JPH0296214A - Partial restoring system for memory medium - Google Patents
Partial restoring system for memory mediumInfo
- Publication number
- JPH0296214A JPH0296214A JP24803188A JP24803188A JPH0296214A JP H0296214 A JPH0296214 A JP H0296214A JP 24803188 A JP24803188 A JP 24803188A JP 24803188 A JP24803188 A JP 24803188A JP H0296214 A JPH0296214 A JP H0296214A
- Authority
- JP
- Japan
- Prior art keywords
- medium
- magnetic tape
- file
- saving
- media
- 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
Links
- 238000000034 method Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は記憶体部分復元方式に関し、特に多数のファイ
ルを媒体単位に退避しファイル単位に復元する記憶媒体
部分復元方式に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a storage medium partial restoration method, and particularly to a storage medium partial restoration method in which a large number of files are saved in units of media and restored in units of files.
従来のこの種の記憶媒体部分復元は、大容量記憶媒体が
媒体単位に退避された複数巻と磁気テープ媒体を第１春
目より順次に検索して当該ファイルの記憶位置を求めた
後に行っていた。Conventionally, this type of partial restoration of a storage medium is performed after the storage location of the file in question is determined by sequentially searching the multiple volumes and magnetic tape media in which the large-capacity storage medium has been saved in units of media, starting from the first spring. Ta.
上述した従来の記憶媒体部分復元方式は、ファイル単位
の部分復元時に磁気テープ媒体を１巻目から順次検索す
るため、当該ファイルの磁気テープ上の記録位置によっ
ては、退避した全ての磁気テープ媒体を読む必要があり
検索に長時間を要していた。The conventional storage medium partial restoration method described above sequentially searches the magnetic tape medium from the first volume when restoring files in units of files, so depending on the recording position of the file on the magnetic tape, all the evacuated magnetic tape media may be It took a long time to search because it required reading.
本発明の記憶媒体部分復元方式は、多数のファイルを含
む大容量記憶媒体上のデータを媒体単位に複数巻の磁気
テープ媒体に一括退避する媒体退避手段と、退避された
データをファイル単位に前記大容量記憶媒体へ復元する
媒体部分復元手段とを有する記憶媒体部分復元方式にお
いて、退避された磁気テープ媒体の媒体識別名および当
該磁気テープ媒体上の記録位置を含むファイル退避情報
を記憶するための退避情報記憶手段と、前記退避時に前
記媒体退避手段からの指示により前記退避情報記憶手段
上に前記ファイル退避情報を記録する退避情報書込手段
と、
前記復元時に前記媒体部分復元手段からの指示により指
定されたファイルのファイル退避情報を前記退避情報記
憶手段から読み出す退避情報読出し手段と、
読出されたファイル退避情報を基に当該ファイルの磁気
テープ媒体上の記録位置に位置付けする磁気テープ位置
付は手段とを設けたことを特徴とする。The storage medium partial restoration method of the present invention includes a medium saving means that collectively saves data on a large capacity storage medium containing a large number of files to a plurality of volumes of magnetic tape media in units of media; In a storage medium partial restoration method having a medium partial restoration means for restoring to a large capacity storage medium, a method for storing file saving information including a medium identification name of a saved magnetic tape medium and a recording position on the magnetic tape medium. evacuation information storage means; evacuation information writing means for recording the file evacuation information on the evacuation information storage means according to instructions from the medium evacuation means during the evacuation; and evacuation information writing means for recording the file evacuation information on the evacuation information storage means according to instructions from the medium partial restoration means during the restoration. evacuation information reading means for reading file evacuation information of a designated file from the evacuation information storage means; and magnetic tape positioning means for positioning the file at a recording position on the magnetic tape medium based on the read file evacuation information. It is characterized by having the following.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図を参照すると、本発明の一実施例は、媒体退避手
段１と、退避情報書込手段２と、退避情報記憶手段３と
、退避情報読出し手段４と、媒体部分復元手段５と、磁
気テープ位置付は手段６と、大容量記憶媒体７と、磁気
テープ媒体８，９．１０とから構成されている。Referring to FIG. 1, one embodiment of the present invention includes a medium saving means 1, a saving information writing means 2, a saving information storing means 3, a saving information reading means 4, a medium partial restoring means 5, The magnetic tape positioning means 6, a mass storage medium 7, and magnetic tape media 8, 9.10.
次に本発明の動作について説明する。Next, the operation of the present invention will be explained.
媒体退避手段ｌは、大容量記憶媒体７を媒体単位に磁気
テープ媒体８，９．１０に退避する際、大容量記憶媒体
７上の各ファイルのデータを退避した磁気テープ媒体の
媒体識別子と磁気テープ媒体８，９．１０上の記録位置
を得て退避情報書込み手段２に退避情報の書込みを指示
する。退避情報書き込み手段２は、退避情報記憶手段３
に退避情報を書き込む。When saving the large-capacity storage medium 7 to the magnetic tape media 8, 9, 9, 10 in units of media, the medium saving means 1 saves the data of each file on the large-capacity storage medium 7 to the magnetic tape medium and the medium identifier of the magnetic tape medium. The recording position on the tape medium 8, 9, 10 is obtained and the save information writing means 2 is instructed to write the save information. The evacuation information writing means 2 is the evacuation information storage means 3
Write evacuation information to.
