Abstract: The present disclosure relates to a method, a device and a computer program product for backup management. An initial set of data items associated with a plurality of historical data backup operations are obtained, a data item in the initial set of data items indicates a data amount and time consumption associated with a corresponding historical data backup operation. A degree of change in time consumption per unit data amount of a candidate data item in the initial set of data items is determined and the candidate data item from the initial set of data items is removed based on the degree of change to generate a reference set of data items, which is stored for predicting time consumption of a future data backup operation.

Abstract: Embodiments of the present disclosure generally relate to the field of computers, and more specifically, to a method, a device and a computer program product for backup management. The method comprising: obtaining an initial set of data items associated with a plurality of historical data backup operations, a data item in the initial set of data items indicating a data amount and time consumption associated with a corresponding historical data backup operation; determining a degree of change in time consumption per unit data amount of a candidate data item in the initial set of data items; removing the candidate data item from the initial set of data items based on the degree of change to generate a reference set of data items; and storing the reference set of data items for predicting time consumption of a future data backup operation. According to the solution, the number of reference data items required to predict time consumption of data backup may be reduced, thereby improving the storage efficiency.