Abstract: Management of a storage device is disclosed. A method for managing a storage device includes acquiring evaluation information for a candidate fitting model in candidate fitting models. The evaluation information indicates at least a historical fitting degree between the candidate fitting model and historical data. A model selection strategy is determined based on the evaluation information. The model selection strategy indicates at least a probability that the candidate fitting models is selected for fitting target data. The target data indicates a storage state of the storage device over a first time period. Further, based on the model selection strategy, a target fitting model is determined from the candidate fitting models for use in determining a storage state of the storage device over a second time period. In this manner, the fitting model suitable for actual business data can be determined more efficiently, and additional system overhead can be avoided.