JPS6442750A - System for double writing file - Google Patents

System for double writing file

Info

Publication number
JPS6442750A
JPS6442750A JP62200484A JP20048487A JPS6442750A JP S6442750 A JPS6442750 A JP S6442750A JP 62200484 A JP62200484 A JP 62200484A JP 20048487 A JP20048487 A JP 20048487A JP S6442750 A JPS6442750 A JP S6442750A
Authority
JP
Japan
Prior art keywords
sector
data
memory
writing operation
data buffer
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
JP62200484A
Other languages
Japanese (ja)
Inventor
Kunio Nakamura
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62200484A priority Critical patent/JPS6442750A/en
Publication of JPS6442750A publication Critical patent/JPS6442750A/en
Pending legal-status Critical Current

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  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

PURPOSE:To decrease the time of writing operation by providing two pairs of data buffer memories to execute an addressing in every other sector so that an address can be made plus one and to store data for one sector and dividing them into the memory for writing operation and the memory for reading operation. CONSTITUTION:The addressing is executed so that the respective sectors of one track and the other track are respectively made plus one in every other sector. Then, the addresses of the sectors to correspond to the respective tracks, to which the same data are written, are physically dislocated for one sector part mutually and the same sector address is obtained. The two pairs of data buffer memories are equipped to have a data storing capacity for one sector and they are divided into the memory for the data writing operation and the memory for the data reading operation. Then, in each sector processing, the writing operation to the data buffer memory and the reading operation are controlled by a magnetic disk control device 2 with being repeated. Thus, the time of the writing operation can be reduced.
JP62200484A 1987-08-11 1987-08-11 System for double writing file Pending JPS6442750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62200484A JPS6442750A (en) 1987-08-11 1987-08-11 System for double writing file

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62200484A JPS6442750A (en) 1987-08-11 1987-08-11 System for double writing file

Publications (1)

Publication Number Publication Date
JPS6442750A true JPS6442750A (en) 1989-02-15

Family

ID=16425080

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62200484A Pending JPS6442750A (en) 1987-08-11 1987-08-11 System for double writing file

Country Status (1)

Country Link
JP (1) JPS6442750A (en)

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