In one implementation, a first access behavior is determined. The first access behavior is for accessing a first dataset associated with a first tenant of a storage system, and the first dataset is stored in a first data node in the storage system. A second access behavior is determined. The second access behavior is for accessing a data entry that is to be added into a second dataset associated with a second tenant of the storage system, and the second dataset is stored in at least one data node in the storage system. In response to a deviation between the first access behavior and second access behavior being above a predefined threshold, the data entry is stored into the first data node.