JPS54134525A - Error recovery control system for storge medium - Google Patents

Error recovery control system for storge medium

Info

Publication number
JPS54134525A
JPS54134525A JP4244378A JP4244378A JPS54134525A JP S54134525 A JPS54134525 A JP S54134525A JP 4244378 A JP4244378 A JP 4244378A JP 4244378 A JP4244378 A JP 4244378A JP S54134525 A JPS54134525 A JP S54134525A
Authority
JP
Japan
Prior art keywords
storage medium
records
auxiliary storage
cell
central processing
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
JP4244378A
Other languages
Japanese (ja)
Inventor
Masao Managaki
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 JP4244378A priority Critical patent/JPS54134525A/en
Publication of JPS54134525A publication Critical patent/JPS54134525A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the load of a central processing unit, a main memory and a channel by using a specific work memory on an auxiliary storage medium controller to perform the control by which the record destruction dependent upon the process erroneous processing is prevented.
CONSTITUTION: When a write instruction is issued from a central processing unit to write records, which were updated by a process, to original positions on auxiliary storage medium (source cell) 31 in respect to records which are read from auxiliary storage medium 31, where records are stored according to the request of the process, into a main memory, auxiliary storage medium controller 30 which accepted this instruction interprets the instruction independently of the central processing uint and does not write records onto source cell 31 but writes records onto updated record saving storage medium (work cell) 32 which can be controlled by the medium controller. In case of the abnormal completion of the process, the work cell is released; and in case of the normal completion, the record group is read out from the work cell and is written to original positions on the source cell, and the work cell is released.
COPYRIGHT: (C)1979,JPO&Japio
JP4244378A 1978-04-10 1978-04-10 Error recovery control system for storge medium Pending JPS54134525A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4244378A JPS54134525A (en) 1978-04-10 1978-04-10 Error recovery control system for storge medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4244378A JPS54134525A (en) 1978-04-10 1978-04-10 Error recovery control system for storge medium

Publications (1)

Publication Number Publication Date
JPS54134525A true JPS54134525A (en) 1979-10-19

Family

ID=12636210

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4244378A Pending JPS54134525A (en) 1978-04-10 1978-04-10 Error recovery control system for storge medium

Country Status (1)

Country Link
JP (1) JPS54134525A (en)

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