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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | DISPLAY | FILES | SEE ALSO | BUGS | AUTHOR | COLOPHON |
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nfsstat(8) System Manager's Manual nfsstat(8)
nfsstat - list NFS statistics
nfsstat [OPTION]...
The nfsstat displays statistics kept about NFS client and server
activity.
-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.
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 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.
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.
The Flags output from the -m option is the same as the flags give
to the mount command.
/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.
rpc.nfsd(8). nfs(5).
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 option.
The Display section should be more complete.
Further bugs can be found or reported at http://nfs.sf.net/ .
Olaf Kirch, <okir@suse.de>
This page is part of the nfs-utils (NFS utilities) project.
Information about the project can be found at
⟨http://linux-nfs.org/wiki/index.php/Main_Page⟩. If you have a
bug report for this manual page, see
⟨http://linux-nfs.org/wiki/index.php/Main_Page⟩. This page was
obtained from the project's upstream Git repository
⟨git://git.linux-nfs.org/projects/steved/nfs-utils.git⟩ on
2024-06-14. (At that time, the date of the most recent commit
that was found in the repository was 2024-05-10.) If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
information in this COLOPHON (which is not part of the original
manual page), send a mail to man-pages@man7.org
7 Aug 2007 nfsstat(8)
Pages that refer to this page: nfsd(7), mountstats(8), nfsd(8), nfsiostat(8)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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