JPH04113415A - Storage of redundant constitution and its retrieving method - Google Patents
Storage of redundant constitution and its retrieving methodInfo
- Publication number
- JPH04113415A JPH04113415A JP23393690A JP23393690A JPH04113415A JP H04113415 A JPH04113415 A JP H04113415A JP 23393690 A JP23393690 A JP 23393690A JP 23393690 A JP23393690 A JP 23393690A JP H04113415 A JPH04113415 A JP H04113415A
- Authority
- JP
- Japan
- Prior art keywords
- storage device
- storage
- system storage
- redundant
- disk
- 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
- 238000003860 storage Methods 0.000 title claims abstract description 103
- 238000000034 method Methods 0.000 title claims description 18
- 230000014759 maintenance of location Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は冗長構成の記憶装置とこれの検索方法に関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a redundant storage device and a search method therefor.
従来の冗長構成の記憶装置とこれの検索方法は、例えは
、記憶装置としてディスク状の記憶媒体を使用するもの
では、第４図の従来の冗長構成の記憶装置の記憶形態お
よび検索方法を表す説明図に示すように、従来は、０系
記憶装置および］系記憶装置のディレクトリの格納位置
か、ディスク状の記憶媒体６］、、６６の一番外側の１
へラック６２゜６７に配置され、図示されていない外部
の処理装置からの領域確保要求に対して、同様に図示さ
れていない０系記憶装置用制御装置と］系記憶装置用制
御装置とか、各々０系記憶装置と１系記憶装置とのディ
スク状の記憶媒体６１．．６６の各々のティレフトりを
読んで空きエリアを検索し、外側のトラックから内側の
トラックへ順に（即ち、矢印６４．６９の示す方向に）
領域を確保する方法であり、処理装置からの読出要求に
対しては、０系記憶装置および１系記憶装置のいずれか
一方を指定し、指定された系の記憶装置用制御装置が、
記憶装置ディレクトリを読み出して、読取りヘッドをデ
ータ位置にシークしく例えは、０系記憶装置であれば、
矢印６５の方向に）データを読み出し、読み出した結果
を外部の処理装置に送る方法をとっていた。そして、こ
の読取りヘッドをデータ位置にシークする方向も、０系
記憶装置および１系記憶装置のいずれも同一であった。A conventional redundant storage device and its search method are, for example, a storage device that uses a disk-shaped storage medium as the storage device, as shown in FIG. As shown in the explanatory diagram, conventionally, the storage location of the directory of the 0-system storage device and the ]-system storage device, or the outermost 1 of the disk-shaped storage medium 6], .
In response to an area reservation request from an external processing device (not shown), the 0-system storage device control device and the ]-system storage device control device, which are also not shown, are arranged in racks 62 and 67. A disk-shaped storage medium 61 for a 0-system storage device and a 1-system storage device. ．． 66 to search for an empty area by reading each of the till lefts in order from the outer track to the inner track (i.e. in the direction indicated by arrows 64 and 69).
This is a method of securing an area. In response to a read request from a processing device, either the 0-system storage device or the 1-system storage device is specified, and the storage device control device of the specified system
If you read the storage directory and seek the read head to the data location, for example, if it is a 0-series storage device,
The method used was to read the data (in the direction of arrow 65) and send the read result to an external processing device. The direction in which this read head seeks to the data position is also the same for both the 0-series storage device and the 1-series storage device.
上述した従来の冗長構成の記憶装置とこれの検索方法は
、０系記憶装置と１系記憶装置とのデータの検索方法を
すべて同じにしているために、同じデータを検索するた
めに要する処理時間が、どちらの系を用いても同一とな
り、検索順序が後に位置しているデータに対する処理時
間は常に長くなってしまうという問題点かある。In the conventional redundant storage device and its search method described above, the data search method for the 0-system storage device and the 1-system storage device is the same, so the processing time required to search for the same data is shortened. However, no matter which system is used, the results are the same, and the processing time for data located later in the search order is always longer.
本発明の目的は、検索順序を異ならせた複数の記憶装置
を同時に検索することで全体としてデータ読出しに対す
る処理時間を短かくすることができる冗長構成の記憶装
置とこれの検索方法を提供するごとにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a storage device with a redundant configuration that can shorten the overall processing time for reading data by simultaneously searching a plurality of storage devices in different search orders, and a method for searching the same. It is in.
