[mrtg] Re: Help - Sun Ultra 5
Anup Sharma
asharma at ceiss.org
Fri Jan 25 18:12:46 MET 2002
Hi Glen
Thanks very much for letting me know about this. Please pardon me for saying
this, but I do not have "physical" or "telnet" access to the server,
meaning, I can't patch the conf files :(
Is there a "remote" way of doing this.. ? has anyone come up with this.. ?
anyone monitoring Sun Ultra 5 from a Windows Box ?
Any help would be most appreciable..
Thanks again
Anup Sharma
-----Original Message-----
From: Glenn Forbes Fleming Larratt [mailto:glratt at rice.edu]
Sent: Thursday, January 24, 2002 2:51 PM
To: Anup Sharma
Cc: 'mrtg at list.ee.ethz.ch'
Subject: Re: [mrtg] Help - Sun Ultra 5
I have found no such MIB / OID. However, my UNIX support folks helped me
come up with a method that allows me to do this sort of monitoring, at
least on a small scale, as follows (Done on Solaris 2.6-2.8 boxen with
tcp_wrappers, within a single LAN for security - your mileage may vary) :
1. Configure the target hosts as follows:
1a. Patch /etc/inetd.conf to include:
mrtgfeedcpu stream tcp nowait nobody /usr/sbin/tcpd
/usr/ucb/uptime
mrtgfeeddisk stream tcp nowait nobody /usr/sbin/tcpd /usr/bin/df
-k
1b. Patch /etc/services to include (pick arbitrary ports):
mrtgfeedcpu 31338/tcp
mrtgfeeddisk 31339/tcp
1c. Patch /etc/services to include (substitute your MRTG hosts):
uptime: MY.NET.MRTG.HOST1, MY.NET.MRTG.HOST2
df: MY.NET.MRTG.HOST1, MY.NET.MRTG.HOST2
1d. pskill -HUP inetd
1e. test by "telnet target 31338", e.g., from your MRTG host;
if it works, you should see the standard df or uptime output.
2. Install the following scripts on your MRTG hosts:
2a. inetdcpu:
================
#!/usr/local/bin/perl
# or wherever perl is on your MRTG host
if(($target = shift(@ARGV)) =~ /^(\S+):(\d+)$/
&& ($_ = join("",`/usr/ucb/telnet $1 $2 2>&1`))
&& (/load average:\s+([\d\.]+),\s/m))
{ printf "%d\n0\n0\n0\n",100*$1; }
else
{ printf "0\n0\n0\n0\n" ; }
================
2b. inetddisk:
================
#!/usr/local/bin/perl
# or wherever perl is on your MRTG host
$| = 1; # unbuffered output
$targetdir = "/tmp/.inetddisk";
$result = 0;
unless(-d $targetdir)
{ mkdir $targetdir,0755; } # target directory to cache "df -k" output;
# by caching, we only do "df -k" once, and
# reduce cycle and network utilization
if(($target = shift(@ARGV)) =~ /^(\S+):(\d+):(\S+)$/)
{
($host,$port,$partition) = ($1,$2,$3);
$targetfile = "$targetdir/$host:$port";
@stat = stat($targetfile);
if($stat[10] && (time - $stat[10]) < (3*60)) # use cached data if it's
# less than 3 minutes old
{ $_ = join("",`/usr/bin/cat $targetfile`); }
else # otherwise, repoll and
{ # repopulate the cache
$_ = join("",`/usr/ucb/telnet $1 $2 2>&1`);
open(OUT,">$targetfile");
print OUT;
close(OUT);
}
if(/(\d+)\%\s+$partition$/m)
{ $result = $1; }
}
printf "%d\n0\n0\n0\n",$result;
================
3. Finally, configure your an mrtg.cfg file thus:
================
WorkDir: {as appropriate}
IconDir: {as appropriate}
Refresh: 300
Options[_]: gauge, nopercent, growright
MaxBytes[_]: 100
AbsMax[_]: 100
WithPeak[_]: dwm
YLegend[_]: % CPU Busy
Legend1[_]: 5 Minute
Legend3[_]: Maximum 5 Minute
ShortLegend[_]: %
######################################################################
#---------------------------------------------------------------
Target[target_netserv_cpu]: `{fullpath}/inetdcpu target:31338`
Options[target_netserv_cpu]: gauge,noinfo,nopercent,growright
YLegend[target_netserv_cpu]: CPU Load
WithPeak[target_netserv_cpu]: dwmy
Unscaled[target_netserv_cpu]: dwmy
ShortLegend[target_netserv_cpu]: %
MaxBytes[target_netserv_cpu]: 100
AbsMax[target_netserv_cpu]: 1000
LegendI[target_netserv_cpu]: Load
LegendO[target_netserv_cpu]:
Title[target_netserv_cpu]: target.my.domain: CPU
PageTop[target_netserv_cpu]: <H1>CPU Load for target.my.domain, normalized
100% = 1.0
</H1>
#---------------------------------------------------------------
Target[target_disk_]: `{fullpath}/inetddisk target:31339:/`
Options[target_disk_]: gauge,noinfo,nopercent,growright
YLegend[target_disk_]: % capacity
WithPeak[target_disk_]: dwmy
Unscaled[target_disk_]: dwmy
ShortLegend[target_disk_]: %
MaxBytes[target_disk_]: 100
LegendI[target_disk_]: capacity
LegendO[target_disk_]:
Title[target_disk_]: target.my.domain: % capacity on /
PageTop[target_disk_]: <H1>% capacity on / for target.my.domain
</H1>
#---------------------------------------------------------------
Target[target_disk_usr]: `{fullpath}/inetddisk target:31339:/usr`
Options[target_disk_usr]: gauge,noinfo,nopercent,growright
YLegend[target_disk_usr]: % capacity
WithPeak[target_disk_usr]: dwmy
Unscaled[target_disk_usr]: dwmy
ShortLegend[target_disk_usr]: %
MaxBytes[target_disk_usr]: 100
LegendI[target_disk_usr]: capacity
LegendO[target_disk_usr]:
Title[target_disk_usr]: target.my.domain: % capacity on /usr
PageTop[target_disk_usr]: <H1>% capacity on /usr for target.my.domain
</H1>
================
-g
On Thu, 24 Jan 2002, Anup Sharma wrote:
> Hello everyone
>
> I have been successful in monitoring our WinNT/2000 (Compaq) servers, for
> traffic, cpu, diskusage etc. I use the getif and snmputil to query the
OIDs
> and do SNMP walks.
>
> It had all been working well, until I had to start tracking some Sun
Boxes.
> I am trying to monitor a Sun Ultra 5. I downloaded mibs from SUN, when I
> query things like .iso.org.dod.internet.mgmt.mib-2.ip , I get all the
> results. I am not able to figure the OIDs for Disk, CPU Usage for SUN.
>
> Can anyone please tell me, or point me to the right MIBs, or if possible
the
> OIDs, for Disk Usage, CPU Usage,
>
> TIA
> Anup Sharma
>
> --
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>
Glenn Forbes Fleming Larratt
Rice University Network Management
glratt at rice.edu
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