<div dir="ltr">Hi<div><br></div><div style>You can do the conversion after scaling down (divide) the value by 1,000/1,000,000 or whatever value you want by, and adjust Y-axis unit label accordingly.</div><div style><br></div><div style>If you do have a TB drive I assume you don't (need to) care much about counting bytes..</div><div style><br></div><div style>Regards</div><div style><br></div><div style>Alvaro</div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature">|-----------------------------------------------------------------------------------------------------------------|<br>Envíe y Reciba Datos y mensajes de Texto (SMS) hacia y desde cualquier celular y Nextel<br>en el Perú, México y en mas de 180 paises. Use aplicaciones 2 vias via SMS y GPRS online<br> Visitenos en <a href="http://www.perusms.com">www.perusms.com</a> </div></div>
<br><div class="gmail_quote">On Wed, Nov 26, 2014 at 1:02 PM, Alex van den Bogaerdt <span dir="ltr"><<a href="mailto:alex@vandenbogaerdt.nl" target="_blank">alex@vandenbogaerdt.nl</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I guess Steve is still sleeping :)<br>
<br>
Hope you don't mind I chime in.<br>
<br>
First of all: there's a good chance your bash will suffer from the same problem.<br>
<br>
It has to do with signed integers. Adding one to <a href="tel:2147483647" value="+12147483647" target="_blank">2147483647</a> results in -<a href="tel:2147483648" value="+12147483648" target="_blank">2147483648</a>. The next number is -<a href="tel:2147483647" value="+12147483647" target="_blank">2147483647</a>, then -<a href="tel:2147483646" value="+12147483646" target="_blank">2147483646</a>, and so on.<br>
<br>
Steve suggested you look at the hexadecimal representation of those numbers. You will notice it is .... 0x7FFFFFFF, 0x80000000, 0x80000001 and so on.<br>
<br>
To convert the numbers to positive numbers, too large to fit in a 32-bit signed integer, just add 4294967296. Your shell may not be able to handle this, just try bc.<br>
<br>
<br>
----- Original Message ----- From: "Christian Arnaut" <<a href="mailto:n8tgc@msn.com" target="_blank">n8tgc@msn.com</a>><br>
To: "Steve Shipway" <<a href="mailto:s.shipway@auckland.ac.nz" target="_blank">s.shipway@auckland.ac.nz</a>><br>
Cc: <<a href="mailto:mrtg@lists.oetiker.ch" target="_blank">mrtg@lists.oetiker.ch</a>><br>
Sent: Wednesday, November 26, 2014 3:50 PM<br>
Subject: Re: [mrtg] SNMP Disk Space Negative Values<span class=""><br>
<br>
<br>
Steve,<br>
<br>
Pardon my ignorance. How were you able to convert the 'signed' integer of -268468737 to an unsigned value of <a href="tel:4026498559" value="+14026498559" target="_blank">4026498559</a>? If I can do that with a bash script, I'm halfway home!<br>
<br>
<br>
Thanks,<br>
~Christian<br>
<br>
<br></span><span class="">
From: <a href="mailto:s.shipway@auckland.ac.nz" target="_blank">s.shipway@auckland.ac.nz</a><br>
To: <a href="mailto:n8tgc@msn.com" target="_blank">n8tgc@msn.com</a><br>
CC: <a href="mailto:mrtg@lists.oetiker.ch" target="_blank">mrtg@lists.oetiker.ch</a><br>
Subject: RE: [mrtg] SNMP Disk Space Negative Values<br>
Date: Tue, 25 Nov 2014 22:46:58 +0000<br>
<br></span>
Your E: drive is insanely huge at 15TB. Possibly something is using signed integers when it should be using unsigned… The -268468737 value is a signed representation for the unsigned integer <a href="tel:4026498559" value="+14026498559" target="_blank">4026498559</a> (convert to hex and get 0xEFFF7DFF in both cases); multiply the unsigned value by the cluster size and you get your 15TB. Something is using an unsigned integer when it should be signed, or vice-versa. Steve Steve <a href="mailto:Shipways.shipway@auckland.ac.nz" target="_blank">Shipways.shipway@auckland.ac.<u></u>nz</a> From: mrtg [mailto:<a href="mailto:mrtg-bounces%2Bs.shipway" target="_blank">mrtg-bounces+s.shipway</a><u></u>=<a href="mailto:auckland.ac.nz@lists.oetiker.ch" target="_blank">auckland.ac.nz@lists.oetiker.<u></u>ch</a>] On Behalf Of Christian Arnaut<span class=""><br>
Sent: Wednesday, 26 November 2014 11:05 a.m.<br>
To: <a href="mailto:mrtg@lists.oetiker.ch" target="_blank">mrtg@lists.oetiker.ch</a><br>
Subject: [mrtg] SNMP Disk Space Negative Values Am attempting to use MRTG to monitor disk space on a Windows Server as I have done on multiple servers and workstations in the past. However, this time the local storage capacity on the local drive partition is nearly 15TB.<br>
<br>
It appears that I have exceeded an SNMP threshold where the integer values are now negative numbers. For example to monitor total space on the C: drive I used (simplified)... iso.3.6.1.2.1.25.2.3.1.4.2 * iso.3.6.1.2.1.25.2.3.1.6.2<br>
<br>
iso.3.6.1.2.1.25.2.3.1.3.2 = STRING: "C:\\ Label:"<br>
iso.3.6.1.2.1.25.2.3.1.3.4 = STRING: "E:\\ Label:"<br>
iso.3.6.1.2.1.25.2.3.1.4.2 = INTEGER: 4096<br>
iso.3.6.1.2.1.25.2.3.1.4.4 = INTEGER: 4096<br>
iso.3.6.1.2.1.25.2.3.1.5.2 = INTEGER: 10350335<br>
iso.3.6.1.2.1.25.2.3.1.5.4 = INTEGER: -268468737<br>
iso.3.6.1.2.1.25.2.3.1.6.2 = INTEGER: 6261795<br>
iso.3.6.1.2.1.25.2.3.1.6.4 = INTEGER: -527400222<br>
<br>
With the E: drive, iso.3.6.1.2.1.25.2.3.1.4.4 correctly shows the cluster size (4096). However, I am sure the total number of clusters isn't '-527400222'. Even if I used the absolute value of 527400222, the numbers don't add up to the 15TB partition size.<br>
<br>
Any suggestions? Or have I reached the limitation of MRTG for the purpose I am looking for?<br>
<br>
<br>
Thank you, in advance, for any assistance!<br>
<br>
~Christian<br>
<br>
<br></span>
------------------------------<u></u>------------------------------<u></u>--------------------<div class="HOEnZb"><div class="h5"><br>
<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
______________________________<u></u>_________________<br>
mrtg mailing list<br>
<a href="mailto:mrtg@lists.oetiker.ch" target="_blank">mrtg@lists.oetiker.ch</a><br>
<a href="https://lists.oetiker.ch/cgi-bin/listinfo/mrtg" target="_blank">https://lists.oetiker.ch/cgi-<u></u>bin/listinfo/mrtg</a><br>
<br>
</blockquote>
<br>
______________________________<u></u>_________________<br>
mrtg mailing list<br>
<a href="mailto:mrtg@lists.oetiker.ch" target="_blank">mrtg@lists.oetiker.ch</a><br>
<a href="https://lists.oetiker.ch/cgi-bin/listinfo/mrtg" target="_blank">https://lists.oetiker.ch/cgi-<u></u>bin/listinfo/mrtg</a><br>
</div></div></blockquote></div><br></div>