1. A computer-implemented method, comprising: receiving diagnostic data associated with a storage system having one or more storage units to store data objects; forecasting, by a capacity forecaster, a full capacity date using predictive modeling based on the diagnostic data, wherein the full capacity date corresponds to a date on which the one or more storage units are predicted to reach a full storage capacity; generating, by a generator, an indication identifying a type of the one or more storage units of the storage system, wherein the indication is used to communicate regarding an increase in a storage capacity of the storage system before the full capacity date; updating the generator and the capacity forecaster based at least in part on an event that occurs in response to the indication; and using the updated generator to generate a subsequent indication based at least in part on a subsequent full capacity date that is determined using predictive modeling.