Abstract: A detection unit detects access status of an information recording device and forms the detected access status into access records at predetermined time intervals. A generation unit generates history information from the access records that have been formed over a predetermined period. A control unit selects an access record that has a predetermined relationship with the current time, out of the history information. A control unit determines when to start a diagnosis of the information recording device, assuming that the selected access record represents the current access status of the device. Specifically, the control unit instructs a diagnosis unit to start a diagnosis when the selected access record suggests that the diagnosis would not impose an excessive load on the information recording device.

Abstract: A test unit is provided for executing a confirmation test on the storage area of the storage apparatus. A storage area management unit sets an accessible valid storage area in the storage area, and extends the accessible valid storage area to include a part of the storage area. The part of the storage area used to extend the accessible valid storage is confirmed for normal operation by the test unit.

Abstract: A test unit is provided for executing a confirmation test on the storage area of the storage apparatus. A storage area management unit sets an accessible valid storage area in the storage area, and extends the accessible valid storage area to include a part of the storage area. The part of the storage area used to extend the accessible valid storage is confirmed for normal operation by the test unit.

Abstract: A test program execution control apparatus, in which an operation of testing is started according to controls by a test program execution control section, a period of editing data for test results to a test editing section is specified by an editing period input section, the data for test results within the editing period is edited by a test result editing section, an order of execution of testing for test items to be executed as a test program and whether testing is executed or not are decided from the results of editing by a test item scheduling section, a test-item execution table is prepared depending on the order of execution of testing for the decided test items as well as on the condition as to whether testing thereto is executed or not, and the test program is discretely executed for each test item according to the contents of the test-item execution table.