Incorrect hardware status returned from vCenter 5 when collected through vSphere API

KB ID:
1654
Product:
Veeam Management Pack for Microsoft System Center;Veeam Smart Plug-in (SPI) for VMware
Version:
5.7
Published:
Last Modified:
2012-07-11

Challenge

When nworks uses "Refresh Hardware" calls, hardware status is not updated on vSphere 5

Cause

vSphere 5 does not update the hardware status data available through API - this can be verified in vSphere Managed Objects Browser, which shows an outdated status, while the host MOB will show the correct status. By default, this information is not updated in vCenter 5. The VI Client, however, has the valid data, since it uses CIM service for watching the sensor readings.

Solution

Solution available with nworks 5.7: ensure CIMXML is working properly. Refer to KB1568 for more detail.
 
Workaround provided by VMware:
 
To avoid the discrepancy between VC MOB and ESX MOB, you have to configure "throttleinterval" (in seconds) in \etc\vmware\vpxa\vpxa.cfg file (found on the host) as below:
 
<config>
....
<vpxa> 
.... 
....     
<healthSystem>          
<throttleInterval>1200</throttleInterval>
</healthSystem> 
</vpxa>
<workingDir>/var/log/vmware/vpx</workingDir>
 
Then run the below command to restart vpxa:
services.sh restart vpxa
 
No other services need to be restarted.

More Information

Applying the workaround causes significant amount of host syncs at idle time and affects VC scalability, so it is not recommended to configure very frequent updates.

Please be aware that we’re making changes which will restrict access to product updates for users without an active contract.

OK

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