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(12) United States Patent
(io) Patent No.: (45) Date of Patent:
US 7,792,923 B2 Sep. 7, 2010
(54) DISK SYSTEM ADAPTED TO BE DIRECTLY ATTACHED TO NETWORK
(75) Inventor: Han-gyoo Kim, Seoul (KR)
(73) Assignee: Zhe Khi Pak, Moscow (RU)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 864 days.
(21) Appl.No.: 09/974,082
(22) Filed: Oct. 9, 2001
(65) Prior Publication Data
US 2002/0069245 Al Jun. 6, 2002
Related U.S. Application Data
(60) Provisional application No. 60/240,344, filed on Oct. 13, 2000.
A network-attached disk (NAD) system is disclosed that includes an NAD device for receiving a disk access command from a host through a network, and a device driver at the host for controlling the NAD device through the network, where the device driver creates a virtual host bus adapter so that the host recognizes the NAD device as if it is a local device to the host. The host may run the UNIX or Windows family of operating systems. The NAD device includes a disk for storing data, a disk controller for controlling the disk, and a network adapter for receiving a disk access command from the host through a network port.
22 Claims, 24 Drawing Sheets
Japanese Office Action, App. No. 513300/2003, Feb. 6, 2007. Blunden et al., "Storage Network Virtualization: What's it all about?", ibm.com/redbooks, XP-002286341, pp. 1-110, Dec. 2000. Klein, Yaron, "Storage Virtualization with iSCSI Protocol", Internet Draft, XP-015030964, pp. 1-15, Nov. 2, 2000. Schulz, Greg, "SAN and NAS; Complementary Technologies", http://www.mti.com/white_papers/WP20002.pdf, XP-002201566, pp. 1-7, May 1,2000.
Supplementary European Search Report, Application No. 01272932. 3, 4 pages, Nov. 5, 2007.
EP Communication 94(3) issued in co-pending European Application No. 01 272 932.3—2413 (Issued Aug. 3, 2009) (9 pages). Yaron Klein, Sanrad, "Storage Virtualization with iSCSI Protocol; draft-klein-ips-virt-00.txt" (Nov. 2, 2000) (15 pages). Blunden, Mark, et al, "Storage Networking Virtualization What's it all about?" IBM Redbooks (Dec. 2000) (124 pages). Schulz,Greg, "SAN and NAS; Complementary Technologies—SAN and NAS provide Storage and Data Sharing" Internet Citation (May 1,2000) (11 pages).
* cited by examiner