MOBILE STATION WITH EXPANDED STORAGE SPACE AND METHOD OF RETRIEVING FILES BY THE MOBILE STATION

摘要

Disclosed is a mobile station having an expanded storage space, and a method of retrieving a file stored in a remote storage server. The method may include determining whether the file is locally stored or remotely stored, deleting files in a local storage to provide space if the file is determined to reside in a remote storage server, downloading the file from a remote storage server over the Internet by prefetching a portion of the file from the remote storage server, and opening the prefetched portion of the file while concurrently downloading a remaining portion of the file from the remote storage server.

主权项

1. A non-transitory computer readable medium comprising computer readable instructions, which when executed by a processor, cause the processor to:
synchronize a local storage with a remote storage server by,
determining a last modification time of a directory based on whether directory information associated with the directory is stored in the local storage,sending a command to the remote storage server to check the directory for consistency against a version of the directory stored in the remote storage server, the command including the last modification time, andreceiving a response packet from the remote storage server, contents of the response packet being based on the sent last modification time; determine whether the file is locally stored or remotely stored; delete files in the local storage to provide space if the file is remotely stored and insufficient space exists in the local storage for the file; prefetch a portion of the file from the remote storage server; and open the prefetched portion of the file while concurrently downloading a remaining portion of the file from the remote storage server.