Patent ID: 7519783
Filing Date: 2009-04-14
Classification: G06F,H04L,Y10S

Abstract:
1. A storage control apparatus for reading/writing data with respect to a storage device in response to a data input/output request transmitted from an information processing apparatus, said storage control apparatus being communicatably connected to a plurality of other storage control apparatuses via a network, said storage control apparatus is configured to: store a first period during which data is required to be stored, said data being stored in a first storage area corresponding to a storage area of said storage device to which said storage control apparatus reads/writes the data, the data having an expiration period; store a first physical life time period in which said first storage area can store the data without expiration; store a second physical life time period in which a second storage area can store the data without expiration; transfer said data stored in said first storage area to said second storage area, when a condition is satisfied, said condition being before an end of the first physical life time period and before an end of the data expiration period and before an end of the second physical life time period; relate a remaining useful life time period of the data with the second storage area; and store the relationship.