# nfsstat(8) - man - phpMan

[nfsstat(8)](https://www.chedong.com/phpMan.php/man/nfsstat/8/markdown)                             System Manager's Manual                            [nfsstat(8)](https://www.chedong.com/phpMan.php/man/nfsstat/8/markdown)



## NAME
       nfsstat - list NFS statistics

## SYNOPSIS
       **nfsstat** [_OPTION_]...

## DESCRIPTION
       The **nfsstat** displays statistics kept about NFS client and server activity.

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

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

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

### -2
              sions of **NFS** that have non-zero counts.

### -3
              sions of **NFS** that have non-zero counts.

### -4
              sions 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
              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 num‐
                     ber of lookups, and the number of hits and misses.

              **io**     Usage information on the server's io statistics; bytes read and written.

              **ra**     Usage information on the server's read ahead  cache,  including  the  ra  cache
                     size, the depth of ra cache hits, and ra cache misses.

              **all**    Display all of the above facilities.

### -v, --verbose
              This is equivalent to **-o** **all**.

### -l, --list
              Print information in list form.

### -S, --since
              Instead  of printing current statistics, **nfsstat** imports statistics from _file_ and dis‐
              plays the difference between those and the current statistics.  Valid input _file_s  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  sta‐
              tistics missing from a saved **nfsstat** output _file_ are treated as zeroes.

### -Z[interval], --sleep=[interval]
              Instead  of printing current statistics and immediately exiting, **nfsstat** takes a snap‐
              shot 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 number 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)](https://www.chedong.com/phpMan.php/man/rpc.nfsd/8/markdown).  [**nfs**(5)](https://www.chedong.com/phpMan.php/man/nfs/5/markdown).

## 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 now reserved for  future
       use. The **-v** does what the **-a** option used to do, and the new **-[234]** options replace the **-v** op‐
       tion.

       The **Display** section should be more complete.

       Further bugs can be found or reported at **<http://nfs.sf.net/>**.

## AUTHOR
       Olaf Kirch, <<okir@suse.de>>



                                             7 Aug 2007                                   [nfsstat(8)](https://www.chedong.com/phpMan.php/man/nfsstat/8/markdown)