nfsstat(8nfs)															     nfsstat(8nfs)

Name
       nfsstat - display Network File System (NFS) statistics

Syntax
       /usr/etc/nfsstat [ -cnrsz ] [ vmunix.n ] [ core.n ]

Description
       The  command displays statistical information about the Network File System (NFS) and Remote Procedure Call (RPC) interfaces in the kernel.
       It can also be used to reinitialize this information.  If you do not specify any options,  displays  the  information  as  though  all  the
       options were specified, but

       The statistics are reinitialized to zero each time the system reboots.

Options
       -c	 Display  the client information.  The client side NFS and RPC information is displayed.  You can combine this option with the and
		 options to print client NFS or client RPC information only.

       -s	 Display the server information.  The server side NFS and RPC information is displayed.

       -n	 Display the NFS information.  The NFS information for both the client and server side is displayed.  You can combine this  option
		 with the and options to print client or server NFS information only.

       -r	 Display  the  RPC information.  The RPC information for both the client and server side is displayed.	You can combine the option
		 with the and options to print client or server RPC information only.

       -z	 Reinitialize the statistics to zero.  You can combine this option with any of the above options to reset particular sets of  sta-
		 tistics to zero after printing them.  You must have write permission on to use this option.

       core.n	 This is the core image, which is usually stored in the directory If no is specified, the default is

       vmunix.n  This is the kernel image, which is usually stored in the directory If no is specified, the default is

       Here is a sample of output with no options specified:
       # nfsstat

       Server rpc:
       calls	  badcalls   nullrecv	badlen	   xdrcall
       1312142	  0	     0		0	   0

       Server nfs:
       calls	  badcalls
       1312142	  0
       null	  getattr    setattr	root	   lookup     readlink	 read
       0  0%	  319612 24% 1220  0%	0  0%	   795544 60% 5857  0%	 163962 12%
       wrcache	  write      create	remove	   rename     link	 symlink
       0  0%	  7294	0%   165  0%	239  0%    75  0%     74  0%	 0  0%
       mkdir	  rmdir      readdir	fsstat
       0  0%	  0  0%      17612  1%	334  0%

       Client rpc:
       calls	  badcalls   retrans	badxid	   timeout    wait	 newcred
       30156	  40	     256	0	   296	      0 	 0

       Client nfs:
       calls	  badcalls   nclget	nclsleep
       30143	  40	     30156	0
       null	  getattr    setattr	root	   lookup     readlink	 read
       0  0%	  5833 19%   21  0%	0  0%	   17630 58%  420  1%	 3455 11%
       wrcache	  write      create	remove	   rename     link	 symlink
       0  0%	  475  1%    84  0%	10  0%	   4  0%      0  0%	 0  0%
       mkdir	  rmdir      readdir	fsstat
       2  0%	  0  0%      1423  4%	786  2%
       Of the client RPC statistics, each field is as follows:

       calls	 The total number of client RPC calls successfully begun.

       badcalls  The total number of unsuccessful (badly formed) RPC calls.

       retrans	 The number of times that RPC calls were transmitted.

       badxid	 The number of times a reply transaction ID did not match the request transaction ID.

       timeout	 The number of times a request was made but not answered.

       wait	 The number of times the client system had to sleep because the client structure was busy.

       newcred	 This field is never used, and is therefore always 0.

       Of the client NFS statistics, each field is as follows:

       calls	 The total number of client NFS calls successfully begun.

       badcalls  The total number of unsuccessful (badly formed) NFS calls.

       nclget	 The  number  of  times a client structure was successfully acquired.  The client structure is where clients keep track of an out-
		 standing RPC call.

       nclsleep  The number of times all client structures were busy.  Since there are six client structures, is the number of	times  that  there
		 were six operations in progress when a seventh one arrived and had to wait until one of the client structures was freed.

       Of the server RPC statistics, each field is as follows:

       calls	 The total number of RPC calls received by NFS daemons.

       badcalls  The number of badly formed RPC calls.

       nullrecv  The number of empty RPC calls.

       badlen	 The number  of RPC calls with too small of a body.

       xdrcall	 The number of RPC calls that failed to decode in XDR.

       Of the server NFS statistics, each field is as follows:

       calls	 The total number of NFS calls dispatched by an NFS daemon.

       badcalls  The number of badly formed NFS requests.

       The remaining fields provide counts of the completed NFS operations.  Here are their descriptions:

       null	  This is the number of null operations.  If the software is working properly, this field should be zero.

       getattr	  This is the number of file attributes that were retrieved.  In the example above, there were 319,612, or 24% on the server.

       setattr	  This is the number of file attributes that were stored.

       root	  This field is not used and should always be zero.

       lookup	  This is the number of times that a directory pathname was looked up.

       readlink   This is the number of times a symbolic link was read.

       read	  This is the number of times data was read from a file.

       wrcache	  This field is not used and should always be zero.

       write	  This is the number of times data was written to a file.

       create	  This is the number of times a new file was created.

       remove	  This is the number of times a file was removed.

       rename	  This is the number of times a file was renamed.

       link	  This is the number of times a hard link was created.

       symlink	  This is the number of times a symbolic link was created.

       mkdir	  This is the number of times a directory was created.

       rmdir	  This is the number of times a directory was removed.

       readdir	  This is the number of times a directory was read.

       fsstat	  This is the number of times that file system attributes and statistics were retrieved.

Files
       System namelist

       kernel memory

																     nfsstat(8nfs)