Embodiments of the present disclosure relate to a method, an electronic device, and a computer program product for managing a storage system. A method for managing a storage system is provided. The method includes storing a data block to be backed up into a local storage device of the storage system; determining whether the data block includes periodically rewritten data based on historical operation information of the storage system, the historical operation information being associated with storage operations and removal operations by the storage system on historical data; and if it is determined that the data block does not include periodically rewritten data, storing the data block into a remote storage device of the storage system, and removing the data block from the local storage device. The embodiments of the present disclosure can prevent data from being rewritten to a local storage device for many times, thereby improving the performance of a storage system and prolonging the service life of the local storage device.