| 摘要 |
PURPOSE:To improve efficiency by additing only information showing the occurrence of a fault and the occurrence origin of the fault at the time of a move-in and a move-out, and performing a rereading and halting a processing at a point of time when a processor 7 is practically used with respect to the error processing system, in particular, of a swap system hierarchical storage device composed of a main storage device and a buffer storage device. CONSTITUTION:Each of storage devices 1 and 2 is provided with a fault notification means 3 and a fault storage means 4. The fault notification means 3 transmits information showing which storage hierarchy is as fault occurrence origin information with data to the request origin of data when an error is impossible to be corrected at the time of reading data. The fault storage means 4 stores the fault occurrence origin information notified from other storage 1 and 2, corresponding it every check unit of data at the time of writing data and deletes fault occurrence origin information if data has fault occurrence origin information. |
