JPS5510683A - Magnetic disc unit - Google Patents

Magnetic disc unit

Info

Publication number
JPS5510683A
JPS5510683A JP8386878A JP8386878A JPS5510683A JP S5510683 A JPS5510683 A JP S5510683A JP 8386878 A JP8386878 A JP 8386878A JP 8386878 A JP8386878 A JP 8386878A JP S5510683 A JPS5510683 A JP S5510683A
Authority
JP
Japan
Prior art keywords
unit
magnetic
read
interface
write
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
JP8386878A
Other languages
Japanese (ja)
Inventor
Nakahiko Matsuo
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 JP8386878A priority Critical patent/JPS5510683A/en
Publication of JPS5510683A publication Critical patent/JPS5510683A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)

Abstract

PURPOSE: To shorten the time until the restart of operation by building a magnetic tape unit for recovery from a fault in a magnetic disc unit.
CONSTITUTION: When a write instruction is sent from the side of the central processor and channel unit to magnetic disc unit 7, data is written in one route of interface line 15, interface control circuit 12, read/write circuit 10, and magnetic-disc-unit driving part 8 or in the other route of interface 15, interface control circuit 12, read/write circuit 11, and magnetic-disc-unit driving part 9 and at the same time, writing to magnetic tape unit 15 or updata operation is carried out in the route of interface 15, interface control circuit 12, read/write circuit 10, read/write change- over and data converter circuit 13, and magnetic tape unit 15.
COPYRIGHT: (C)1980,JPO&Japio
JP8386878A 1978-07-10 1978-07-10 Magnetic disc unit Pending JPS5510683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8386878A JPS5510683A (en) 1978-07-10 1978-07-10 Magnetic disc unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8386878A JPS5510683A (en) 1978-07-10 1978-07-10 Magnetic disc unit

Publications (1)

Publication Number Publication Date
JPS5510683A true JPS5510683A (en) 1980-01-25

Family

ID=13814636

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8386878A Pending JPS5510683A (en) 1978-07-10 1978-07-10 Magnetic disc unit

Country Status (1)

Country Link
JP (1) JPS5510683A (en)

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