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JPH03259320A - Striping area allocating system - Google Patents

Striping area allocating system

Info

Publication number
JPH03259320A
JPH03259320A JP5862690A JP5862690A JPH03259320A JP H03259320 A JPH03259320 A JP H03259320A JP 5862690 A JP5862690 A JP 5862690A JP 5862690 A JP5862690 A JP 5862690A JP H03259320 A JPH03259320 A JP H03259320A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
disk
file
block
means
virtual
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
JP5862690A
Inventor
Hidetoshi Mukaida
Seiichiro Naka
Original Assignee
Nec Corp
Tohoku Nippon Denki Software Kk
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

Links

Abstract

PURPOSE: To effectively use space by converting the request of input/output on a virtual disk to an input/output request on a real magnetic disk by a file managing means including a virtual disk area allocating means, and performing the input/output by a striping system.
CONSTITUTION: A file area allocation request with requested size from a user program 1 is written on a file constitutional block table 5 via the virtual disk allocating means 3 of the file managing means 2. At this time, a free block number to be allocated is stored in a virtual disk free block 6. When the input/ output request is issued from the user program 1 to the area of the virtual disk, the file managing means 2 designates a block number by referring to the file constitutional block table, and perform the input/output of the write of a file on the real disk device by the striping system. In such a way, it is possible to effectively use the space on the magnetic disk device.
COPYRIGHT: (C)1991,JPO&Japio
JP5862690A 1990-03-08 1990-03-08 Striping area allocating system Pending JPH03259320A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5862690A JPH03259320A (en) 1990-03-08 1990-03-08 Striping area allocating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5862690A JPH03259320A (en) 1990-03-08 1990-03-08 Striping area allocating system

Publications (1)

Publication Number Publication Date
JPH03259320A true true JPH03259320A (en) 1991-11-19

Family

ID=13089791

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5862690A Pending JPH03259320A (en) 1990-03-08 1990-03-08 Striping area allocating system

Country Status (1)

Country Link
JP (1) JPH03259320A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6088704A (en) * 1996-10-18 2000-07-11 Nec Corporation Parallel management system for a file data storage structure
JP2002091706A (en) * 2000-06-02 2002-03-29 Compaq Information Technologies Group Lp Virtual storage system
JP2005352535A (en) * 2004-06-08 2005-12-22 Ark Joho Systems:Kk Method of protecting data
JP2007502470A (en) * 2003-08-14 2007-02-08 コンペレント・テクノロジーズ The system and method of the virtual disk drive
JP2013157033A (en) * 2013-05-10 2013-08-15 Hitachi Ltd Storage device and method of controlling the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6088704A (en) * 1996-10-18 2000-07-11 Nec Corporation Parallel management system for a file data storage structure
JP2002091706A (en) * 2000-06-02 2002-03-29 Compaq Information Technologies Group Lp Virtual storage system
JP2007502470A (en) * 2003-08-14 2007-02-08 コンペレント・テクノロジーズ The system and method of the virtual disk drive
JP2011108258A (en) * 2003-08-14 2011-06-02 Compellent Technologies System and method of virtual disk drive
JP2005352535A (en) * 2004-06-08 2005-12-22 Ark Joho Systems:Kk Method of protecting data
JP2013157033A (en) * 2013-05-10 2013-08-15 Hitachi Ltd Storage device and method of controlling the same

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