Specifications

Chapter 3: Administration and setup
Period Default retention period
Latest values (raw data) 14 days (configurable)
Hourly rollup 90 days (configurable)
Daily rollup Indefinite
Weekly rollup Indefinite
Monthly rollup Indefinite
Yearly rollup Indefinite
Aggregation
Aggregation combines the performance data collected during the same time
across your virtual environment. To calculate overall performance and load
statistics for data stores, for example, Virtualization Manager collects partial data
from each individual host and VM which accesses the data store, and then
aggregates that data to get a complete picture of the load and performance of that
data store.
Raw data is aggregated by the collection job in real time. When there are
aggregate raw data points, they are stored, processed, indexed, and rolled up by
Virtualization Manager.
Infrastructure aging
If no data is collected against a piece of your virtual infrastructure after 24 hours,
that piece, or configuration item (CI), is considered "stale," and data relating to it is
grayed out. After 48 hours with no data collected, Virtualization Manager
considers that CI to be removed from your infrastructure and stops displaying
information about it. The data is not deleted from the database, and if the CI
reappears in your virtual environment, Virtualization Manager links the new
information to the information already gathered in the database.
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