NODESTAT(8) Domain/OS BSD NODESTAT(8)
NAME
nodestat - display network statistics
SYNOPSIS
/etc/nodestat [options]
DESCRIPTION
nodestat writes a summary of network and hard disk activity to standard
output.
OPTIONS
If no options are specified, nodestat returns a brief summary of network
usage information for the current node.
-l Long report-provides more information than the summary.
-config Configuration report-displays only node-specific hardware
information: CPU type, display type, etc.
-n node_spec ...
Provide information on specified node(s). Multiple
node_spec strings are permitted; separate them with
blanks.
-a Report on all nodes in the network.
-r [n] Repeat the nodestat command every n seconds until
interrupted. Only counts that have changed at each
iteration are displayed, and the values represent the
amount of change rather than absolute values. The default
value for n is 10 seconds.
-s [n] Send n test messages to every node being listed (except
the current node) before every repeat of the display. If
this option is specified, -r must also be specified. This
option provides a minimum amount of network activity
during the wait time between nodestat repeats. The
default value for n is 100 messages.
-save pathname Save all statistics in the file named pathname.
-since pathname
Display counts that have changed since statistics were
saved in pathname.
-nz Display statistics only for disks that have had IO
activity during the sample time. This option is most
useful when used with -r.
EXAMPLES
$ /etc/nodestat
The node ID of this node is 1FB.
**** Node 1FB **** //diskless_$0001Fb diskless to //anger
Up since 1988/02/01 at 8:17:06 Up for 1 day 2 hours 58 mins 4 secs
Net I/O: total= 94625 rcvs = 66912 xmits = 27713
Winchester I/O: total= 0 reads= 0 writes= 0 {NOTE 1}
System configured with 1.0 mb of memory.
$ /etc/nodestat -l
The node ID of this node is 1FB.
**** Node 1FB **** //diskless_$0001Fb diskless to //anger
Up since 1988/02/01 at 8:17:06 Up for 1 day 2 hours 58 mins 52 secs
Net I/O: total= 94756 rcvs = 67010 xmits = 27746
10436 page-in requests issued.
6473 page-out requests issued.
41134 page-in requests serviced.
12139 page-out requests serviced.
Detected concurrency violations -- read: 0 write: 0
Xmit count 27746 Rcv eor 0
NACKs 272 Rcv crc 767
WACKs 1639 Rcv timout 0
Token inserted 65 Rcv buserr 0
Xmit overrun 0 Rcv overrun 0
Xmit Ack par 3 Rcv xmit-err 3042
Xmit Bus error 0 Rcv Modem err 0
Xmit timout 90 Rcv Pkt error 45
Xmit Modem err 0 Rcv hdr chksum 0
Xmit Pkt error 377 Rcv Ack par 10
Delay switched OUT.
Winchester I/O: total= 0 reads= 0 writes= 0 {NOTE 1}
Not ready 0 Contrlr busy 0
Seek error 0 Equip check 0
Drive time out 0 Overrun 0
CRC error percentage: 0.00%
Last ring hardware failure detected by node 241 {NOTE 2}
on 1988/02/02 at 10:05
System configured with 1.0 mb of memory.
A total of 0 ECCC errors were detected.
Notes on Examples
1. Node 1FB is running diskless, hence the absence of Winchester disk
I/O activity.
2. At 10:05 A.M. on Feb. 2, 1988, the network cable was disturbed
immediately upstream of node 241. This information, coupled with
the network topology available from lcnode can help you pinpoint a
hardware malfunction.
SEE ALSO
rtstat(8)