摘要:
A backup method makes a backup of cache data to a nonvolatile memory by using a controller, the cache data being stored in the volatile memory. The backup method includes writing the cache data stored in the volatility memory in a selected area of the nonvolatile memory, generating party data by operating the parity operations between each of the predetermined parts of the cache data in the volatile memory, verifying whether an error found in the part of the cache data in the nonvolatile memory can be recovered by using the parity data, and rewriting the part of the cache data when the error found in the part of the cache data in the nonvolatile memory cannot be recovered by using the parity data in an area of the nonvolatile memory different from the selected area.
摘要:
A storage system includes a housing, a cooling unit cooling the interior of the housing, and a plurality of control units adapted to control the cooling unit. The control units each include a mount state acquisition unit acquiring a mount state of the control unit in the housing, an operation state acquisition unit acquiring an operation state of the cooling unit, and a determining unit determining a provisional main control unit, from among the plurality of control units, that is operable to control the entire cooling unit based on information acquired from the mount state acquisition unit and the operation state acquisition unit.
摘要:
In the ticket processing system 1, a ticket buyer operate a terminal apparatus 11 to accesses a server 15 and downloads ticket data (electronic ticket). And, in an event meeting place, a ticket image is displayed on a screen of the terminal apparatus 11, and entrance processing is performed by electronic update processing on the screen. Electric thicket is used on the screen, and the information of using the electric thicket is transmitted to the server 15 when the terminal apparatus 11 becomes to be able to communicate with the server 15.