nfsstat


SYNOPSIS
       nfsstat [OPTION]...

DESCRIPTION
       The nfsstat displays statistics kept about NFS client and server activ-
       ity.

OPTIONS
       -s, --server
              Print only server-side statistics. The default is to print  both
              server and client statistics.

       -c, --client
              Print only client-side statistics.

       -n, --nfs
              Print  only NFS statistics. The default is to print both NFS and
              RPC information.

       -2     Print only NFS v2 statistics.  The  default  is  to  only  print
              information about the versions of NFS that have non-zero counts.

       -3     Print  only  NFS  v3  statistics.  The  default is to only print
              information about the versions of NFS that have non-zero counts.

       -4     Print only NFS v4 statistics.  The  default  is  to  only  print
              information about the versions of NFS that have non-zero counts.

       -m, --mounts
              Print information about each of the mounted NFS file systems.

              If this option is used, all other options are ignored.

       -r, --rpc
              Print only RPC statistics.

       -o facility
              Display statistics for the specified facility, which must be one
              of:

              nfs    NFS protocol information, split up by RPC call.

              rpc    General RPC information.

              net    Network layer statistics, such as the number of  received
                     packets, number of TCP connections, etc.

              fh     Usage  information  on  the  server's  file handle cache,
                     including the total number of lookups, and the number  of
                     hits and misses.

              rc     Usage  information  on  the server's request reply cache,
                     including the total number of lookups, and the number  of

              tics from file and displays the difference between those and the
              current  statistics.   Valid  input  files may be in the form of
              /proc/net/rpc/nfs (raw client  stats),  /proc/net/rpc/nfsd  (raw
              server  stats),  or  saved  output  from  nfsstat itself (client
              and/or server stats).   Any statistics missing from a saved nfs-
              stat output file are treated as zeroes.

       -Z[interval], --sleep=[interval]
              Instead  of printing current statistics and immediately exiting,
              nfsstat takes a snapshot of the current  statistics  and  pauses
              until it receives SIGINT (typically from Ctrl-C), at which point
              it takes another snapshot and displays  the  difference  between
              the  two.  If interval is specified, nfsstat will print the num-
              ber of NFS calls made since the previous report.  Stats will  be
              printed repeatedly every interval seconds.

EXAMPLES
       nfsstat -o all -234
              Show all information about all versions of NFS.

       nfsstat --verbose -234
              Same as above.

       nfsstat -o all
              Show all information about active versions of NFS.

       nfsstat --nfs --server -3
              Show statistics for NFS version 3 server.

       nfsstat -m
              Show information about mounted NFS filesystems.

DISPLAY
       The  Flags  output  from the -m option is the same as the flags give to
       the mount command.

FILES
       /proc/net/rpc/nfsd
              procfs-based interface to kernel NFS server statistics.

       /proc/net/rpc/nfs
              procfs-based interface to kernel NFS client statistics.

       /proc/mounts
              procfs-based interface to the mounted filesystems.

SEE ALSO
       rpc.nfsd(8).  nfs(5).

BUGS
       The default output has been changed.  To get the old default output you
       must run nfsstat --auto -2.

       The  function  of  the -v and -a options have changed. The -a option is
                                  7 Aug 2007                        nfsstat(8)
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