本発明の冗長構成の記憶装置は、冗長構成の記憶装置に
おいて、前記記憶装置の各々が複数の検索順序形態を有
する構成である。A storage device with a redundant configuration of the present invention is a storage device with a redundant configuration, in which each of the storage devices has a plurality of search order forms.
本発明の冗長構成の記憶装置の検索方法は、冗長構成の
記憶装置の検索方法において、前記記憶装置を制御する
制御装置は前記冗長構成の記憶装置の各々に相互に異な
る検索順序で呼出し制御を行い、先に該当する情報を出
力した記憶装置を制御動作に組込む構成である。A search method for a redundant storage device according to the present invention is a method for searching a redundant storage device, in which a control device that controls the storage device performs call control on each of the redundant storage devices in mutually different search orders. The configuration is such that the storage device that previously outputs the relevant information is incorporated into the control operation.
本発明の冗長構成の記憶装置の検索方法は、前記記憶装
置をディスク状の記憶媒体を使用して構成し、前記制御
装置は前記ディスク状の記憶媒体に対する書込み制御時
に前記ディスク状の記憶媒体ごとに各々の記憶領域の確
保順序を異ならせてもよい。In the redundant configuration storage device search method of the present invention, the storage device is configured using a disk-shaped storage medium, and the control device performs write control for each disk-shaped storage medium during write control to the disk-shaped storage medium. The order in which each storage area is secured may be made different.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例の記憶装置の記憶形態および
検索方法を表す説明図である。FIG. 1 is an explanatory diagram showing the storage format and search method of a storage device according to an embodiment of the present invention.
０系記憶装置および１系記憶装置共に、ディレクトリの
格納位置が、ディスク状の記憶媒体１１゜１６の一番外
側のトラック１２．１７に配置され、図示されていない
外部の処理装置からの領域確保要求に対して、同様に図
示されていない０系記憶装置用制御装置と１系記憶装置
用制御装置とが、それぞれＯ系記憶装置と１系記憶装置
とのディスク状の記憶媒体１１．１６の各々のディレク
トリを読んて空きエリアを検索し、０系記憶装置では矢
印１３の示す方向に外側のトラックから内側のトラック
へ順に領域を確保し、１系記憶装置では矢印１８の示す
方向に内側のトラックから外側のトラックへ順に領域を
確保するようになっている。In both the 0-series storage device and the 1-series storage device, the storage location of the directory is placed in the outermost track 12.17 of the disk-shaped storage medium 11° 16, and space is secured from an external processing device (not shown). In response to the request, a control device for the 0-system storage device and a control device for the 1-system storage device, also not shown, control the disk-shaped storage media 11.16 of the O-system storage device and the 1-system storage device, respectively. Each directory is read to search for a free area, and for 0-series storage devices, areas are secured in the direction shown by arrow 13 from the outer track to the inner track, and for 1-series storage devices, the area is secured in the direction shown by arrow 18 from the inner track. Areas are secured in order from the track to the outer tracks.
処理装置からの読出要求に対しては、０系記憶装置およ
び１系記憶装置のいずれも同時に起動され、両系の記憶
装置用制御装置が、それぞれ記憶装置ディレクトリを読
み出して、読取りヘッドをデータ位置にシークしく例え
ば、０系記憶装置であれば矢印１４の方向に、１系記憶
装置であれば矢印１９の方向に）データを読み出し、読
み出した結果を外部の処理装置に送る方法をとる。In response to a read request from the processing unit, both the 0-system storage device and the 1-system storage device are activated at the same time, and the storage device control devices of both systems each read the storage device directory and move the read head to the data position. For example, data is read in the direction of arrow 14 for a 0-series storage device, in the direction of arrow 19 for a 1-series storage device), and the read result is sent to an external processing device.
第２図は本発明の一実施例の処理装置を含むブロック図
である。FIG. 2 is a block diagram including a processing device according to an embodiment of the present invention.
