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<DIV dir=ltr align=left><SPAN class=528463101-08102008><FONT face=Arial
color=#0000ff size=2>Thanks Steve,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=528463101-08102008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=528463101-08102008><FONT face=Arial
color=#0000ff size=2>You've been a great help. I appreciate
it.</FONT></SPAN></DIV>
<DIV> </DIV>
<DIV align=left>
<DIV align=left><FONT face=굴림 size=2>
<P class=MsoNormal align=left><B><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">Sincerely,
</SPAN></B></P>
<P class=MsoNormal><B><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'"><FONT
face="Times New Roman"></FONT></SPAN></B></P>
<H1><FONT size=2><FONT face="Times New Roman"><STRONG><SPAN lang=EN-US
style="COLOR: blue">Huh, Jin</SPAN></STRONG><SPAN lang=EN-US
style="COLOR: blue"></SPAN></FONT></FONT></H1>
<P class=MsoNormal><B><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'"></SPAN></B></P>
<P class=MsoNormal><EM><B><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Times New Roman'">Network
Administrator</SPAN></B></EM><B><I><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Times New Roman'"><BR></SPAN></I></B><B><SPAN
lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'">Fuji Xerox
Korea Information Systems<BR>ISC (Information System Centre)<BR>Tel:
82-2-310-8620<BR><SPAN style="COLOR: blue"><A
title="blocked::mailto:jin.huh@kor.fujixerox.com blocked::mailto:jin.huh@kor.fujixerox.com mailto:jin.huh@kor.fujixerox.com"
href="mailto:jin.huh@kor.fujixerox.com">jin.huh@kor.fujixerox.com</A></SPAN></SPAN></B></P><B><SPAN
lang=EN-US style="FONT-SIZE: 10pt; FONT-FAMILY: 'Times New Roman'"><SPAN
style="COLOR: blue">
<P class=MsoNormal><B><SPAN lang=EN-US
style="FONT-SIZE: 7.5pt; COLOR: gray; FONT-FAMILY: Arial">This e-mail may
contain confidential and privileged material for the sole use of the intended
recipient. Any review, use, distribution or disclosure by others is strictly
prohibited. If you are not the intended recipient (or authorized to receive for
the recipient), please contact the sender by reply e-mail and delete all copies
of this message.</SPAN></B></SPAN></SPAN></B></FONT></P></DIV></DIV>
<DIV> </DIV><BR>
<DIV class=OutlookMessageHeader lang=ko dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Steve Shipway
[mailto:s.shipway@auckland.ac.nz] <BR><B>Sent:</B> Wednesday, October 08, 2008
10:18 AM<BR><B>To:</B> Huh, Jin (FXKIS.KOR)<BR><B>Cc:</B>
'mrtg@lists.oetiker.ch'<BR><B>Subject:</B> RE: Hardware requirement for
MRTG<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">This is discussed in
more detail in the MRTG book here <A
href="http://www.steveshipway.org/book">http://www.steveshipway.org/book</A>
(sorry for the advertising)<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Basically, it depends
on how many Targets you have, and whether or not you use external plugins or
just SNMP checks.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">So, if your 100
machines are being checks for 1 network card and 1 cpu stat, that would be 200
Targets, probably using SNMP only.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">The main bottleneck for
you will be Disk IO. You should get the fastest disks you can get as slow
disk IO slows down polling and means more threads are running, increasing memory
requirements.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">A 200-Target
installation is relatively small. We run about 14,000 Targets on our
dual-Xeon 3GHz linux server with 4GB RAM, with still some spare capacity.
You could certainly manage with a much smaller server. If running under
windows you have a slightly higher requirement but not
much.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Note that, for
performance, you should use MRTG with RRDtool and a frontend such as Routers2,
14all or mrtg-rrd. While you can run in native mode, performance is far
worse and you will find that you need a much larger server to cope with the
load, as in Native mode MRTG will recreate all the graph images every 5 minutes,
rather than only on demand. A native-mode MRTG may need 10 times as many
resources as an RRD-mode installation.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Hope this
helps,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Steve<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
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<DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN lang=EN-US
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN lang=EN-US
style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> mrtg-bounces@lists.oetiker.ch
[mailto:mrtg-bounces@lists.oetiker.ch] <B><SPAN style="FONT-WEIGHT: bold">On
Behalf Of </SPAN></B>Huh, Jin
(FXKIS.KOR)<BR><BR></SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Now we are trying to implement MRTG
server and monitor around 100 machines of network traffic usage and CPU
performance. (Servers and Network
devices)</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Please let me know appropreate
hardware requirement for MRTG server.</SPAN></FONT><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV></DIV></DIV></BODY></HTML>