VIRTUAL MACHINE IMAGE DISTRIBUTION METHOD, DOWNLOADING METHOD AND APPARATUS USING DUPLICATION BASED P2P

摘要

Disclosed are a method and an apparatus for distributing and downloading a virtual machine image through a peer-to-peer (P2P) based duplication removal scheme. A method for downloading a virtual machine image by a peer node includes the steps of: (a) downloading a meta file of a new virtual machine image from a server; (b) determining a virtual machine image most similar to the new virtual machine image among the virtual machine images, which are previously retained, as a reference virtual machine image based on similar image information provided from the server; (c) determining matched blocks using meta files of the reference virtual machine image and the new virtual machine image, and duplicating data of the matched block to a corresponding block position of the new virtual machine image; and (d) downloading at least one block, which is not duplicated in the new virtual machine image, from adjacent another peer.