An operation is disclosed for handling storage pages in a database system. The database system may include a management component and a storage component. The storage component may include storage locations with different hierarchical levels. Each storage page of the storage pages may include a number of records. The operation may include copying a storage page from the storage component to a buffer pool controlled by the management component, monitoring which records of the storage page in the buffer pool are being accessed, and setting information indicating access for each record accessed. The operation may also include determining, based on the information indicating access, whether to split the storage page into at least two resulting storage pages. The operation may also include writing the at least two resulting storage pages to the storage component at storage locations, where the at least two resulting storage pages have different hierarchy levels.