Remote control of backup media in a secondary storage subsystem through access to a primary storage subsystem
Patent 6353878 Issued on March 5, 2002. Estimated Expiration Date: August 13, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
A primary data storage subsystem has primary data storage and a storage controller for controlling access of host processors to the primary data storage. The primary data storage subsystem is linked to a secondary data storage subsystem for transfer of backup data between the primary data storage subsystem and the secondary data storage subsystem. The secondary data storage subsystem has a tape library unit for storing the backup data. A host processor usually accesses the primary storage. A host can also send backup and restore commands to the storage controller, to cause specified data from the primary storage to be written as a backup version in the tape library unit, and to cause a specified backup version to be read from the tape library unit to be accessible to the host from the primary data storage unit. In this fashion, the host need not be concerned with the basic operations of the tape library unit. A host, however, can send backup media remote control requests to the storage controller, and the storage controller responds by sending corresponding backup media remote control commands to the tape library unit, to permit the host to control remotely the basic operations of the tape library unit. Therefore, the host can obtain status of read/write stations in the tape library unit, and control the mounting, unmounting, and transport of the tapes mounted at the read/write stations.
Other References
Microsoft Press Computer Dictionary, Third Edition, Microsoft Corporation, Redmond, Washington, 1997, pp. 497-500
Uresh Vahalia, UNIX Internals: The new frontiers, Chapter 9, "File System Implementations," Prentice-Hall, Inc., Upper Saddle River, New Jersey, 1996, pp. 261-289
Mendel Rosenblum and John K. Ousterhout, "The Design and Implementation of a Log-Structured File System," ACM Transactions on Computer Systems, vol. 10, No. 1, Feb. 1992, pp. 26-52
Sun Microsystems, Inc. "NFS: Network File System Protocol Specification," Network Working Group, http://www.attrition.org/~modify/texts/rfc/rfc1094.txt, Mar. 1989, 23 pages
David A. Patterson, Peter Chen, Garth Gibson, and Randy H. Katz, "Introduction to Redundant Arrays of Inexpensive Disks (RAID)," Digest of Papers in Spring COMPCON89, Feb. 27-Mar. 31, 1989, Thirty-Fourth IEEE Computer Society International Conference, San Francisco, CA, pp.112-117
Fred Douglis and John Ousterhout, "Log-Structured File Systems," Digest of Papers in Spring COMPCON89, Feb. 27-Mar. 31, 1989, Thirty-Fourth IEEE Computer Society International Conference, San Francisco, CA, pp. 124-129
D.L. Burkes and R.K. Treiber, "Design Approaches for Real-Time Transaction Processing Remote Site Recovery," Digest of Papers in Spring COMPCON90, Feb. 26-Mar. 2, 1990, Thirty-Fifth IEEE Computer Society International Conference, San Francisco, CA, pp. 568-572
Rangen PV, Vin HM, "Designing File Systems For Digital Audio and Video," Proceedings of the 13th ACM Symposium on Operating systems Principles, Monterey, Calif., 1992, pp. 81-94
Vin HM, Rangan PV, (1993), "Designing a Multiuser HDTV Storage Service," IEEE Journal on Selected Areas in Communication, vol. 11, No. 1, Jan. 1993, pp. 153-164
Anderson DP, Osawa Y, Govindan r, "A File System for Continuous Media," ACM Transactions on Compjter Systems, vol. 10., No. 4, Nov. 1992, pp. 311-337
Federighi C, "A Distributed Hierarchical Storage Manager for a Video-on-Demand System," Department of Electrical Engr. and Computer Science, University of California, Berkeley, California, Dec. 1993
Haskin, R, "The Shark Continuous-Media File Server." Proceedings, IEEE COMPCON 93, San Francisco, California, 1993, pp. 12-15
Little TD, Rhanger G, Folz RJ, Gibbon JF, Reeve FW, Schelleng DH, Venkatesh D, "A Digital On-Demand Video Service Supporting Content Based queries," Proceedings of ACM Multimedia 93, Anaheim, California, Aug. 1-6, pp. 427-436
Lougher, P, Sheperd, D. "The Design of a Storage Server For Continuous Media," The Computer Journal, vol. 36, No. 1, 1993, pp. 32-42
Sincoskie, WD, "System Architecture For a Large Scale Video on Demand Service," Computer Networks and ISDN Systems, vol. 22, No. 2, Sep. 1991, pp. 155-162
Tobagi FA, Pang J. "StarWorks (Trademark)--A Video Applications Server," Proceedings, IEEE COMPCON 93, San Francisco, California, 1993, pp. 4-11
Vaitzblit L, "The Design and Implementation of a High Bandwidth File Service for Continuous Media," Master's Thesis, Massachusetts Institute of Technology, Cambridge, Mass., Nov. 4, 199
August 13, 2018. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
