Patent ID: 7155461
Filing Date: 2006-12-26
Classification: G06F,Y10S

Abstract:
1. An information processing system comprising: a storage system to store data; a host computer to read and write a file configuring data to the storage system; and a server computer to execute a process for detecting a virus for the file, the server computer including a database for managing virus patterns, the database having a last update time of a virus pattern indicating a time when the pattern of a virus was last updated; wherein the storage system receives, from the server computer, the data of the file to store the data; wherein the host computer is provided with file attribute information indicating an attribute of the file, the file attribute information including a last scan time indicating a time when the file was last processed for virus detection and location information indicating where the data of the file is located in the storage system; and wherein the host computer determines whether a file is scanned or not on the basis of the last scan time in the file attribute information and the last update time of the virus pattern from the database of the server computer; and if the last scan time is earlier than the last update time, the host computer asks the server computer to scan for virus in the file; and if the last scan time is not earlier than the last update time, the host computer opens the file without virus scanning.