JPS5621263A - File control system - Google Patents

File control system

Info

Publication number
JPS5621263A
JPS5621263A JP9557779A JP9557779A JPS5621263A JP S5621263 A JPS5621263 A JP S5621263A JP 9557779 A JP9557779 A JP 9557779A JP 9557779 A JP9557779 A JP 9557779A JP S5621263 A JPS5621263 A JP S5621263A
Authority
JP
Japan
Prior art keywords
error
data
readout
control section
byte location
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
JP9557779A
Other languages
Japanese (ja)
Inventor
Yuji Ogawa
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 JP9557779A priority Critical patent/JPS5621263A/en
Publication of JPS5621263A publication Critical patent/JPS5621263A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To perform error check without giving any burden on the central processor, by obtaining the error byte location information of readout data including the error from the file in the channel control section and judging the propriety of error analysis.
CONSTITUTION: The readout data D1 from the magnetic disc unit 4 is converted into parallel data via the disc interface circuit 6, input to the ECC register 9, the presence of error in data and the byte location are detected with the error check to feed them to the data transfer control section 10. The control circuit 11 stores the channel command word among the readout request data from the central processing unit and error processing is made if there is any error in the data part requested.
COPYRIGHT: (C)1981,JPO&Japio
JP9557779A 1979-07-28 1979-07-28 File control system Pending JPS5621263A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9557779A JPS5621263A (en) 1979-07-28 1979-07-28 File control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9557779A JPS5621263A (en) 1979-07-28 1979-07-28 File control system

Publications (1)

Publication Number Publication Date
JPS5621263A true JPS5621263A (en) 1981-02-27

Family

ID=14141436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9557779A Pending JPS5621263A (en) 1979-07-28 1979-07-28 File control system

Country Status (1)

Country Link
JP (1) JPS5621263A (en)

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