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JPH05341919A - System for restoring medium of disk device - Google Patents

System for restoring medium of disk device

Info

Publication number
JPH05341919A
JPH05341919AJP4150195AJP15019592AJPH05341919AJP H05341919 AJPH05341919 AJP H05341919AJP 4150195 AJP4150195 AJP 4150195AJP 15019592 AJP15019592 AJP 15019592AJP H05341919 AJPH05341919 AJP H05341919A
Authority
JP
Japan
Prior art keywords
volume
description area
data
area
content description
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.)
Withdrawn
Application number
JP4150195A
Other languages
Japanese (ja)
Inventor
Mitsuru Yoshida
満 吉田
Kazuo Inuzuka
和男 犬塚
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
NEC Solution Innovators Ltd
Original Assignee
NEC Corp
NEC Solution Innovators 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, NEC Solution Innovators LtdfiledCriticalNEC Corp
Priority to JP4150195ApriorityCriticalpatent/JPH05341919A/en
Publication of JPH05341919ApublicationCriticalpatent/JPH05341919A/en
Withdrawnlegal-statusCriticalCurrent

Links

Abstract

PURPOSE:To easily restore a disk medium by making a volume contents description area dual at the time of normal data write other than volume initialization. CONSTITUTION:This system consists of a disk medium 1, a volume initializing means 2, a first copy means 3, a data writing means 4, and a second copy means 5. This disk medium 1 includes a first volume contents description area 11, a second volume contents description area 12, and a data area 13. If contents of the volume contents description area VTOC(1) 11 of the disk medium 1 where data is already written in the data area 13 are initialized or broken by operator's erroneous start of the volume initializing means 2 or some other cause, the operator starts the second copy means 5 to copy contents of the VTOC(2) 12 to the VTOC(1) 11, and thereby, the volume contents description area VTOC(1) 11 is restored.

Description

Translated fromJapanese
【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はディスク装置(磁気/電
子/光)の媒体復旧システムに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medium recovery system for a disk device (magnetic / electronic / optical).

【0002】[0002]

【従来の技術】従来のディスク装置の媒体復旧システム
は、記録媒体のボリューム内容記述領域(VTOC)の
内容が誤ったボリューム初期化操作または何らかの原因
で破壊された場合、その媒体を復旧する為には以下のよ
うに行なっていた。即ち、通常の読出し機構とは別に保
守用に用意された物理的な記録単位の読出し機構を用い
て、媒体全体を物理的な記録形式に従って読出し,印字
用紙に印刷出力するいわゆるボリュームダンプを行う。
次に記録情報内容の論理的なつながりを見て、論理的な
記録単位、即ちファイルの先頭および最後の物理的記録
単位を見出す。
2. Description of the Related Art A conventional medium recovery system for a disk device is for recovering a medium if the contents of a volume content description area (VTOC) of a recording medium is destroyed by an erroneous volume initialization operation or for some reason. Performed as follows. That is, a so-called volume dump is performed in which a physical recording unit reading mechanism prepared for maintenance is used in addition to a normal reading mechanism to read the entire medium in accordance with the physical recording format and print out on a printing sheet.
Next, a logical recording unit, that is, the first and last physical recording units of the file are found by looking at the logical connection of the recorded information contents.

【0003】次に全てのファイルにつき、上記の先頭お
よび最後の物理的記録単位の位置と長さに関する情報と
を得て、ボリューム内容記述領域に書込むべき内容をデ
ータとして再度組立てた後、保守用に用意された物理的
な記録単位の書込み機構により、前記データをボリュー
ム内容記述領域に書込む。以上の手順により破壊された
ボリューム内容基準領域(以下VTOCという)復元し
て、ディスク媒体も復旧していた。
Next, for all files, information about the positions and lengths of the first and last physical recording units is obtained, the contents to be written in the volume contents description area are reassembled as data, and then the maintenance is performed. The data is written in the volume content description area by the physical recording unit writing mechanism prepared for the above. The volume content reference area (hereinafter referred to as VTOC) destroyed by the above procedure was restored and the disk medium was also restored.

