nfsd

 

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NAME
      nfsd - NFS daemon
 

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


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 com-
      mand.
 


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.
 
      -l    Set connection queue length for the  NFS  TCP  over  a
            connection-oriented transport. The default value is 32
            entries.
 
      -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
      0     Daemon started successfully.
 
      1     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
 


ATTRIBUTES
      See attributes(5) for descriptions of the  following  attri-
      butes:
 
      ____________________________________________________________
     |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
     |_____________________________|_____________________________|
     | Availability                | SUNWcsu                     |
     |_____________________________|_____________________________|
 
 


SEE ALSO
      ps(1), mountd(1M), sharetab(4), system(4), attributes(5)
 
      System Administration Guide, Volume 3
 


NOTES
      1. The  NFS service uses kernel threads to  process  all  of
         the  NFS requests.  Currently, system utilization associ-
         ated with these threads is not charged to the  nfsd  pro-
         cess.  Therefore,  ps(1) can report 0 cpu time associated
         with the NFS daemon, even though NFS processing is taking
         place on the server.
 
      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  System
         Administration Guide, Volume 3 for more information.
 
 
 
 

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