JPS57174754A - Processing method using magnetic disk device - Google Patents

Processing method using magnetic disk device

Info

Publication number
JPS57174754A
JPS57174754A JP6003081A JP6003081A JPS57174754A JP S57174754 A JPS57174754 A JP S57174754A JP 6003081 A JP6003081 A JP 6003081A JP 6003081 A JP6003081 A JP 6003081A JP S57174754 A JPS57174754 A JP S57174754A
Authority
JP
Japan
Prior art keywords
magnetic disk
disk device
devices
information
identifier
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
JP6003081A
Other languages
Japanese (ja)
Inventor
Fusatake Ooi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6003081A priority Critical patent/JPS57174754A/en
Publication of JPS57174754A publication Critical patent/JPS57174754A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing

Abstract

PURPOSE:To realize the use of magnetic disk devices in a number exceeding the limitation of both the software and the hardware, by using the virtual magnetic disk devices which are obtained by virtually dividing a real magnetic disk device into an optional number of devices. CONSTITUTION:The virtual magnetic disk devices are obtained by virtually dividing a real magnetic disk device 3a into an optional number of devices, and the information of this virtual magnetic disk device is stored into a physical volume directory table provided within the device 3a. The information in all of the said directory tables is stored into a control table 4. Then the supervisor is called out to designate the identifier of the virtual magnetic disk device, and the use start request is given to retrieve the table 4. The information of the virtual magnetic disk device corresponding to the identifier is written into an idle record in a volume mount table 1a and a PUB table 2a respectively. The table 1a is retrieved by using the identifier as the key to obtain the pointer information to be given to the table 2a. This pointer information is designated to request an input/output to the supervisor.
JP6003081A 1981-04-21 1981-04-21 Processing method using magnetic disk device Pending JPS57174754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6003081A JPS57174754A (en) 1981-04-21 1981-04-21 Processing method using magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6003081A JPS57174754A (en) 1981-04-21 1981-04-21 Processing method using magnetic disk device

Publications (1)

Publication Number Publication Date
JPS57174754A true JPS57174754A (en) 1982-10-27

Family

ID=13130257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6003081A Pending JPS57174754A (en) 1981-04-21 1981-04-21 Processing method using magnetic disk device

Country Status (1)

Country Link
JP (1) JPS57174754A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59180644A (en) * 1983-03-28 1984-10-13 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン Division of memory
JPS61165153A (en) * 1984-12-26 1986-07-25 Fujitsu Ltd Semiconductor disk device
JPH02236612A (en) * 1989-03-10 1990-09-19 Sony Corp Disk selection control method
JPH052456A (en) * 1990-10-02 1993-01-08 Hitachi Ltd Information storing method for storing media and system therefor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59180644A (en) * 1983-03-28 1984-10-13 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン Division of memory
JPS61165153A (en) * 1984-12-26 1986-07-25 Fujitsu Ltd Semiconductor disk device
JPH02236612A (en) * 1989-03-10 1990-09-19 Sony Corp Disk selection control method
JPH052456A (en) * 1990-10-02 1993-01-08 Hitachi Ltd Information storing method for storing media and system therefor

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