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CNPGClusterLowDiskSpaceWarning
Severity warning
Fires when More than 70% of a database volume is used, for 5 minutes

What it means

More than 70% of the storage of a database volume is used. The alert watches the data volume of each database instance, and the volumes for write-ahead log (WAL) files and tablespaces if the instance has them.

This is an early warning. The database works normally.

What happens if you do nothing

If the data keeps growing, CNPGClusterLowDiskSpaceCritical fires at 90%. When the volume is full, PostgreSQL stops.

What to do

  1. Check the storage usage. Open the Technical Details on the instance detail page. The Usage column in the Persistent Volumes table shows how much space is used. See Monitor an Instance.
  2. Find out what uses the space, and remove the data you do not need. See Free up storage.
  3. If you need the data, plan to increase the storage size. See Increase the storage size.