nfsstat(8) - phpMan

nfsstat(8) System Manager's Manual nfsstat(8)

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
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 hits and 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 file
Instead of printing current statistics, nfsstat imports statistics 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 nfsstat 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 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.