処理装置２１は、０系記憶装置用制御装置２２と１系記
憶装置用制御装置２３とに接続し、Ｏ系記憶装置用制御
装置２２および１系記憶装置用制御装置２３は、それぞ
れ０系記憶装置２４および１系記憶装置２５と接続して
いる。The processing device 21 is connected to a 0-system storage device control device 22 and a 1-system storage device control device 23, and each of the O-system storage device control device 22 and the 1-system storage device control device 23 It is connected to the device 24 and the 1st system storage device 25.
次に動作について説明する。Next, the operation will be explained.
第３図は処理装置の流れ図である。FIG. 3 is a flowchart of the processing device.
ステップ（以下Ｓと記す）３１で処理装置に領域確保要
求であるか否かを判断し、領域確保要求である場合には
、Ｓ３２でＯ光記憶装置用制御装置および１系記憶装置
用制御装置に対して、領域確保要求を送信して処理を終
える。領域確保要求でない場合には、３３３て読出要求
であるか否かを判断し、続出要求である場合には、Ｓ３
２てＯ系記憶装置用制御装置および１系記憶装置用制御
装置に対して続出要求を送信し、Ｓ３５て続出終了を受
信するまて待ち、続出終了を受信すると８３６て読出終
了を送信したのか０系であるか１系であるかを判定し、
次に、Ｓ３７あるいはＳ３７て受信した系の記憶装置用
制御装置からテークを受は取り処理を終える。In step (hereinafter referred to as S) 31, it is determined whether or not the processing device is requested to secure an area. If it is a request to secure an area, in step S32, the controller for the O optical storage device and the controller for the 1-system storage device The process ends by sending an area reservation request to. If it is not an area reservation request, it is determined in step 333 whether or not it is a read request, and if it is a continuous request, it is determined in step S3
2. Sends a continuation request to the O-system storage device control device and the 1-system storage device control device, waits until the continuation end is received in S35, and then sends a read end request in S35. Determine whether it is 0 series or 1 series,
Next, in S37 or S37, the take is received from the storage device control device of the receiving system and the processing is completed.
上記説明は、冗長構成をＯ系および１系の２系統として
行ったか、３系統以上の冗長構成の場合にも適用可能で
ある。The above description is applicable to the case where the redundant configuration is made of two systems, the O system and the 1 system, or to a redundant configuration of three or more systems.
又、本発明の実施例として、ティスフ状の記憶媒体に適
用した例について説明したが、この発明は、ティスフ状
の記憶媒体以外の記憶媒体であっても、記憶内容の読出
しを順番に行う記憶媒体であれは、同様に適用可能であ
る。Further, as an embodiment of the present invention, an example in which the present invention is applied to a tissue-shaped storage medium has been described, but the present invention is also applicable to a storage medium other than a tissue-shaped storage medium, in which the stored contents are sequentially read out. The same applies to any medium.
以上説明したように、本発明は、記憶装置の各々か複数
の検索順序形態を有するが、あるいは制御装置が冗長構
成の記憶装置の各々に対し同時に相互に異なる検索順序
で呼出し制御を行うごとにより、全体としてテーク読出
しに対する処理時間を短かくすることがてきるという効
果が有る。As explained above, the present invention has a plurality of search order forms for each of the storage devices, or each time the control device simultaneously performs call control on each of the redundant storage devices in mutually different search orders. This has the effect that the overall processing time for take reading can be shortened.
第１図は本発明の一実施例の記憶装置の記憶形態および
検索方法を表す説明図、第２図は本発明の一実施例の処
理装置を含むブロック図、第３図は処理装置の流れ図、
第４図は従来の冗長構成の記憶装置の記憶形態および検
索方法を表す説明図である。
１１．１６・・・・・ティスフ状の記憶媒体、］。２１
７ ・・−一番外側のトラック、１３，１．４１８］。
９−・・・・矢印、２１・・・・・・処理装置、２２・
・・・・・０系記憶装置用制御装置、２３・・・・・・
１系記憶装置用制御装置、２４・・・・・０系記憶装置
、２５・・・・・・１系記憶装置。
代理人 弁理士 内 原 晋
（θ；ｊ；１ゝに“１１“Ｅ ノ１％に！ ）−９゜
（ｒ牽記憶装置）FIG. 1 is an explanatory diagram showing the storage format and search method of a storage device according to an embodiment of the present invention, FIG. 2 is a block diagram including a processing device according to an embodiment of the present invention, and FIG. 3 is a flowchart of the processing device. ,
FIG. 4 is an explanatory diagram showing the storage format and search method of a conventional redundant storage device. 11.16...tisf-shaped storage medium, ]. 21
7...-outermost track, 13,1.418]. 9-...arrow, 21...processing device, 22...
