oVirt monitoring with Grafana & advanced options
summary
oVirt ships a data warehouse that pulls engine metrics samples every minute, runs ETL with hourly and daily aggregations, and offers two retention modes: basic (samples 24h, hourly 1 month, no daily) or full (daily data for five years); Grafana connects directly to the DWH Postgres and provides about 18 pre-built dashboards in executive/trend/service-level/inventory folders, all editable by copying and changing the SQL, supporting variables and CSV export (export CSV). Installation is automatic except for self-hosted engine and full-scale DWH is recommended to move to a separate machine.
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