大容量記憶媒体７のファイル単位の部分復元時には、媒
体部分復元手段５は、まず指定されたファイルの退避情
報の読出しを退避情報読出し手段４に指示する。退避情
報読出し手段４は、指定されたファイルの退避情報を退
避情報記憶手段３より得て媒体部分復元手段５へ渡す。When partially restoring the mass storage medium 7 in file units, the medium partial restoring means 5 first instructs the saving information reading means 4 to read the saving information of the designated file. The save information reading means 4 obtains the save information of the designated file from the save information storage means 3 and passes it to the medium partial restoring means 5.
媒体部分復元手段５は、得られたファイル退避情報中よ
り磁気テープ媒体８，９．１０の媒体識別子と記録位置
を得て、磁気テープ位置付は手段６に退避データの先頭
への磁気テープの位置付けを指示する。The medium part restoring means 5 obtains the medium identifiers and recording positions of the magnetic tape media 8, 9, and 10 from the obtained file saving information, and the magnetic tape positioning means 6 assigns the magnetic tape to the beginning of the saved data. Instruct positioning.
磁気テープ位置付は手段６は、得られたファイル退避情
報を用いて磁気テープ媒体８，９．１０を順次検索する
ことなく退避データの先頭への位置付けを行う。この後
、媒体部分復元手段５は磁気テープ媒体８．９．１０よ
り退避データを得て大容量記憶媒体７上に復元する。The magnetic tape positioning means 6 uses the obtained file saving information to position the saved data to the beginning without sequentially searching the magnetic tape media 8, 9, 10. Thereafter, the medium partial restoration means 5 obtains the saved data from the magnetic tape medium 8.9.10 and restores it onto the mass storage medium 7.
ｒ発明の効果〕
以北説明したように本発明は、ファイルの退避データへ
の位置付けを、あらかじめ記憶しておいた磁気テープ媒
体の媒体識別子および記録位置を用いて行うため、媒体
の部分復元の際の処理時間が短縮される効果がある。[Effects of the Invention] As explained above, the present invention positions files in saved data using the medium identifier and recording position of the magnetic tape medium that have been stored in advance. This has the effect of shortening the processing time.
第１図は本発明の一実施例の構成図を示す。
１・・・媒体退避手段、２・・・退避情報書込み手段、
３・・・退避情報記憶手段、４・・・退避情報読出し手
段、５・・・媒体部分復元手段、６・・・磁気テープ位
置付は手段、７・・・大容量記憶媒体、８，９．１０・
・・磁気テープ媒体。FIG. 1 shows a configuration diagram of an embodiment of the present invention. 1... Medium saving means, 2... Saving information writing means,
3... Evacuation information storage means, 4... Evacuation information reading means, 5... Medium partial restoration means, 6... Magnetic tape positioning means, 7... Mass storage medium, 8, 9 .10・
...magnetic tape medium.
Claims (1)
単位に複数巻の磁気テープ媒体に一括退避する媒体退避
手段と、退避されたデータをファイル単位に前記大容量
記憶媒体へ復元する媒体部分復元手段とを有する記憶媒
体部分復元方式において、 退避された磁気テープ媒体の媒体識別名および当該磁気
テープ媒体上の記録位置を含むファイル退避情報を記憶
するための退避情報記憶手段と、前記退避時に前記媒体
退避手段からの指示により前記退避情報記憶手段上に前
記ファイル退避情報を記録する退避情報書込手段と、 前記復元時に前記媒体部分復元手段からの指示により指
定されたファイルのファイル退避情報を前記退避情報記
憶手段から読み出す退避情報読出し手段と、 読出されたファイル退避情報を基に当該ファイルの磁気
テープ媒体上の記録位置に位置付けする磁気テープ位置
付け手段とを設けたことを特徴とする記憶媒体微分復元
方式。[Scope of Claims] A medium saving means for collectively saving data on a large capacity storage medium containing a large number of files to a plurality of volumes of magnetic tape media in units of media, and the large capacity storage medium in which the saved data is saved in units of files. In the storage medium partial restoration method, the storage medium partial restoration method includes a medium partial restoration means for restoring data to an evacuated magnetic tape medium, and an evacuation information storage means for storing file evacuation information including a medium identification name of an evacuated magnetic tape medium and a recording position on the magnetic tape medium. and an evacuation information writing means for recording the file evacuation information on the evacuation information storage means according to an instruction from the medium evacuation means at the time of the evacuation, and a file designated by an instruction from the medium partial restoration means at the time of the restoration. and a magnetic tape positioning means for positioning the file at a recording position on the magnetic tape medium based on the read file saving information. Features storage media differential restoration method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24803188A JPH0296214A (en) | 1988-09-30 | 1988-09-30 | Partial restoring system for memory medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24803188A JPH0296214A (en) | 1988-09-30 | 1988-09-30 | Partial restoring system for memory medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0296214A true JPH0296214A (en) | 1990-04-09 |
Family
ID=17172170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24803188A Pending JPH0296214A (en) | 1988-09-30 | 1988-09-30 | Partial restoring system for memory medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0296214A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05119930A (en) * | 1991-10-24 | 1993-05-18 | Chugoku Nippon Denki Software Kk | System for recovering fault of auxiliary storage device |
| US5522037A (en) * | 1993-09-20 | 1996-05-28 | Fujitsu Limited | Backup control apparatus and method of data processing system |
-
1988
- 1988-09-30 JP JP24803188A patent/JPH0296214A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05119930A (en) * | 1991-10-24 | 1993-05-18 | Chugoku Nippon Denki Software Kk | System for recovering fault of auxiliary storage device |
| US5522037A (en) * | 1993-09-20 | 1996-05-28 | Fujitsu Limited | Backup control apparatus and method of data processing system |
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