To flexibly change subframes of a backhaul link and an access link. Program code operating as a resource manager is used to enroll a node to receive updates to a switchable resource in the clustered computer system, and, in response to an update to the switchable resource, to notify each enrolled node of the update. In a data restoring operation, if an operation to read data from the flash memory is not completed within a predetermined period of time, the data reading operation is suspended, and additional data is set.