JPS58149552A - Prestaging system of mass storage in virtual computer system - Google Patents

Prestaging system of mass storage in virtual computer system

Info

Publication number
JPS58149552A
JPS58149552A JP57032824A JP3282482A JPS58149552A JP S58149552 A JPS58149552 A JP S58149552A JP 57032824 A JP57032824 A JP 57032824A JP 3282482 A JP3282482 A JP 3282482A JP S58149552 A JPS58149552 A JP S58149552A
Authority
JP
Japan
Prior art keywords
mass storage
virtual
mount
computer
virtual computer
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
JP57032824A
Other languages
Japanese (ja)
Inventor
Hitoshi Ono
仁 大野
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 JP57032824A priority Critical patent/JPS58149552A/en
Publication of JPS58149552A publication Critical patent/JPS58149552A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE:To access quickly data existing in a mass storage, by allowing a virtual computer to prestage a data on the mass storage into a mass storage device on a basis of the private operating control. CONSTITUTION:When a virtual computer B12 uses a virtual volume, the computer B12 issues a mount request to a control program OS operated on the computer B12. The mount request is converted to a mount order to a mass storage controller 13 by the OS and is issued as an I/O request. When receiving the mount order, the controller 13 stages only the region of a requested cylinder to a mass storage device DASD 17 controlled by a staging controller SDC 14. Though a mass storage facility MSF 16 moves a cartridge to a data recording mechanism each time the stage processing is performed, the OS prestages the region, which is judged to be necessary, on the mount-requested virtual volume. Thus, the access time is shortened.

Description

【発明の詳細な説明】 （１）　　発明の技術分野 本発明は、仮想ｉ￥１′卑慎システムにおける仮想Ｄ　
Ａ　Ｓ　Ｄを実ＤＡＳＤとして使用する仮想計算機毎は
、Ｍｉｓ（マス・ストレッジ・システム）管理システム
により、Ｍ　Ｓ　Ｓに存在するデータのアクセス時に、
データネ在の発生回数を減らす方式に関する。DETAILED DESCRIPTION OF THE INVENTION (1) Technical field of the invention The present invention provides a virtual
Each virtual machine that uses an ASD as a real DASD uses a Mis (mass storage system) management system to perform
This invention relates to a method for reducing the number of occurrences of data loss.

（２）従来技９１σと問題点 仮想計痺機システムでは複数の異なるオペレーティング
システムを起動させることができる。(2) Prior Art 91σ and Problems The virtual computer system can run a plurality of different operating systems.

このｍ曾Ｍ　Ｓ　Ｓをサポートしているオペレーティン
グシステムはＭｓ８官埋システムとしての役割を与え、
ＭＳＳをサポートしていないオペレーティングシステム
に対し、該ＭＳｌＩＶＣより実現される仮想１）　Ａ　
Ｓ　Ｉ）を天Ｄ　Ａ　Ｓ　Ｄとして見せることは実現さ
れているが、データネ在七−ドで動くた１Ｖ）、アクセ
ス時間が焚く掛るという欠点があった。The operating system that supports this m
For operating systems that do not support MSS, virtualization realized by the MSIVC1) A
Although it has been realized to present SI) as a data center, it has the drawback that the access time is long because it operates on a data center.

（３）発明の目的 本発明は前記欠点を屏消して、仮想１°算槻システムに
おけるＭＳＳＫ存任するデータを迅速にアクセスする方
式を提供することケ目的とする。(3) Object of the Invention The object of the present invention is to eliminate the above-mentioned drawbacks and provide a method for quickly accessing data existing in the MSSK in a virtual 1° calculation system.

（４）　　発明の構成 該目的は、仮想Ｋｌ′ｍｍ毎に対応するＬＪ　Ｓ　６具
１＋ｔ＃する仮想訂鼻磯シスデムにおいて、ある仮想ｉ
−１鋒機が、該仮想ｉ１１′算機専用のオペレーティン
グシステム及びマスストＶ−シ官埋手段の制御の基に、
マスストレージ（ＭＳＳ　）上のデータを大記憶装（ｔ
、　（Ｄ　Ａ　Ｓ　ｏ　）上にプレステージしておく手
段を設けたことを特徴とする仮想計算機システムにおけ
るマスストレージのプレステージ方式により達ｌ戊６れ
る。(4) Structure of the invention The purpose is to calculate a certain virtual
-1 Feng machine under the control of the operating system dedicated to the virtual i11' computer and the mast V-si official means,
Data on mass storage (MSS) is transferred to large storage device (t
This can be achieved by a mass storage prestige method in a virtual computer system, which is characterized by providing a means for prestaging data on (D A So ).