【0004】[0004]

【発明が解決しようとする課題】以上説明したように、
従来のディスク装置の媒体復旧システムは、ボリューム
内容記述領域を復旧する為に全媒体のボリュームダンプ
を行うので、近年の大容量ディスク記録媒体の場合には
多量の印字用紙と時間を要するという問題点があった。
更にボリューム内容記述領域のデータ内容を人手で組立
てて書込処理していた為、誤りが混入し易いという問題
点があった。
As described above,
Since the conventional medium recovery system of the disk device dumps the volume of all the media in order to recover the volume content description area, there is a problem that a large amount of printing paper and time are required in the case of the recent large capacity disk recording medium. was there.
Further, since the data contents of the volume contents description area are manually assembled and written, there is a problem that errors are easily mixed.

【0005】[0005]

【課題を解決するための手段】本発明のディスク媒体の
復旧システムは、第1および第2のボリューム内容記述
領域とデータ書込領域とを持つディスク媒体と、前記デ
ィスク媒体のボリューム初期化に際して前記第1のボリ
ューム内容記述領域のみに初期情報を書込むボリューム
初期化手段と、前記第1のボルーム内容記述領域を前記
第2のボリューム内容記述領域に複写する第1の複写手
段と前記データ書込領域へのデータ書込時に該データの
書込位置と長さに関する情報を前記第1のボリューム内
容記述領域に書込んだ後、第1のボリューム内容記述領
域と第2のボリューム内容記述領域の内容を同一化する
データ部書込手段と、前記第2のボリューム内容記述領
域を前記第1のボリューム内容記述領域に複写する第2
の複写手段とを備えている。
DISCLOSURE OF THE INVENTION A disk medium restoration system according to the present invention comprises a disk medium having first and second volume content description areas and a data write area, and a volume medium for initializing the volume of the disk medium. Volume initialization means for writing initial information only to the first volume content description area; first copying means for copying the first volume content description area to the second volume content description area; and the data writing. Contents of the first volume content description area and the second volume content description area after information about the write position and length of the data is written in the first volume content description area when writing data to the area And a second part for copying the second volume content description area to the first volume content description area.
And a copying means.

【0006】[0006]

【実施例】次に本発明について図面を参照して説明す
る。
The present invention will be described below with reference to the drawings.

【0007】図1は本発明の一実施例を示すブロック図
であり、ディスク媒体1と、ボリューム初期化手段2
と、第1の複写手段3とデータ書込手段4と、第2の複
写手段5とから構成される。
FIG. 1 is a block diagram showing an embodiment of the present invention, which is a disk medium 1 and a volume initialization means 2.
And a first copying unit 3, a data writing unit 4, and a second copying unit 5.

【0008】ディスク媒体1は第1のボリューム内容記
述領域11と第2のボルーム内容記述領域12と、デー
タ領域13を含んでいる。
The disk medium 1 includes a first volume content description area 11, a second volume content description area 12, and a data area 13.

【0009】次にデータ書込手段4での処理について、
図2を参照して説明する。データ書込手段4は、ステッ
プ41でデータ書込を開始し、ステップ42でVTOC
(1)11を読出してデータを書込む際の管理情報を得
て、ステップ43で該管理情報に従ってデータ領域13
へデータを書込む。次にステップ44で書込んだデータ
の管理情報をVTOC(1)11に書込んで更新する。
次に第1の複写手段3を起動することにより、VTOC
(1)11の内容をVTOC(2)12に複写する。
Next, regarding the processing in the data writing means 4,
This will be described with reference to FIG. The data writing means 4 starts data writing in step 41, and in step 42 VTOC.
(1) Obtain management information for reading 11 and writing data, and in step 43, according to the management information, the data area 13
Write data to. Next, the management information of the data written in step 44 is written in the VTOC (1) 11 and updated.
Next, by activating the first copying means 3, the VTOC
The contents of (1) 11 are copied to VTOC (2) 12.

【0010】データ領域13にデータが書込まれた状態
のディスク媒体1に対して、操作者が誤ってボリューム
初期化手段2を起動し、あるいは他の何らかの原因で、
ボリューム内容記述領域VTOC(1)11の内容が初
期化あるいは破壊されたとする。操作者は第2の複写手
段5を起動して、VTOC(2)12の内容をVTOC
(1)11に複写することにより、ボリューム内容基準
領域VTOC(1)11を回復できる。
For the disk medium 1 in which data is written in the data area 13, the operator mistakenly activates the volume initialization means 2, or for some other reason,
It is assumed that the content of the volume content description area VTOC (1) 11 has been initialized or destroyed. The operator activates the second copying unit 5 to change the contents of the VTOC (2) 12 to the VTOC.
The volume content reference area VTOC (1) 11 can be restored by copying it to (1) 11.

