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|
#!@@PERL@@ -w
#
# $Log$
# Revision 1.4 2004/12/10 18:51:43 jimmyo
# linux/apt* has been forced to LANG=C, to get predictable output.
#
# Revision 1.3 2004/12/10 10:47:49 jimmyo
# Change name from ${scale} to ${graph_period}, to be more consistent.
#
# Revision 1.2 2004/12/09 22:12:55 jimmyo
# Added "graph_period" option, to make "graph_sums" usable.
#
# Revision 1.1 2004/01/02 18:50:00 jimmyo
# Renamed occurrances of lrrd -> munin
#
# Revision 1.1.1.1 2004/01/02 15:18:07 jimmyo
# Import of LRRD CVS tree after renaming to Munin
#
# Revision 1.2 2003/11/07 17:43:16 jimmyo
# Cleanups and log entries
#
#
#
# Plugin for watching io-bound traffic (in KiloBytes) on disks.
#
# DESCRIPTION
# ===========
# This version of iostat will report back the amount of I/O on a per
# disk basis. It includes the vpaths in it's report. The I/O for a
# vpath is the sum of the reads/writes of all the hdisks assosciated
# with it. It uses /usr/bin/iostat.
#
# RESTRICTIONS
# ============
# Not restricted to a particular user. You will have to enable disk accounting for this to
# work correctly. You can do this through 'smitty chgsys -> Continuously maintain DISK I/O history',
# change this to true, or you can do it at the command line with this command
# "chdev -l sys0 -a iostat='true'".
#
# Note: If you have virtual paths, typical when gigabit fiber cards
# are installed and attached to an ESS (Shark) or some sort of
# large disk array, this will combine the I/O for all hdisks
# associated with a vpath so you get global statistics for a
# vpath. This is to avoid having a list of hdisks that spans
# multiple pages.
#
# Usage: Link or copy into /etc/munin/node.d/
#
# Parameters:
#
# config (required)
# autoconf (optional - used by munin-config)
#
# Magic markers (optional - used by munin-config and some installation
# scripts):
#
#%# family=contrib
#%# capabilities=autoconf
use strict;
use POSIX;
my($arg) = shift;
if($arg && $arg eq "autoconf")
{
if((-e "/usr/bin/iostat" && -X "/usr/bin/iostat") && (-e '/usr/sbin/lspv' && -X '/usr/sbin/lspv'))
{
print "yes\n";
exit 0;
}
else
{
print "no\n";
exit 1;
}
}
if($arg && $arg eq "config")
{
print "graph_title IOstat\n";
print "graph_args --base 1024 -l 0\n";
print "graph_vlabel KB / \${graph_period}\n";
my(@info) = getDiskIO("disk only");
my($line);
foreach $line (@info)
{
print "$line.label $line\n";
print "$line.type COUNTER\n";
print "$line.max 100000\n";
}
exit 0;
}
my(@info) = getDiskIO('');
my($line);
foreach $line (@info)
{print "$line";}
@info = processVPaths();
foreach $line (@info)
{print "$line";}
sub getDiskIO
{
my($diskOnly) = @_;
my($line,@lineArray,@diskArray,$writes,$reads,$diskLine);
if($diskOnly && $diskOnly eq 'disk only')
{
open DISKLIST, "/usr/sbin/lspv|egrep 'hdisk|vpath'|grep -v none|";
while($line = <DISKLIST>)
{
@lineArray = split(/ +/,$line);
push(@diskArray,"$lineArray[0]_read","$lineArray[0]_write");
}
}
else
{
open DISKLIST, "/usr/sbin/lspv|grep hdisk|grep -v none|";
while($line = <DISKLIST>)
{
@lineArray = split(/ +/,$line);
$diskLine = `/usr/bin/iostat|grep $lineArray[0]`;
@lineArray = split(/ +/,$diskLine);
$writes = $lineArray[5];
chomp($writes);
$reads = $lineArray[4];
chomp($reads);
push(@diskArray,"$lineArray[0]_read.value $reads\n","$lineArray[0]_write.value $writes\n");
}
}
return @diskArray
}
sub processVPaths
{
open DISKLIST, "/usr/sbin/lspv|grep vpath|";
my($line,$hdiskLine,@diskArray,$reads,$writes);
while($line = <DISKLIST>)
{
my(@vpathArr) = split(/ +/,$line);
my($vpathNum) = substr($vpathArr[0],index($vpathArr[0],"h")+1);
open VPATHINFO, "/usr/bin/datapath query device $vpathNum|grep hdisk|";
$reads = 0;
$writes = 0;
while($hdiskLine = <VPATHINFO>)
{
my(@hdiskInfo) = split(/ +/,$hdiskLine);
my($hdisk) = substr($hdiskInfo[2],index($hdiskInfo[2],"/")+1);
my($diskLine) = `/usr/bin/iostat|grep $hdisk`;
my(@lineArray) = split(/ +/,$diskLine);
$reads += $lineArray[4];
$writes += $lineArray[5];
}
push(@diskArray,$vpathArr[0]."_read.value $reads\n",$vpathArr[0]."_write.value $writes\n");
}
return @diskArray;
}
sub printArray
{
my($array,$spacer,$useNums,@labels) = @_;
my($item,);
my($count) = 0;
foreach $item (@{$array})
{
if($useNums == 1)
{print $count.substr($spacer,0,length($spacer)-length($count)).$item."\n";}
else
{print $labels[$count].substr($spacer,0,length($spacer)-length($labels[$count])).$item."\n";}
$count++;
}
}
|
