Patent ID: 7424482
Filing Date: 2008-09-09
Classification: G06F,G11B,Y10S

Abstract:
1. For use in a storage network operable with a block mode access storage protocol, a method of operating a compression system operatively coupled with at least one computer and with at least one storage logical unit accommodating compressed data, said method comprising: a. creating in respect to the storage logical unit a corresponding virtual logical unit configured to virtually represent in non-compressed form the data stored in the storage logical unit, wherein a size of the virtual logical unit corresponds to an estimated size of raw data which, being compressed, would substantially amount to a size of the storage logical unit and providing the following: b) intercepting “read given data range” data access related requests from said at least one computer addressed to the storage logical unit and addressing said request to the virtual logical unit and providing the following operations: c) facilitating mapping between the compressed data stored in the compressed sections and their representation at the virtual logical unit.