【0011】[0011]

【発明の効果】以上説明したように本発明は、ボリュー
ム初期化時以外の通常のデータ書込時には、ボリューム
内容記述領域が二重化されたので、誤ってボリューム初
期化が行われた場合、またはボリューム内容記述領域が
破壊された場合にも、ボリューム内容記述領域の複写指
示を与えることにより容易にディスク媒体が復旧できる
という効果がある。
As described above, according to the present invention, the volume content description area is duplicated at the time of normal data writing other than the volume initialization. Even if the content description area is destroyed, the disk medium can be easily restored by giving a copy instruction of the volume content description area.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例のブロック図である。FIG. 1 is a block diagram of an embodiment of the present invention.

【図2】図1に示したデータ書込手段の処理を示すフロ
ーチャートである。
FIG. 2 is a flowchart showing a process of a data writing unit shown in FIG.

【符号の説明】[Explanation of symbols]

1 ディスク媒体 2 ボルーム初期化手段 3 第1の複写手段 4 データ書込手段 5 第2の複写手段 DESCRIPTION OF SYMBOLS 1 Disk medium 2 Bolom initialization means 3 First copying means 4 Data writing means 5 Second copying means

Claims (1)

Translated fromJapanese
【特許請求の範囲】[Claims]【請求項1】 第1および第2のボリューム内容記述領
域とデータ書込領域とを持つディスク媒体と、前記ディ
スク媒体のボリューム初期化に際して前記第1のボリュ
ーム内容記述領域のみに初期情報を書込むボリューム初
期化手段と、前記第1のボルーム内容記述領域を前記第
2のボリューム内容記述領域に複写する第1の複写手段
と前記データ書込領域へのデータ書込時に該データの書
込位置と長さに関する情報を前記第1のボリューム内容
記述領域に書込んだ後、第1のボリューム内容記述領域
と第2のボリューム内容記述領域の内容を同一化するデ
ータ部書込手段と、前記第2のボリューム内容記述領域
を前記第1のボリューム内容記述領域に複写する第2の
複写手段とを含むことを特徴とするディスク装置の媒体
復旧システム。
1. A disk medium having first and second volume content description areas and a data writing area, and initial information is written only to the first volume content description area when the volume of the disk medium is initialized. Volume initialization means, first copying means for copying the first volume content description area to the second volume content description area, and a writing position of the data when writing data to the data writing area. A data section writing means for making the contents of the first volume content description area and the second volume content description area the same after writing the information about the length in the first volume content description area; And a second copying means for copying the volume content description area of the first volume content description area to the first volume content description area.
JP4150195A1992-06-101992-06-10System for restoring medium of disk deviceWithdrawnJPH05341919A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP4150195AJPH05341919A (en)1992-06-101992-06-10System for restoring medium of disk device

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP4150195AJPH05341919A (en)1992-06-101992-06-10System for restoring medium of disk device

Publications (1)

Publication NumberPublication Date
JPH05341919Atrue JPH05341919A (en)1993-12-24

Family

ID=15491597

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP4150195AWithdrawnJPH05341919A (en)1992-06-101992-06-10System for restoring medium of disk device

Country Status (1)

CountryLink
JP (1)JPH05341919A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
WO2011141434A1 (en)*2010-05-132011-11-17International Business Machines CorporationPreserving an existing volume map in re-initializing a data storage volume

Cited By (2)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
WO2011141434A1 (en)*2010-05-132011-11-17International Business Machines CorporationPreserving an existing volume map in re-initializing a data storage volume
US8782360B2 (en)2010-05-132014-07-15International Business Machines CorporationPreserving an existing volume map in re-initializing a data storage volume

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Legal Events

DateCodeTitleDescription
A300Withdrawal of application because of no request for examination

Free format text:JAPANESE INTERMEDIATE CODE: A300

Effective date:19990831


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