NFSSTAT(1)						    BSD General Commands Manual 						NFSSTAT(1)

NAME

     nfsstat -- display NFS statistics

SYNOPSIS

     nfsstat [-cseuv] [-w wait] [-n net|user] [-m [mountpath]]

DESCRIPTION

     nfsstat displays statistics kept about NFS client and server activity, active user activity, exported directories, and mount information.	In
     the absence of any options, nfsstat displays NFS client and server statistics.

     The options are as follows:

     -c      Show NFS client statistics.

     -e      Show NFS server exported directory statistics.

     -m [mountpath]
	     Show NFS mount information.

     -s      Show NFS server statistics.

     -u      Show NFS server active user statistics.

     -w wait
	     Display a shorter summary at wait second intervals.

     -n net|user
	     Show network addresses as numbers, or show users as uid numbers.  This option can appear multiple times.

     -v      Show additional information (if available).

OUTPUT

     The data fields that nfsstat displays for each set of statistics are:

     Client Information:
	 Statistics for NFS file system mounts.

	 RPC Counts
	     Counts of the RPC calls made to each of the NFS protocol procedures.

	 RPC Info
	     Statistics for NFS RPC calls:

	     TimedOut
		  RPC calls that timed out, perhaps to a slow or dead server.

	     Invalid
		  Invalid RPC replies.

	     X Replies
		  RPC replies received that did not have calls pending.

	     Retries
		  RPC calls that were retried.

	     Requests
		  Total number of RPC calls made.

	 Cache Info
	     Statistics on NFS client-side cache performance:

	     Attr Hits/Misses
		  Performance of the NFS file attribute cache.

	     Lkup Hits/Misses
		  Performance of the directory name lookup cache.

	     BioR Hits/Misses
		  Performance of block cache for reads.

	     BioW Hits/Misses
		  Performance of block cache for writes.

	     BioRL Hits/Misses
		  Performance of symbolic link cache.

	     BioD Hits/Misses
		  Performance of directory cache.

	     DirE Hits/Misses
		  Performance of directory offset cache.

     Server Information:
	 Statistics for the NFS server.

	 RPC Counts
	     Counts of RPC calls on each of the NFS server's procedures are recorded here.

	 Server Ret-Failed
	     RPC errors returned by the server.

	 Server Faults
	     Errors in the NFS server.

	 Server Cache Stats
	     Statistics from the NFS server's RPC duplicate request cache:

	     Inprog
		  Calls already in progress.

	     Idem
		  Cache hits for idempotent procedures.

	     Non-idem
		  Cache hits for non-idempotent procedures.

	     Misses
		  Cache Misses.

	 Server Write Gathering
	     These statistics describe the efficiency of the NFS server's write gathering feature.

	     WriteOps
		  Write operations to disk.

	     WriteRPC
		  Write operations received by the server.

	     Opsaved
		  Write operations that were gathered (WriteRPC - WriteOps)

     NFS Server Exported Directory Information:
	 Statistics for each exported directory on the NFS server.

	 NFS Requests
	      Count of NFS requests processed by an exported directory.

	 Bytes Read
	      Count of bytes read from an exported directory.

	 Bytes Written
	      Count of bytes written to an exported directory.

     NFS Server Active User Information:
	 List of active NFS users and statistics on the NFS server.

	 NFS Requests
	      Count of NFS requests received from an active user.

	 Bytes Read
	      Count of bytes read by an active user.

	 Bytes Written
	      Count of bytes written by an active user.

	 Idle
	      Amount of time an active user has been idle.

	 User
	      Name (or uid if -n user was given) of active user.

	 IP Address
	      Host name (or network address if -n net was given) of client machine.

     NFS Mount Information:
	 Information about the given NFS mount (or all NFS mounts).

	 The path mounted on and the server:/path that is mounted.

	 Mount arguments originally passed in to the mount.

	 Current mount parameter values and status information.

SEE ALSO

     netstat(1), iostat(8), mount_nfs(8), nfsd(8)

HISTORY

     The nfsstat command appears in 4.4BSD.

4.4BSD								 January 11, 2011							    4.4BSD