JPS556678A - Pre-loading system for recording medium - Google Patents

Pre-loading system for recording medium

Info

Publication number
JPS556678A
JPS556678A JP7957978A JP7957978A JPS556678A JP S556678 A JPS556678 A JP S556678A JP 7957978 A JP7957978 A JP 7957978A JP 7957978 A JP7957978 A JP 7957978A JP S556678 A JPS556678 A JP S556678A
Authority
JP
Japan
Prior art keywords
units
recording medium
unit
recording
read
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
JP7957978A
Other languages
Japanese (ja)
Inventor
Satoru Kaneko
Sekio Ikeda
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 JP7957978A priority Critical patent/JPS556678A/en
Publication of JPS556678A publication Critical patent/JPS556678A/en
Pending legal-status Critical Current

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  • Automatic Tape Cassette Changers (AREA)

Abstract

PURPOSE: To shorten the time of access to a mass storage unit by selecting and mounting a recording medium which allows the present process to end in the shortest time when mounting the recording medium. required to be read or written on the pre-loading mechanism of the unit.
CONSTITUTION: The system consists of read and write unit D1 to D4, recording media m1 to m16, recording-medium storage MS, accessor AC, and transfer units X1 and X2 which data from a recording medium to another unit. Further, this system is provided with controller SC controlling units D1 to D4, media m1 to m16 and units X1 and X2, pre-loading mechanisms PL1 to PL4, and process lists LD1 to LD4 which correspond to units D1 to D4. To this system, the allocator device is connected which consists of process-list fetch circuit FT, regisers R1 to R4, decoder DEC, multipliers ML1 to ML3, adder AD, AND gate A and comparative storage unit C, and among units D1 and D4, a unit which completes its process in the shortest time is selected and assigned.
COPYRIGHT: (C)1980,JPO&Japio
JP7957978A 1978-06-30 1978-06-30 Pre-loading system for recording medium Pending JPS556678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7957978A JPS556678A (en) 1978-06-30 1978-06-30 Pre-loading system for recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7957978A JPS556678A (en) 1978-06-30 1978-06-30 Pre-loading system for recording medium

Publications (1)

Publication Number Publication Date
JPS556678A true JPS556678A (en) 1980-01-18

Family

ID=13693886

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7957978A Pending JPS556678A (en) 1978-06-30 1978-06-30 Pre-loading system for recording medium

Country Status (1)

Country Link
JP (1) JPS556678A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097443A (en) * 1983-10-31 1985-05-31 Fujitsu Ltd Control system of mass storage system
JPS61120236A (en) * 1984-11-16 1986-06-07 Hitachi Ltd Transfer method for loading and unloading information of recording medium of computer system
JPS62156743A (en) * 1985-12-28 1987-07-11 Hitachi Ltd Simultaneous data transferring controller
JPH04228147A (en) * 1990-05-21 1992-08-18 Internatl Business Mach Corp <Ibm> Automatic storage library

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6097443A (en) * 1983-10-31 1985-05-31 Fujitsu Ltd Control system of mass storage system
JPH0319567B2 (en) * 1983-10-31 1991-03-15 Fujitsu Ltd
JPS61120236A (en) * 1984-11-16 1986-06-07 Hitachi Ltd Transfer method for loading and unloading information of recording medium of computer system
JPS62156743A (en) * 1985-12-28 1987-07-11 Hitachi Ltd Simultaneous data transferring controller
JPH04228147A (en) * 1990-05-21 1992-08-18 Internatl Business Mach Corp <Ibm> Automatic storage library

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