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This is for internal use by the PaaS team. Public-facing documentation is located at

Responding to Platform Alerting

Prometheus is configured to send alerts to teams mailing lists.

You can check and subscribe to these alerts in each corresponding mailing list page (Google Groups):

BOSHJobEphemeralDiskPredictWillFill Diego Cell Alert

This alert may not require any action as it evaluates changes over a 30 minute period and then extrapolates it over 4 hours.

Action is required if we receive a BOSHJobEphemeralDiskFull alert. You can resolve this alert by recreating the instance.

For diego cells, GrootFS is allowed to fill 88% of the disk while the rest is reserved for other jobs. Garbage collection occurs when a container is created so disk full alerts are likely to be triggered by other jobs on the cell.