（５）発明の実施例 以ド図面を１史って本発明の詳細な説明するｎ第１図は
本発明の一実施例を示す全体ブロック図である。(5) Embodiment of the Invention The present invention will be explained in detail with reference to the drawings. Fig. 1 is an overall block diagram showing an embodiment of the present invention.

図Ｖこおいて、１１は仮想計算機Ａ（Ｖ’Ｍｉ）、ゝ゛
１２は仮想計：痺機Ｂ、１３はＭＳ８制御装置（ＭＳＯ
）、１４はステージングディスクコントローラ（ＳＤＣ
）、１５はディスクバノクコントシ １コーラ（ＤＰａ＋）、１６はマス、ストレッジファｌ
リディ（Ｍ　Ｓ　’Ｆ　）、１７はＤ　Ａ　１３　Ｄで
ある。In FIG.
), 14 is a staging disk controller (SDC
), 15 is disk banokkontoshi 1 cola (DPa+), 16 is mass, storage file
Liddy (M S 'F), 17 is D A 13 D.

第２図は本発明の一実施例を示す仮想計算機のＭ＋、（
レプレステージ機能を示すフローチャートである。FIG. 2 shows a virtual machine M+, (
It is a flowchart which shows a represtige function.

域判断処理部、２５は完Ｔ通知部である。The area determination processing section 25 is a complete T notification section.

さて、１反意６十痺機システムにあ・いて実現される、
例えば仮想計算機ｆ３１２が仮想ボ１７．−ムを１史用
する場付には　該仮想計算機１３１２−ヒで運用される
市１ｊ崗１プログラム（０８）にマウントを依！ｆ目す
る。Now, it will be realized by using the 1st opposition system,
For example, virtual computer f312 is virtual computer 17. - To use the computer for the first time, mount the program (08) operated on the virtual computer 1312-H. Look f.

該マウント依頼は、前記制価１プログラムによってＭＢ
ｄ制＠ｊ装置ｔ（ｖｓｃ）１ａＢｃ対するマウントオー
ダに変換され、１１０要求として発行きれる１、該Ｍ　
Ｓ　ｃ　ｍｌＪｆｍｌ装ｕｆｆｉ（Ｍｓｅ）１ｉｓは前
Ｍｄ　マウントオーダを受取ると、該マウントオーダ要
求されたホリーーームのシリンダＯの領域たけをステー
ジング装置ｍ　（Ｌ４　Ｄ　Ｏ１４制御４　ト’　（１
）　１）　Ａ　Ｓ　ｌ）　）　’Ｉｃ　７−７−ジ（ｂ
ｔａｇａ）する。The mount request is made by the above-mentioned price 1 program.
1, the M
When the S c mlJfml equipment uffi (Mse) 1is receives the previous Md mount order, the staging device m (L4 D O14 control 4 to' (1
) 1) A S l) ) 'Ic 7-7-di(b
taga).

同、シリンダ０以外の領域は実際に仮想計算機Ｂｉ２か
らアクセスされた時点でステージされる。Similarly, areas other than cylinder 0 are staged when they are actually accessed from the virtual machine Bi2.

その際ステージされる領域の大きさは固定されて耘り（
通゛ｌ＄１シリンダ又は８シリンダ）、ステージ処理の
度ＶＣＭ　Ｂ　Ｌｌ’　］、　６が次の処理を何なう。At that time, the size of the staged area is fixed and limited (
(usually $1 cylinder or 8 cylinders), VCM B Ll' after each stage process], 6. What is the next process?

■　カートリッジをデータ記録機構まで移動させる。■ Move the cartridge to the data recording mechanism.

