Patent ID: 9501230
Filing Date: 2016-11-22
CPC Classification: G06F

Claim Text:
1. A non-transitory storage medium storing a control program to be loaded to an information processing device to which first and second storage units are connectable, the first storage unit includes a first memory that is at least readable, and the second storage unit includes a readable and writable second non-volatile memory, and a control unit configured to invalidate one or more mappings of a logical address region specified by a received deletion notification to the second non-volatile memory and transmit data indicated by a first function to the information processing device when a logical address region specified by a received read command is not mapped to the second non-volatile memory, wherein the control program causing the information processing device to perform: a first process of reading data from a first logical address region of the first storage unit; a second process of determining whether data read from the first logical address region is identical with the data indicated by the first function; a third process of writing the read data to a second logical address region of the second storage unit when the read data is not identical with the data indicated by the first function; and a fourth process of sending the deletion notification to the second storage unit to invalidate one or more mappings of the second logical address region to the second non-volatile memory without sending the read data to the second storage unit when the read data is identical with the data indicated by the first function.