JPH0451851B2 - - Google Patents

Info

Publication number
JPH0451851B2
JPH0451851B2 JP60182820A JP18282085A JPH0451851B2 JP H0451851 B2 JPH0451851 B2 JP H0451851B2 JP 60182820 A JP60182820 A JP 60182820A JP 18282085 A JP18282085 A JP 18282085A JP H0451851 B2 JPH0451851 B2 JP H0451851B2
Authority
JP
Japan
Prior art keywords
data
write
buffer
block length
instruction
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 - Lifetime
Application number
JP60182820A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6243725A (ja
Inventor
Masayuki Ishiguro
Noboru Oowa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP60182820A priority Critical patent/JPS6243725A/ja
Priority to CA000515618A priority patent/CA1260155A/en
Priority to AU61084/86A priority patent/AU565748B2/en
Priority to DE8686306378T priority patent/DE3688447T2/de
Priority to EP86306378A priority patent/EP0212966B1/en
Priority to US06/897,918 priority patent/US4788641A/en
Priority to KR1019860006871A priority patent/KR900001695B1/ko
Publication of JPS6243725A publication Critical patent/JPS6243725A/ja
Publication of JPH0451851B2 publication Critical patent/JPH0451851B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/10—Program control for peripheral devices
    • G06F13/12—Program control for peripheral devices using hardware independent of the central processor, e.g. channel or peripheral processor
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/10—Program control for peripheral devices
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F3/0682—Tape device

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
JP60182820A 1985-08-20 1985-08-20 磁気テ−プ装置のデ−タ先取り制御方法及びその装置 Granted JPS6243725A (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP60182820A JPS6243725A (ja) 1985-08-20 1985-08-20 磁気テ−プ装置のデ−タ先取り制御方法及びその装置
CA000515618A CA1260155A (en) 1985-08-20 1986-08-08 Magnetic tape system with prefetch control means
AU61084/86A AU565748B2 (en) 1985-08-20 1986-08-12 Magnetic tape system with prefetch control
DE8686306378T DE3688447T2 (de) 1985-08-20 1986-08-18 Magnetbandsystem und methode mit vorauswahlssteuerungsmittel.
EP86306378A EP0212966B1 (en) 1985-08-20 1986-08-18 Magnetic tape system and method with prefetch control means
US06/897,918 US4788641A (en) 1985-08-20 1986-08-19 Magnetic tape prefetch control system dynamically varying the size of the prefetched block
KR1019860006871A KR900001695B1 (ko) 1985-08-20 1986-08-20 프리페치(prefetch)제어수단을 갖춘 자기 테이프 시스템

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60182820A JPS6243725A (ja) 1985-08-20 1985-08-20 磁気テ−プ装置のデ−タ先取り制御方法及びその装置

Publications (2)

Publication Number Publication Date
JPS6243725A JPS6243725A (ja) 1987-02-25
JPH0451851B2 true JPH0451851B2 (en]) 1992-08-20

Family

ID=16125027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60182820A Granted JPS6243725A (ja) 1985-08-20 1985-08-20 磁気テ−プ装置のデ−タ先取り制御方法及びその装置

Country Status (7)

Country Link
US (1) US4788641A (en])
EP (1) EP0212966B1 (en])
JP (1) JPS6243725A (en])
KR (1) KR900001695B1 (en])
AU (1) AU565748B2 (en])
CA (1) CA1260155A (en])
DE (1) DE3688447T2 (en])

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287468A (en) * 1987-06-03 1994-02-15 Sony Corporation Method and apparatus for processing information data
AU622626B2 (en) * 1987-06-03 1992-04-16 Sony Corporation Method of processing data
WO1992009074A1 (en) * 1990-11-13 1992-05-29 Wangtek, Inc. System and method of controlling data transfer rate in a magnetic tape drive
US5787475A (en) * 1992-07-21 1998-07-28 Digital Equipment Corporation Controlled prefetching of data requested by a peripheral
US5487171A (en) * 1992-09-18 1996-01-23 Storage Technology Corporation System for reading and stopping reading data from magnetic tape into memory in response to mount command and write command respectively from the system processor
WO1994019748A2 (en) * 1993-01-11 1994-09-01 Central Point Software, Inc. Method of transferring data using dynamic data block sizing
TW233354B (en) * 1994-03-04 1994-11-01 Motorola Inc Data processor with memory cache and method of operation
US6012106A (en) * 1997-11-03 2000-01-04 Digital Equipment Corporation Prefetch management for DMA read transactions depending upon past history of actual transfer lengths
US6112261A (en) * 1998-05-04 2000-08-29 Hewlett-Packard Company Data transferring system reading and temporarily storing a record until a length of the record is different from a defined record length parameter value
US6515672B1 (en) * 1999-12-23 2003-02-04 Intel Corporation Managing prefetching from a data buffer
GB2367182B (en) * 2000-09-20 2004-05-26 Hewlett Packard Co Improvements in and relating to data protection
US11681437B2 (en) * 2021-02-25 2023-06-20 International Business Machines Corporation Dynamic tape storage device data buffer

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383660A (en) * 1960-02-12 1968-05-14 Gen Electric Data processing system
US4040026A (en) * 1974-05-08 1977-08-02 Francois Gernelle Channel for exchanging information between a computer and rapid peripheral units
US4330844A (en) * 1979-12-12 1982-05-18 Honeywell Information Systems Inc. Logic timing system for tape device adapter
US4435762A (en) * 1981-03-06 1984-03-06 International Business Machines Corporation Buffered peripheral subsystems
US4500965A (en) * 1982-06-04 1985-02-19 Cipher Data Products, Inc. Capstanless magnetic tape drive with electronic equivalent to length of tape
DE3232339A1 (de) * 1982-08-31 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Datenverarbeitungsanlage mit angeschlossenen bewegten aufzeichnungstraegern als periphere geraete und durchfuehrung von ein-/ausgabeoperationen im streaming-betrieb
US4644463A (en) * 1982-12-07 1987-02-17 Burroughs Corporation System for regulating data transfer operations
US4757396A (en) * 1985-07-12 1988-07-12 Fujitsu Limited Magnetic tape system with command prefetch means

Also Published As

Publication number Publication date
KR870002511A (ko) 1987-03-31
DE3688447D1 (de) 1993-06-24
KR900001695B1 (ko) 1990-03-19
EP0212966A3 (en) 1989-12-20
AU565748B2 (en) 1987-09-24
JPS6243725A (ja) 1987-02-25
EP0212966B1 (en) 1993-05-19
DE3688447T2 (de) 1993-08-26
US4788641A (en) 1988-11-29
AU6108486A (en) 1987-03-19
EP0212966A2 (en) 1987-03-04
CA1260155A (en) 1989-09-26

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees