INFORMATION PROCESSING DEVICE, DEDUPLICATION RATE DETERMINATION METHOD AND DEDUPLICATION RATE DETERMINATION PROGRAM

摘要

To provide an information processing device capable of calculating the deduplication rate when multiple pools are integrated for allowing a user to estimate in advance the size of a physical area required after the integration.SOLUTION: A deduplication rate determination part 4a of a CM (Controller Module) 4 comprises: a duplication number calculation part 41; and a deduplication rate calculation part 42. The duplication number calculation part 41 is configured to calculate the deduplication number of unit data in two pools and the total number of reference count of the two pools. The deduplication rate calculation part 42 is configured to calculate the deduplication rate by using the deduplication number and the total number of the reference count.SELECTED DRAWING: Figure 2