Patent ID: 7836023
Filing Date: 2010-11-16
Classification: G06F,Y10S

Abstract:
1. A storage system, comprising: a client including at least one client process and an archive client library; an archive server that is connected to the client via a network, and that processes a request issued from the client, wherein: the archive server stores a file information table storing a file identification of a file and an archived date of the file stored in a storage device that is connected to the archive server, and the archive client library, when it processes a first file read request, stores the archived date of a first file requested and a process identifier of a client process that requested the first file read request, in an archived date management table; the archive client library, when receiving a second file read request from client process, containing a file name of a second file relating to the first file obtained from the archive server, without designating the archived date of the second file: obtains the archived date of the first file, stored in the archived date management table, based on the process identifier corresponding to the second file, appends the obtained archived date to the second file read request, and sends the second file read request to the archive server; and the archive server, when receiving the second file read request: identifies a latest archived file having the file name of the second file, that was recorded before the obtained archived date, referring to the file information table, obtains the identified second file from the storage device, and sends the obtained second file to the client process.