JPS5736355A - Disk controlling equipment - Google Patents

Disk controlling equipment

Info

Publication number
JPS5736355A
JPS5736355A JP11069580A JP11069580A JPS5736355A JP S5736355 A JPS5736355 A JP S5736355A JP 11069580 A JP11069580 A JP 11069580A JP 11069580 A JP11069580 A JP 11069580A JP S5736355 A JPS5736355 A JP S5736355A
Authority
JP
Japan
Prior art keywords
sector
buffer
data transfer
circuit
buffers
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.)
Pending
Application number
JP11069580A
Other languages
Japanese (ja)
Inventor
Osami Yatsuse
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP11069580A priority Critical patent/JPS5736355A/en
Publication of JPS5736355A publication Critical patent/JPS5736355A/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Abstract

PURPOSE:To simultaneously perform data transfer processing of the disk equipment and the system bus so that the processing time is reduced and correction of data errors is easily made, by dividing a sector buffer which can read and write randomly, into two lines, each of which can store information for one sector. CONSTITUTION:To the internal bus of a disk controlling equipment, a processor 19 which controls data transfer and an error correcting code analyzing circuit 20 are connected, and sector buffers 11 and 12 which can read and write randomly, are connected to the bus. Moreover, a buffer changeover circuit 17 which changes over the control of buffers 11 and 12 at an interval which is equal to the sector processing time, is connected to each buffer 11 and 12, and the buffers 11 and 12 are alternately used based on the output of the circuit 17. The data transfer processing of one sector analyzed at the circuit 20 is synchronized to the data transfer processing between the buffer 12 and the system bus, while the transferred data from the disk equipment are successively stored in the buffer 11, and, when an error is detected, the error is corrected by the analysis information.
JP11069580A 1980-08-12 1980-08-12 Disk controlling equipment Pending JPS5736355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11069580A JPS5736355A (en) 1980-08-12 1980-08-12 Disk controlling equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11069580A JPS5736355A (en) 1980-08-12 1980-08-12 Disk controlling equipment

Publications (1)

Publication Number Publication Date
JPS5736355A true JPS5736355A (en) 1982-02-27

Family

ID=14542102

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11069580A Pending JPS5736355A (en) 1980-08-12 1980-08-12 Disk controlling equipment

Country Status (1)

Country Link
JP (1) JPS5736355A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6020237A (en) * 1983-07-14 1985-02-01 Nec Corp Disk controller
JPS60121080A (en) * 1983-12-02 1985-06-28 Honda Motor Co Ltd Material to be welded guiding device of seam welding machine
JPS63113623A (en) * 1986-10-30 1988-05-18 Nec Corp Sector buffer control system
JPH0212326A (en) * 1988-06-29 1990-01-17 Nec Corp Disk controller
US6631443B1 (en) 1990-02-26 2003-10-07 Hitachi, Ltd. Disk storage system having capability for performing parallel read operation
US7861034B2 (en) 1990-02-26 2010-12-28 Hitachi, Ltd. Load distribution of multiple disks

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6020237A (en) * 1983-07-14 1985-02-01 Nec Corp Disk controller
JPS60121080A (en) * 1983-12-02 1985-06-28 Honda Motor Co Ltd Material to be welded guiding device of seam welding machine
JPS6261394B2 (en) * 1983-12-02 1987-12-21 Honda Motor Co Ltd
JPS63113623A (en) * 1986-10-30 1988-05-18 Nec Corp Sector buffer control system
JPH0212326A (en) * 1988-06-29 1990-01-17 Nec Corp Disk controller
US6631443B1 (en) 1990-02-26 2003-10-07 Hitachi, Ltd. Disk storage system having capability for performing parallel read operation
US6938125B2 (en) 1990-02-26 2005-08-30 Hitachi, Ltd. Storage system with data prefetch function
US7861034B2 (en) 1990-02-26 2010-12-28 Hitachi, Ltd. Load distribution of multiple disks

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