General considerations
Data into vCenterVMware collect data at RAW resolution (20 seconds) from Virtual Machines and Virtual Hosts.These metrics have a very short retention on vCenter (1 hours) There are not RAW data available at cluster level. VMware has internal rollup jobs that:
Data collected by CO ETL modulesvCenter Extractor Service moduleVersion 9.0, 9.5. 10.0
Version 10.3 and newer
vCenter History Extractor ModuleFor all the entity (VMs, hosts and cluster), the ETL get the data aggregate by the VMware rollup jobs |