| 摘要 |
In a storage system, first and second controllers have respective first and second buffer and cache areas. The first controller stores write data in accordance with a write request in the first cache area without involving the first buffer area and to transfer the stored write data to the second cache area without involving the second buffer area. The first controller is configured to determine which of the first and second cache areas is to be used as a copy source and to be used as a copy destination depending on whether the storing of the first write data in the first cache area had been successful or on whether the transfer of the write data from the first cache area to the second controller had been successful, and by copying data from the copy source to the copy destination, recovers data in an area related to a transfer failure. |