...0 system storage device control device, 23...
1-system storage device control device, 24...0-system storage device, 25...1-system storage device. Agent Patent attorney Susumu Uchihara (θ;
Claims (1)
が複数の検索順序形態を有することを特徴とする冗長構
成の記憶装置。 ２、冗長構成の記憶装置の検索方法において、前記記憶
装置を制御する制御装置は前記冗長構成の記憶装置の各
々に相互に異なる検索順序で呼出し制御を行い、先に該
当する情報を出力した記憶装置を制御動作に組込むこと
を特徴とする冗長構成の記憶装置の検索方法。 ３、前記記憶装置をディスク状の記憶媒体を使用して構
成し、前記制御装置は前記ディスク状の記憶媒体に対す
る書込み制御時に前記ディスク状の記憶媒体ごとに各々
の記憶領域の確保順序を異ならせることを特徴とする請
求項２記載の冗長構成の記憶装置の検索方法。Claims: 1. A storage device with a redundant configuration, wherein each of the storage devices has a plurality of search order types. 2. In a method for searching a storage device with a redundant configuration, the control device that controls the storage device performs call control on each of the storage devices in the redundant configuration in a mutually different search order, and searches the memory that outputs the corresponding information first. A search method for a storage device with a redundant configuration, characterized by incorporating the device into a control operation. 3. The storage device is configured using a disk-shaped storage medium, and the control device secures storage areas in a different order for each disk-shaped storage medium when controlling writing to the disk-shaped storage medium. 3. The method of searching for a redundant storage device according to claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23393690A JPH04113415A (en) | 1990-09-04 | 1990-09-04 | Storage of redundant constitution and its retrieving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23393690A JPH04113415A (en) | 1990-09-04 | 1990-09-04 | Storage of redundant constitution and its retrieving method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04113415A true JPH04113415A (en) | 1992-04-14 |
Family
ID=16962938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23393690A Pending JPH04113415A (en) | 1990-09-04 | 1990-09-04 | Storage of redundant constitution and its retrieving method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04113415A (en) |
-
1990
- 1990-09-04 JP JP23393690A patent/JPH04113415A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6363385B1 (en) | Method and apparatus for making independent data copies in a data processing system | |
| JP4252139B2 (en) | Storage system | |
| CA2223941C (en) | Reserved cylinder for scsi device write-back cache | |
| JP3714046B2 (en) | Virtual tape storage | |
| JPH06131233A (en) | Access method and library device for multi-file type storage medium | |
| JP2759920B2 (en) | Method and apparatus for operating a DASD peripheral data storage subsystem | |
| US5841598A (en) | Information recording/reproducing apparatus and data processing method | |
| JP2523715B2 (en) | Magnetic disk drive | |
| JPH04113415A (en) | Storage of redundant constitution and its retrieving method | |
| JPH04251421A (en) | Method for decreasing number of moving times of head/arm of disk drive in direction of diameter | |
| JP3555871B2 (en) | Disk array device | |
| JPH04205518A (en) | Disk device control system | |
| JP2000112669A (en) | File controller | |
| JPH08297917A (en) | Data copying system | |
| JP2541158B2 (en) | Information processing system | |
| JPH05173724A (en) | Magnetic tape storage device | |
| JP2002091707A (en) | File information managing method in storage medium library system | |
| JPH04191921A (en) | Data filling device | |
| JPH06110613A (en) | Information storage device controller | |
| JPS6041125A (en) | Control device of storage device | |
| JPH0514353Y2 (en) | ||
| JPH04111015A (en) | Information recorder | |
| JPH04165527A (en) | Method and device for recording and reproducing information | |
| JPH08263220A (en) | Data input and output device | |
| JPS6387690A (en) | Optical disk medium setting controller |