Abstract: An image forming apparatus of the present disclosure includes a first processing unit; a second processing unit configured to perform a process different from a process performed by the first processing unit; and a non volatile memory device in which a shared root file system has been stored, the shared root file system mounted by a kernel for the first processing unit and a kernel for the second processing unit.

Abstract: An image forming apparatus includes a RAID control unit comprising an access request queue and an access request arbitrating unit configured to store access requests to a logical disk sent from an operating system in the access request queue on the basis of fetch order determination information, and to fetch the access requests. An access arbitration method for a RAID driver comprises the steps of storing the access requests in an access request queue on the basis of fetch order determination information, converting logical disk access information contained in access information corresponding to the access requests into physical disk access information, and supplying the access information containing the physical disk access information to a RAID controller.

Abstract: The present invention claims and discloses an information processor comprising: an auxiliary storing unit that has at least one and preferably two auxiliary storage devices in which at least three distributable virtual disks are formed so as to be distributed; a disk array control unit that controls the at least three distributable virtual disks that designate one of disk control modes; a CB storing unit that stores a control block in each virtual disk that includes but is not limited to first designation information for designating the disk control mode and second designation information for designating an auxiliary storage; and a device driver unit that generates control information of the disk array control unit including but not limited to the first designation information and the second designation information and that transmits the control information to the disk array control unit based on a request for accessing any of the at least three distributable virtual disks and a control block corresponding to

Abstract: An image forming apparatus includes a RAID control unit comprising an access request queue and an access request arbitrating unit configured to store access requests to a logical disk sent from an operating system in the access request queue on the basis of fetch order determination information, and to fetch the access requests. An access arbitration method for a RAID driver comprises the steps of storing the access requests in an access request queue on the basis of fetch order determination information, converting logical disk access information contained in access information corresponding to the access requests into physical disk access information, and supplying the access information containing the physical disk access information to a RAID controller.

Abstract: A memory management unit including: a first memory portion in which a memory area is allocated; a memory allocation processor for allocating and releasing a memory area in the first memory portion; a second memory portion for storing reserve area information regarding a memory area which should be reserved in an upper or lower address area of the first memory portion; and a learning reservation processor for monitoring the memory area allocation and release executed in the memory portion, allowing the information regarding the memory area which fragments the first memory portion to be stored in the second memory portion as the reserve area information. The learning reservation processor gives an instruction to the memory allocation processor to reserve a memory area according to the reserve area information, and the memory allocation processor reserves the memory area according to the reserve area information.

Abstract: The present invention claims and discloses an information processor comprising: an auxiliary storing unit that has at least one and preferably two auxiliary storage devices in which at least three distributable virtual disks are formed so as to be distributed; a disk array control unit that controls the at least three distributable virtual disks that designate one of disk control modes; a CB storing unit that stores a control block in each virtual disk that includes but is not limited to first designation information for designating the disk control mode and second designation information for designating an auxiliary storage; and a device driver unit that generates control information of the disk array control unit including but not limited to the first designation information and the second designation information and that transmits the control information to the disk array control unit based on a request for accessing any of the at least three distributable virtual disks and a control block corresponding to

Abstract: A memory management unit including: a first memory portion in which a memory area is allocated; a memory allocation processor for allocating and releasing a memory area in the first memory portion; a second memory portion for storing reserve area information regarding a memory area which should be reserved in an upper or lower address area of the first memory portion; and a learning reservation processor for monitoring the memory area allocation and release executed in the memory portion, allowing the information regarding the memory area which fragments the first memory portion to be stored in the second memory portion as the reserve area information. The learning reservation processor gives an instruction to the memory allocation processor to reserve a memory area according to the reserve area information, and the memory allocation processor reserves the memory area according to the reserve area information.