Abstract: An information processing apparatus includes, a memory that stores a program of a current device driver and a program of a new device driver that is an updated version of the current device driver; and a processor that performs an initialization process by acquiring a current device file for the current device driver and creating a virtual device file for the new device driver based on the current device file while access to the device using the current device driver is permitted, and generating a new device file by reflecting a setting information difference between setting information in the current device driver and setting information in the new device driver on the virtual device file while the access to the device using the current device driver is not permitted, starts the new device driver using the new device file, and switches the current device driver to the new device driver.

Abstract: An apparatus including a physical memory partitioned into areas, a flag storage unit to store flags wherein a flag is set as indicating an area being updated when storage information stored in the area is updated, the area being associated with the flag, and a processor. The processor executes a first process of recording, when any fault does not occur, storage information stored in a first area to a recording device, the first area being associated with a first flag indicating the first area being updated, a process of saving, in a saving device, the storage information stored in the first area, and clearing the first flag so as to indicate the first area not being updated, and a second process of recording, to the recording device, storage information stored in a second area associated with a second flag indicating being updated when the fault occurs.

Abstract: An information processing apparatus includes, a memory that stores a program of a current device driver and a program of a new device driver that is an updated version of the current device driver; and a processor that performs an initialization process by acquiring a current device file for the current device driver and creating a virtual device file for the new device driver based on the current device file while access to the device using the current device driver is permitted, and generating a new device file by reflecting a setting information difference between setting information in the current device driver and setting information in the new device driver on the virtual device file while the access to the device using the current device driver is not permitted, starts the new device driver using the new device file, and switches the current device driver to the new device driver.

Abstract: An apparatus including a physical memory partitioned into areas, a flag storage unit to store flags wherein a flag is set as indicating an area being updated when storage information stored in the area is updated, the area being associated with the flag, and a processor. The processor executes a first process of recording, when any fault does not occur, storage information stored in a first area to a recording device, the first area being associated with a first flag indicating the first area being updated, a process of saving, in a saving device, the storage information stored in the first area, and clearing the first flag so as to indicate the first area not being updated, and a second process of recording, to the recording device, storage information stored in a second area associated with a second flag indicating being updated when the fault occurs.

Abstract: An information processing apparatus includes: processors each having a memories and a memory controller that controls the memories; a normality checker that checks whether the processors operate normally when started; a failure detector that finds any failed processor from a result of the check; a fallback unit that falls back a failed processor if any; a redundancy determiner that determines whether the memories are used in a redundancy configuration; a redundancy cancellation determiner that determines, when the memories are determined to be used in the redundant configuration, whether the redundancy configuration of the memories is to be cancelled; and a redundancy canceller that cancels, when the redundancy configuration of the memories is to be cancelled, the redundancy configuration of the memories in at least one processor operating normally.

Abstract: An information processing apparatus includes: processors each having a memories and a memory controller that controls the memories; a normality checker that checks whether the processors operate normally when started; a failure detector that finds any failed processor from a result of the check; a fallback unit that falls back a failed processor if any; a redundancy determiner that determines whether the memories are used in a redundancy configuration; a redundancy cancellation determiner that determines, when the memories are determined to be used in the redundant configuration, whether the redundancy configuration of the memories is to be cancelled; and a redundancy canceller that cancels, when the redundancy configuration of the memories is to be cancelled, the redundancy configuration of the memories in at least one processor operating normally.

Abstract: An information processing method executed by an information processing apparatus. The information processing includes: running a virtual machine that emulates an idle state of other information apparatus; powering on the other information apparatus when receiving a process execution request issued to the running virtual machine; and transferring the received execution request to the powered-on other information apparatus.