To solve the staging problem for Vmware database based datasources.
You need to redefine the datasource using the new build in datasource for vmware called Hyp_Vmware_ESXi_Weekly or Hyp_Vmware_ESXi_Daily .
For the other custom datasources you may need to reinstall the integration kit to put back the missing xml files for this datasource in
C:\Program Files\CA\Capacity Command Center 2.9.4\ApacheTomcat\webapps\DM\WEB-INF\classes
If you still have the missing xml for Scom hyp_ms_scom_hyperv.xml and hyp_ms_scom_windows.xml you can also place them back in this directory .