Knowledgebase

06.11.2012 18:42 (comments: 0)

vCenter Operations Manager: vCenter Server Health shown as Red 0 with fault: "Make sure that the vCenter management web service is running, and use the vSphere Client to access the vCenter Service Status icon for more information."

If vCenter Operations Manager can not connect to the vCenter Server it might be related to the vCenter Webservices no longer working.

You should restart the vCenter Webservices and then wait at least 3-4 collection cycles (up to 1 hour) unless it will show up again in green.

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06.11.2012 18:41 (comments: 0)

vCenter Operations Manager: Health Score in vSphere UI & Custom UI difference

vCenter Operations Manager shows different results for Health Score in the vSphere UI & Custom UI.

In the vSphere UI the Health Score is calculated as a combination of Workload, Anomalies and Faults score.

For the Custom UI (Enterprise Edition and above) it is calculated based on Anomalies only.

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06.11.2012 18:40 (comments: 0)

vCenter Operations Manager: What is CCPD and ACPD Dynamic Threshold Scoring

Each algorithm will start with different assumptions of about cycles.

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17.10.2012 18:44 (comments: 0)

vCloud Director: Session timeout

In vCloud Director the session timeout is configurable thru the Administrator UI.

Open: System ->Administration -> General Settings -> Timeout..

change Idle Session Timeout value to large number (Keep in mind it needs to be below 3600 however).

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17.10.2012 18:43 (comments: 0)

vCenter Operations Manager: Difference Health score on world and vcenter object

It happens that the Health Score on different objects (i.e. World and VirtualCenter, or VirtualCenter and DataStore).

Why can this happen? Here is an answer from Kit Colbert/VMware:
"You should think of the World as not just being composed of the VCs directly underneath it, but indeed every object in the inventory (it is the World, after all... :).

The world's Workload is the total demand divided by the total capacity across all objects. The world's Anomalies are rolled up from all objects' Anomalies in the inventory. And the world's Faults are based on all non-VM objects' Faults."

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