<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns:p="urn:schemas-microsoft-com:office:powerpoint" xmlns:oa="urn:schemas-microsoft-com:office:activation" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"> <meta name="Generator" content="Microsoft Word 12 (filtered medium)"> <style>  </style> </head> <body lang="EN-GB" link="blue" vlink="purple"> <div class="Section1"> One thing that I’ve found handy is to check for the presence of the “VMWare balloon driver”; if it’s loaded, then the host that the VM’s running on is looking for resources and using this to reclaim memory from its guests. You can, of course, just install NRPE/NSClient/whatver on the VM and monitor it that way as well. It depends on how your resource allocation is done, but I have seen VM’s reporting 90% CPU utilisation while their host blade insists that everything’s fine.<o:p></o:p> <o:p> </o:p> Ta,<o:p></o:p> IR.<o:p></o:p> <o:p> </o:p> <div> *******************<o:p></o:p> Ian Rarity<o:p></o:p> Technical Engineer<o:p></o:p> ESPC (UK) Ltd.<o:p></o:p> T: (44)131 624 8000<o:p></o:p> F: (44)131 624 8509<o:p></o:p> <a href="http://www.espc.com">http://www.espc.com</a><o:p></o:p> </div> <o:p> </o:p> <div style="border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt"> <div> <div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"> From: Steffen Poulsen [mailto:sp@tdchosting.dk] Sent: 31 March 2009 11:02 To: Nagios Plugin Help List Subject: [Nagiosplug-help] Plugin for measuring ressource starvation (I/O and CPU) in a virtual machine<o:p></o:p> </div> </div> <o:p> </o:p> Hi all,<o:p></o:p> <o:p></o:p> I was wondering if perhaps a plugin is available to measure the performance of a virtual machine, from “the inside”?<o:p></o:p> <o:p></o:p> Typically you will have users complaining that the I/O performance is not what it was “yesterday” or that their machine is/was in other regards not behaving as expected.<o:p></o:p> <o:p></o:p> Most of this can and should of course be measured from “the outside”, through esx3 plugins of various sorts - but still the end-user experience can be challenging to measure in a trustworthy way using these tools.<o:p></o:p> <o:p></o:p> Did anybody by any chance do something in this direction already?<o:p></o:p> <o:p></o:p> Best regards,<o:p></o:p> Steffen Poulsen<o:p></o:p> <o:p></o:p> <o:p> </o:p> Click <a href="https://www.mailcontrol.com/sr/M97cISdTyfTTndxI!oX7UkccJfXxjPVWLCnHwRqyJ+xo!MMBolDjTVqPG14GtRQ+rKDO02ElKhvn2TMNdeX8VA=="> here</a> to report this email as spam.<o:p></o:p> </div> </div> <hr> ******************************************************************* Private and Confidential: This e-mail transmission is strictly confidential and intended solely for the addressee. It may contain privileged and confidential information and if you are not the intended recipient, you must not copy, disclose, distribute or take any action in reliance on it. If you have received this e-mail in error, please delete it and notify our E-mail Systems Administrator on +44 (0) 131 624 8000. ESPC (UK) Ltd does not accept any liability for any harm that may be caused to the recipient's system or data by this message or any attachment. ESPC (UK) Ltd is a company registered under the Companies Acts in Scotland (Registered Number SC203585), and having its registered office at 90A George Street, Edinburgh, Midlothian EH2 3DF. ESPC (UK) Ltd is an Appointed Representative of Accord Consultancy which is authorised and regulated by the Financial Services Authority. </body> </html>