CA2145164A1 - Baton Passing Optimization Scheme for Load Balancing/Configuration Planning in a Video-on-Demand Computer System - Google Patents

Baton Passing Optimization Scheme for Load Balancing/Configuration Planning in a Video-on-Demand Computer System

Info

Publication number
CA2145164A1
CA2145164A1 CA2145164A CA2145164A CA2145164A1 CA 2145164 A1 CA2145164 A1 CA 2145164A1 CA 2145164 A CA2145164 A CA 2145164A CA 2145164 A CA2145164 A CA 2145164A CA 2145164 A1 CA2145164 A1 CA 2145164A1
Authority
CA
Canada
Prior art keywords
computer system
videos
disks
load balancing
video
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2145164A
Other languages
French (fr)
Other versions
CA2145164C (en
Inventor
Hadas Shachnai
Joel L. Wolf
Philip S. Yu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of CA2145164A1 publication Critical patent/CA2145164A1/en
Application granted granted Critical
Publication of CA2145164C publication Critical patent/CA2145164C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/40—Data acquisition and logging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17336—Handling of requests in head-ends
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99941—Database schema or data structure
    • Y10S707/99944—Object-oriented database structure
    • Y10S707/99945—Object-oriented database structure processing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99941—Database schema or data structure
    • Y10S707/99948—Application of database or data structure, e.g. distributed, multimedia, or image

Abstract

A video on demand computer system includes a plurality of storage media each storing a plurality of videos. The storage media are disks attached to a computer system. The computer system plays the videos on demand by reading out the videos from the disks as data steams to play selected ones of the videos for users responsive to received user performance requests. The computer system is programmed to monitor the numbers of videos being performed for each of the disks. Based on the monitoring function performed by the computer system, the computer system performs a load balancing function by transferring the performance of a video in progress from one of the disks to another disk having a copy of the video in progress. The computer system periodically performs a reassignment function to transfer videos between the disks to optimize load balancing based on the user performance requests for each of the videos. There are two phases to the load balancing performed by the computer system; a static phase and a dynamic phase. In the static phase, videos are assigned to memory and disks, and in the dynamic phase there is provided a scheme for playing videos with minimal and balanced loads on the disks. The static phase supports the dynamic phase which insures optimal real-time operation of the system. Dynamic phase load balancing is accomplished by a process of baton passing.
CA002145164A 1994-05-11 1995-03-20 Baton passing optimization scheme for load balancing/configuration planning in a video-on-demand computer system Expired - Fee Related CA2145164C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US241,087 1994-05-11
US08/241,087 US5544313A (en) 1994-05-11 1994-05-11 Baton passing optimization scheme for load balancing/configuration planning in a video-on-demand computer system

Publications (2)

Publication Number Publication Date
CA2145164A1 true CA2145164A1 (en) 1995-11-12
CA2145164C CA2145164C (en) 1998-12-15

Family

ID=22909198

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002145164A Expired - Fee Related CA2145164C (en) 1994-05-11 1995-03-20 Baton passing optimization scheme for load balancing/configuration planning in a video-on-demand computer system

Country Status (6)

Country Link
US (1) US5544313A (en)
EP (1) EP0683464B1 (en)
JP (1) JP3305916B2 (en)
KR (1) KR0160218B1 (en)
CA (1) CA2145164C (en)
DE (1) DE69509433T2 (en)

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Also Published As

Publication number Publication date
EP0683464A2 (en) 1995-11-22
CA2145164C (en) 1998-12-15
KR950033924A (en) 1995-12-26
JPH08102933A (en) 1996-04-16
EP0683464A3 (en) 1996-07-03
KR0160218B1 (en) 1998-12-15
JP3305916B2 (en) 2002-07-24
EP0683464B1 (en) 1999-05-06
US5544313A (en) 1996-08-06
DE69509433D1 (en) 1999-06-10
DE69509433T2 (en) 1999-12-16

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