NAME [Toc] [Back]
nfsstat - Network File System statistics
SYNOPSIS [Toc] [Back]
nfsstat [ -cmnrsz ]
DESCRIPTION [Toc] [Back]
nfsstat displays statistical information about the NFS (Network File
System) and RPC (Remote Procedure Call), interfaces to the kernel. It
can also be used to reinitialize this information. If no options are
given, the default is
That is, display everything, but reinitialize nothing.
OPTIONS [Toc] [Back]
-c Display client information. Only the client side NFS and RPC
information will be printed. Can be combined with the -n and -r
options to print client NFS or client RPC information only.
-m Display statistics for each NFS mounted file system. This
includes the server name and address, mount flags, current read
and write sizes, the retransmission count, and the timers used
for dynamic retransmission. The srtt value contains the smoothed
round trip time, the dev value contains the estimated deviation,
and the cur value is the current backed-off retransmission value.
-n Display NFS information. NFS information for both the client and
server side will be printed. Can be combined with the -c and -s
options to print client or server NFS information only.
-r Display RPC information.
-s Display server information.
-z Zero (reinitialize) statistics. This option is for use by the
super-user only, and can be combined with any of the above
options to zero particular sets of statistics after printing
DISPLAYS [Toc] [Back]
The server RPC display includes the following fields:
badcalls The total number of calls rejected by the RPC layer
(the sum of badlen and xdrcall as defined below).
badlen The number of RPC calls with a length shorter than a
minimum-sized RPC call.
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calls The total number of RPC calls received.
nullrecv The number of times an RPC call was not available
when it was thought to be received.
xdrcall The number of RPC calls whose header could not be
The server NFS display shows the number of NFS calls received (calls)
and rejected (badcalls), and the counts and percentages for the
various calls that were made.
The client RPC display includes the following fields:
badcalls The total number of calls rejected by the RPC layer.
badverfs The number of times the call failed due to a bad
verifier in the response.
badxid The number of times a reply from a server was
received which did not correspond to any outstanding
calls The total number of RPC calls made.
cantconn The number of times the call failed due to a failure
to make a connection to the server.
cantsend The number of times a client was unable to send an
RPC request over a connectionless transport when it
tried to do so.
interrupts The number of times the call was interrupted by a
signal before completing.
newcred The number of times authentication information had
to be refreshed.
nomem The number of times the call failed due to a failure
to allocate memory.
retrans The number of times a call had to be retransmitted
due to a timeout while waiting for a reply from the
timeout The number of times a call timed out while waiting
for a reply from the server.
timers The number of times the calculated time-out value
was greater than or equal to the minimum specified
time-out value for a call.
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wait The number of times a call had to wait because no
client handle was available.
The client NFS display shows the number of calls sent and rejected, as
well as the number of times a CLIENT handle was received (nclget), the
number of times a call had to sleep while awaiting a handle
(nclsleep), as well as a count of the various calls and their
AUTHOR [Toc] [Back]
nfsstat was developed by Sun Microsystems, Inc.
Hewlett-Packard Company - 3 - HP-UX 11i Version 2: August 2003 [ Back ]