1 Reply Latest reply on Feb 16, 2010 12:22 PM by Fodome

    VMWare Windows machines alerting oddly at RAM and Discspace issues

      I'm actually having a bit of a different problem... sort of:

      I'm running a virtualized environment and when the WMI probes go to get disc space and memory, it reads the actual allocated memory/disc that VMWare ESX has given the virtual machine rather than the 'total' that windows reports.  The case goes a little something like this:

      A windows 2008r2 machine, virtualized on ESX has 4 gb of ram and a 40 gb disc thin provisioned in VMWare.

      Every once in a while, the RAM alerts will send and I'll get intermittent disc space alarms for cases when there's less than 10% of disc space left when 20ish gb of data on the hard drive--but the os reads that there's19.5gb free...Clearly more than 10%--I can only surmise that it's an issue with the auto-grow threshold in VMWare being below 10%.

      Is there a tweak/patch that I need to apply so that IPMonitor reads these virtual machines' statistics differently?  Any help would be greatly appreciated.

        • Re: VMWare Windows machines alerting oddly at RAM and Discspace issues

          Hello patrickmcclory,

          I don't believe that ESX is part of the issue as ipMonitor will simply communicate directly with the Windows 2008 R2 system using WMI queries.  Having that said, I would be interested in knowing the numbers being reported by the Monitors when the issue occured.  In order to do so, here's what I need you to do:

          1. Open the settings page for the Drive Space Monitor which failed.
          2. Click the "View Report" button above.
          3. Once the report comes up, click the "Settings" button above.
          4. Only check the following boxes and uncheck everything else:
            • Free Drive Space
            • Free Drive Space (%)
            • Used Drive Space
            • Used Drive Space (%)
            • Drive Size
          5. Click "Apply"
          6. Now use the "Calendar" button to switch to the day the error occured.
          7. Now use the "Zoom" button to zoom into the hour the error occured.

          This should give you the values at 5 minute intervals.  If the Monitor is testing every 5 minutes, we'll see all values returned.  Do any of the values look off for Free Space, Used Space or Drive Size?

          Let me know,


          Chris Foley - SolarWinds - Support Specialist
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