process is displayed in the output from the ps command, although 16
  server threads are available to handle NFS requests.

  Files that are larger than 2 gigabytes are exported as 2 gigabyte files
  when accessed by NFS Version 2.  NFS Version 2 is a 32-bit protocol,
  therefore, the size and offset fields are 32-bit quantities (on Alpha UFS
  they are 64-bit quantities). Use caution when accessing files larger than 2
  gigabytes from NFS clients.

EXAMPLES
  In the following example, 16 threads are run (8 for TCP and 8 for UDP):


       nfsd -t 8 -u 8

FILES
  /usr/sbin/nfsd
	    Specifies the command path

  /var/adm/syslog/daemon.log
	    Specifies the file for logging startup errors (before the server
	    threads are started).

  /var/adm/syslog/kern.log
	    Specifies the file for logging NFS errors (after the server
	    threads are started).

RELATED INFORMATION
  Commands: mount(8), mountd(8), nfsconfig(8), nfssetup(8), nfsstat(8),
  portmap(8)

  System calls: nfssvc(2)

Index for Section 8

Alphabetical listing for N

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