INFORMATION PROCESSING APPARATUS AND DATA TRANSFER CONTROL METHOD

摘要

An address translation table stores therein an association relation between a logical address and a physical address, change information indicating a change in the association relation when the association relation is changed such that a physical address having been associated with each logical address is associated with a different logical address, and the different logical address. A table control unit, when receiving a command to move data between logical addresses from a CPU, changes the association relation in the address translation table such that a movement-destination logical address is associated with a physical address in which the data is stored, sets change information in a movement-source logical address, and stores the movement-destination logical address as a different logical address associated with the movement-source logical address.

主权项

1. An information processing apparatus comprising:
a data storage unit that manages stored data by a physical address; a processing unit that outputs a command to process the data stored in the data storage unit by using a logical address associated with the physical address; a relation storage unit that stores therein an association relation between the logical address and the physical address, change information indicating a change in the association relation when the association relation is changed such that a physical address having been associated with each logical address is associated with a different logical address, and the different logical address; and an address control unit that, when receiving a command to move data between logical addresses from the processing unit, changes the association relation in the relation storage unit so as to associate a movement-destination logical address with a physical address in which the data is stored, sets the change information in a movement-source logical address, and stores the movement-destination logical address as the different logical address associated with the movement-source logical address.