6.1.2 Data Collectors
vCenter Chargeback integration with vCloud Director is handled through data collectors:
Chargeback data collector
– C
onnects to vCenter Server to gather virtual machine metrics. Add all vCenter Servers imported into vCloud Director to Chargeback to see virtual machine-level details. Virtual machines are absent in the vCloud hierarchies until their respective vCenter Servers are registered with Chargeback.
vCloud data collector
– Connects to the vCloud Director database and monitors all VCD chargeback-
related events. The vCloud data collector populates the Chargeback database with vCloud hierarchies and allocation unit information.
Manager data collector
– C
onnects to vCloud-associated vCloud Networking and Security
Manager instances to collect network statistics for networks included in vCloud hierarchy.
Install additional vCloud Director or vCloud Networking and Security Manager data collectors on separate servers for increased availability. Multiple data collectors act in an active/passive manner. When one instance goes down, the other instance takes ownership and starts processing. A Chargeback environment may have multiple vCloud data collectors, but can only connect to one vCloud Director instance.