GB2307071B - Multi-media storage system - Google Patents

Multi-media storage system

Info

Publication number
GB2307071B
GB2307071B GB9701739A GB9701739A GB2307071B GB 2307071 B GB2307071 B GB 2307071B GB 9701739 A GB9701739 A GB 9701739A GB 9701739 A GB9701739 A GB 9701739A GB 2307071 B GB2307071 B GB 2307071B
Authority
GB
United Kingdom
Prior art keywords
data
storage system
redundant
drive
media storage
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.)
Expired - Fee Related
Application number
GB9701739A
Other versions
GB2307071A (en
GB9701739D0 (en
Inventor
Hiroshi Baba
Shiro Ogura
Masahiro Mizuno
Kazuhiko Ito
Hitoshi Yamamoto
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority claimed from GB9612299A external-priority patent/GB2302428B/en
Publication of GB9701739D0 publication Critical patent/GB9701739D0/en
Publication of GB2307071A publication Critical patent/GB2307071A/en
Application granted granted Critical
Publication of GB2307071B publication Critical patent/GB2307071B/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
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G06F11/1076—Parity data used in redundant arrays of independent storages, e.g. in RAID systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/10—Indexing scheme relating to G06F11/10
    • G06F2211/1002—Indexing scheme relating to G06F11/1076
    • G06F2211/1016—Continuous RAID, i.e. RAID system that allows streaming or continuous media, e.g. VOD

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Hardware Redundancy (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

In a storage system for multi-media data, independent primary data items, such as videos A, B, C, and redundant data DD are stored on disc drives 210, 211 and, if one drive 210 fails, requested data are reconstructed from the redundant data and the data on the other drives 210. The storage system may be of the redundant-array-of-inexpensive-disks (RAID) type having a control unit 213 with provision for retrying acesses, logging the retries, suspending access to a faulty drive, adding an extra drive and updating redundancy data.
GB9701739A 1995-06-21 1996-06-12 Multi-media storage system Expired - Fee Related GB2307071B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP15448695 1995-06-21
GB9612299A GB2302428B (en) 1995-06-21 1996-06-12 Multi-media storage system

Publications (3)

Publication Number Publication Date
GB9701739D0 GB9701739D0 (en) 1997-03-19
GB2307071A GB2307071A (en) 1997-05-14
GB2307071B true GB2307071B (en) 1998-04-29

Family

ID=26309500

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9701739A Expired - Fee Related GB2307071B (en) 1995-06-21 1996-06-12 Multi-media storage system

Country Status (1)

Country Link
GB (1) GB2307071B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100407166C (en) * 2004-07-29 2008-07-30 普安科技股份有限公司 Method for improving data reading performance using redundancy and storage system for performing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569236A2 (en) * 1992-05-08 1993-11-10 Compaq Computer Corporation Error correcting code technique for improving reliability of a disk array
WO1994029795A1 (en) * 1993-06-04 1994-12-22 Network Appliance Corporation A method for providing parity in a raid sub-system using a non-volatile memory
GB2299424A (en) * 1995-03-30 1996-10-02 Mitsubishi Denki Kabushiki Kaisha Client-server system with load distribution and storage redundancy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569236A2 (en) * 1992-05-08 1993-11-10 Compaq Computer Corporation Error correcting code technique for improving reliability of a disk array
WO1994029795A1 (en) * 1993-06-04 1994-12-22 Network Appliance Corporation A method for providing parity in a raid sub-system using a non-volatile memory
GB2299424A (en) * 1995-03-30 1996-10-02 Mitsubishi Denki Kabushiki Kaisha Client-server system with load distribution and storage redundancy

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Dialog record 01710735 of MacWEEK, v8, n45, p65(3), 14 November 1994 *

Also Published As

Publication number Publication date
GB2307071A (en) 1997-05-14
GB9701739D0 (en) 1997-03-19

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20000128

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070612