Memory Usage % Metric may show much higher than the guest OS utilization in vRealize Operations Manager 6.7 and later versions (55675) | VMware KB Language :

Memory Usage % Metric may show much higher than the guest OS utilization in vRealize Operations Manager 6.7 and later versions (55675)

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  • Memory|Usage % may show much higher than the guest OS utilization on some objects in vRealize Operations Manager 6.7. and later versions.
In most cases, this issue happens due to one or more of the following:
  • When a host is added to a vCenter, vCenter requests Virtual Machine guest metrics.  If no Virtual Machines have ever run on the host before the host is first added to vCenter, no guest metrics will be provided to the host and the host does not automatically request guest metrics if Virtual Machines are added later.
  • The vCenter adapter credentials used to collect from the target vCenter does not have required privileges to change stat level mappings.  If the guest stats are not available in the correct vCenter stat level, vRealize Operations Manager will not collect them.
The guest memory values can cause Capacity Calculations to be inaccurate for the Memory container.
Complete all of the following.  If one set of steps resolves the issue, you may skip the other remaining steps.

Windows OS Guests

For Virtual Machines with a Windows OS, ensure they are running guest VMware Tools version 10.3.2 (10338) or later.
Note: The vCenter VM summary page will show the Guest Tools version if you click More info.


VMware vSphere Adapter Credentials
  1. Ensure the vRealize Operations Manager VMware vSphere adapter credentials have the Performance > Modify intervals privilege enabled in the target vCenter(s).  See Minimum Collection User Permissions in vRealize Operations Manager 6.x and later for more information.
Note: The adapter credentials used can be reviewed or modified in vRealize Operations Manager by clicking Configure on the VMware vSphere solutions under Administration > Solutions.
  1. Log into the vRealize Operations Manager UI as an administrator.
  2. Navigate to Administration > Solutions.
  3. Select VMware vSphere.
  4. Under Configured Adapter Instances, select an adapter instance and click Stop Collecting.
  5. Once the adapter instance has stopped, click Start Collecting.
  6. Repeat steps 5 and 6 on all other desired adapter instances.


Disconnect and reconnect the parent hosts from vCenter

  1. Log into the vCenter Server UI as an Administrator.
  2. Ensure the parent hosts have had a Virtual Machine placed on them.
  3. Under Navigator, select the desired host and right-click it.
  4. Select Connection > Disconnect, and click Yes at the prompt.
  5. Once the host has been disconnected, right-click the same host under Navigator.
  6. Select Connection > Connect, and click Yes at the prompt.
  7. Repeat steps 1-6 for all other needed hosts.
Virtual machine guest metrics will start collecting in vRealize Operations Manager within a few collection cycles.
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For more information see Missing or Stopped Virtual Machine Guest Metrics in vRealize Operations Manager 6.x or later.
See Minimum Collection User Permissions in vRealize Operations Manager 6.x and later for more information about the required Collection user permissions.
See the vRealize Operations Manager 6.7 Release Notes Known Issues section for minimum required product versions needed to expose guest metrics.
See https://packages.vmware.com/tools/versions for VMware Guest Tools version details.
 
3/15/2019 6:52 PM
GSS_Cloud Management
Troubleshooting
General Availability