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Researchers Submit Patent Application, "Apparatus and Method for Managing Files in Hybrid Storage System", for Approval

September 2, 2014



By a News Reporter-Staff News Editor at Information Technology Newsweekly -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors KIM, Dong Oh (Daejeon, KR); KIM, Hong Yeon (Daejeon, KR); KIM, Young Kyun (Daejeon, KR), filed on June 21, 2013, was made available online on August 21, 2014.

No assignee for this patent application has been made.

News editors obtained the following quote from the background information supplied by the inventors: "(a) Field of the Invention

"The present invention relates to a method and apparatus for managing files in a hybrid storage system.

"(b) Description of the Related Art

"In general, a high-speed storage device has excellent performance but has low capacity, whereas a low-speed storage device has poor performance as compared with a high-speed storage device, but has a high capacity.

"A hybrid storage system includes a high-speed storage device and a low-speed storage device, and increases cost versus performance by properly using the high-speed storage device and the low-speed storage device.

"If the high-speed storage device of the hybrid storage system is increasingly used, the hybrid storage system has better performance. Accordingly, the high-speed storage device needs to be always used by securing a space available for the high-speed storage device through a task for moving data stored in the high-speed storage device to the low-speed storage device having a high capacity or deleting the stored data.

"In particular, the utilization of this high-speed storage device is increasing in order for a storage system to remotely provide files to a client terminal so that the client terminal uses the resources of a server like its own resources, such as a network file system or a distributed file system, to efficiently manage files and rapidly transfer the files to the client terminal for the purpose of sharing the resources of the server and a file system.

"Several methods are being used in a hybrid storage system in order to improve speed. In one of them, a cache or NAND flash memory having high speed is chiefly used. However, the methods disclose a method of utilizing a high-speed storage device using an existing cache for storing a file in a block unit, but do not disclose a method of utilizing the meaning of a file, such as a directory, for the purpose of efficient file management."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "The present invention has been made in an effort to provide a method and apparatus for managing files in a hybrid storage system having an advantage in that a hybrid storage system can efficiently manage files of a high-speed storage device and a low-speed storage device.

"According to an embodiment of the present invention, an apparatus for managing files in a hybrid storage system is provided. The apparatus for managing files includes first and second storage devices for storing files according to a file management policy based on a directory unit, a metadata management unit for establishing a file management policy based on a directory unit, and a data management unit for managing files of the first and second storage devices in accordance with the established file management policy based on the directory unit.

"Managing the files may include at least one of monitoring, place, re-place, and movement of a file belonging to a corresponding directory.

"The data management unit may generate a new file in accordance with a file management policy established in a directory of the first and second storage devices in which the new file will be disposed.

"At least one of the metadata management unit and the data management unit may select a file to be moved and deleted in accordance with the file management policy based on the directory unit, and the data management unit may move and delete the selected file.

"The metadata management unit may collect pieces of utilization information about the file in a unit of a directory to which the file belongs, analyze the pieces of collected utilization information, and establish the directory-based file management policy based on a result of the analysis.

"According to an embodiment of the present invention, a file management method performed by an apparatus for managing files in a hybrid storage system including first and second storage devices for storing files is provided. The file management method includes establishing a file management policy based on a directory unit and managing the files stored in the first and second storage devices in accordance with the file management policy established based on the directory unit.

"Managing the files stored in the first and second storage devices may include selecting a file to be managed in accordance with the file management policy established based on the directory unit and processing the file to be managed in accordance with a file management policy established in a corresponding directory, wherein the file to be managed may include at least one of a file to be moved and a file to be deleted.

"Establishing a file management policy based on a directory unit may include collecting pieces of utilization information about a file based on the directory unit and analyzing the pieces of collected utilization information and establishing a file management policy for a directory to which the file will belong based on a result of the analysis.

"Establishing a file management policy based on a directory unit may include establishing the file management policy based on the directory unit based on information received from a client terminal.

"Managing the files stored in the first and second storage devices may include receiving a new file generation request from a client terminal, checking a file management policy for a directory in which a new file will be placed, and generating the new file in accordance with the file management policy for the directory in which the new file will be placed.

"The file management policy may include place information and management information.

BRIEF DESCRIPTION OF THE DRAWINGS

"FIG. 1 is a diagram showing an apparatus for managing files in a hybrid storage system in accordance with an exemplary embodiment of the present invention.

"FIG. 2 is a flowchart illustrating a method of generating a new file in accordance with an exemplary embodiment of the present invention.

"FIG. 3 is a flowchart illustrating a method for managing files in accordance with an exemplary embodiment of the present invention."

For additional information on this patent application, see: KIM, Dong Oh; KIM, Hong Yeon; KIM, Young Kyun. Apparatus and Method for Managing Files in Hybrid Storage System. Filed June 21, 2013 and posted August 21, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=599&p=12&f=G&l=50&d=PG01&S1=20140814.PD.&OS=PD/20140814&RS=PD/20140814

Keywords for this news article include: Patents, Information Technology, Information and Data Management.

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Source: Information Technology Newsweekly


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