GB9608324D0 - Array type recording system - Google Patents

Array type recording system

Info

Publication number
GB9608324D0
GB9608324D0 GBGB9608324.1A GB9608324A GB9608324D0 GB 9608324 D0 GB9608324 D0 GB 9608324D0 GB 9608324 A GB9608324 A GB 9608324A GB 9608324 D0 GB9608324 D0 GB 9608324D0
Authority
GB
United Kingdom
Prior art keywords
unit
data
write
read
magnetic disk
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
GBGB9608324.1A
Other versions
GB2298307A (en
GB2298307B (en
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
Priority claimed from JP26736492A external-priority patent/JP3181398B2/en
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB9608324D0 publication Critical patent/GB9608324D0/en
Publication of GB2298307A publication Critical patent/GB2298307A/en
Application granted granted Critical
Publication of GB2298307B publication Critical patent/GB2298307B/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
    • 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
    • G06F11/1008—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's in individual solid state devices
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0673—Single storage device

Landscapes

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

Abstract

A read unit 400 which governs reading of data and a write unit 500 which governs writing of data are located separately in a RAID unit 300 which controls array type magnetic disk units. To read data from magnetic disk units 800, a control circuit 600 uses the read unit 400 to read data through an HDD control unit 700. To write data, the control circuit 600 uses the write unit 500 to write data into the magnetic disk units 800. Since the read unit and write unit are provided separately, processing performance improves. A tasking means 340 is provided for accessing a number of media in the array which selects the next task to be performed by reading an interrupt vector 344, the individual bits being set upon completion of a corresponding disk access.
GB9608324A 1992-10-06 1993-10-05 Array type recording system Expired - Fee Related GB2298307B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP26736492A JP3181398B2 (en) 1992-10-06 1992-10-06 Array type recording device
GB9320521A GB2271462B (en) 1992-10-06 1993-10-05 Array type recording system

Publications (3)

Publication Number Publication Date
GB9608324D0 true GB9608324D0 (en) 1996-06-26
GB2298307A GB2298307A (en) 1996-08-28
GB2298307B GB2298307B (en) 1997-03-05

Family

ID=26303638

Family Applications (3)

Application Number Title Priority Date Filing Date
GB9608325A Withdrawn GB2298308A (en) 1992-10-06 1993-10-05 A disk storage array with a spiralling distribution of redundancy data
GB9608322A Expired - Fee Related GB2298306B (en) 1992-10-06 1993-10-05 Array type recording system
GB9608324A Expired - Fee Related GB2298307B (en) 1992-10-06 1993-10-05 Array type recording system

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB9608325A Withdrawn GB2298308A (en) 1992-10-06 1993-10-05 A disk storage array with a spiralling distribution of redundancy data
GB9608322A Expired - Fee Related GB2298306B (en) 1992-10-06 1993-10-05 Array type recording system

Country Status (1)

Country Link
GB (3) GB2298308A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19703009A1 (en) * 1997-01-28 1998-04-02 Siemens Nixdorf Inf Syst Redundant data security system for long-term data archiving and back=up
US6185639B1 (en) 1998-06-05 2001-02-06 International Business Machines Corporation System and method to reduce a computer system's interrupt processing overhead

Also Published As

Publication number Publication date
GB2298307A (en) 1996-08-28
GB2298308A (en) 1996-08-28
GB2298306A (en) 1996-08-28
GB2298307B (en) 1997-03-05
GB9608325D0 (en) 1996-06-26
GB9608322D0 (en) 1996-06-26
GB2298306B (en) 1997-03-05

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Legal Events

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

Effective date: 20000127

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031005