■　カートリッジのカバーを開き、テープ全データ読取
りヘッドに位置づける。■ Open the cartridge cover and position the tape in the full data read head.

前記■〜（沙の処理は５〜１３秒掛る。① - (The processing of sand takes 5 to 13 seconds.

仄に１つの仮想ボリューム（大きさは４０４シリンダと
する。）すへてを該方式でステージ処理するとカートリ
ッジ動作だけで約１時間も掛る。If a single virtual volume (assuming the size is 404 cylinders) is staged using this method, it will take approximately one hour just to operate the cartridge.

このステージ時間を短縮するため、１度のカートリッジ
の移動で必要な領域全てをステージするようにしたのが
プレステージ方式である。In order to shorten this stage time, the prestige method stages all the necessary areas by moving the cartridge once.

仮想計算機システムではＭＳ１３全営埋する０８は１つ
でめり、該ａＳは他の仮想計Ｊ！機のＯ８がどの領域を
必要としているかを把握できない。In the virtual computer system, there is only one 08 that fills all MS13, and the aS has other virtual computers J! I can't figure out which area the machine's O8 needs.

そこでＭａｓ！’理システムシステムトレージ管理手段
）のＯ８が、マウント要求式れた仮想ポリー−ム上で必
要と判断しｆｃ、領域（あらかじめ登録されたものやボ
リュームの使用形態で判るもの、Ｏ８が指定するもの）
をプレステージする。So Mas! The O8 (system storage management means) determines that it is necessary on the virtual policy for which the mount request has been made, and the fc and area (those registered in advance, those known from the volume usage pattern, and those specified by the O8) )
Prestige.

（６）発明の詳細 な説明したように、本発明によれか、データネ在が予測
できるものに対し、その発生を予防し、アクセス時間を
短縮できる。(6) As described in detail, according to the present invention, it is possible to prevent data loss from occurring and shorten the access time for data that can be predicted.

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

第１図は本発明の一実施例を示す全体ブロック図である
。 第２図は本発明の一実施例を示す仮想ｆｉ−１算機のＭ
Ｓフレプレステー機能を示すフローチャー；・である。 記号の説明　１１は仮想計算機Ａ（ＶＭＩ）、　）■２
は仮想削算機Ｂ、■３はＭＳＳ制萌ｊ装置（ＭＳＣ）、
〕、４はステージングティスフコントロ−７（Ｓ　Ｄ　
（Ｅ　）、１５はティスクバノクコントソ ロー７（ＤＰＣ）、１６はマスストレノシファ責卿１侶 第２図 ３２９−FIG. 1 is an overall block diagram showing one embodiment of the present invention. FIG. 2 shows M of a virtual fi-1 computer showing an embodiment of the present invention.
This is a flowchart showing the S frame pre-stay function. Explanation of symbols 11 is virtual machine A (VMI), )■2
is virtual calculator B, ■3 is MSS control device (MSC),
], 4 is the staging control 7 (SD
(E), 15 is Tiskubanok Kontosorou 7 (DPC), 16 is Mastrenoshifa Chief 1st Figure 2 329-

Claims (1)

【特許請求の範囲】[Claims] 仮想計算機毎に対応する０８を具備する仮想肘碑機ンス
テムにおいて、ある仮想計算様が該仮想計鋒磯専用のオ
ペレーティングシステム及ヒマスストレージ肯理手段の
制御の基に、マスストレージ（ＭＳＢ）上のブータラ大
記憶装置ｔ（Ｄ　Ａ　Ｓ　Ｄ　）上にプレステージして
おく手段ケ設けたことを特徴とする仮想ｉｆ１′Ｎ　ｆ
ｊＭ　’／システムおけるマスストレージのプレステー
ジ方式。In a virtual machine system equipped with 08 corresponding to each virtual machine, a certain virtual machine operates on a mass storage (MSB) under the control of an operating system dedicated to the virtual machine and a storage authorization means. A virtual if1'N f characterized in that a means for prestaging it on the bootara large storage device t (D A S D ) is provided.
jM'/Prestige method of mass storage in the system.
JP57032824A 1982-03-02 1982-03-02 Prestaging system of mass storage in virtual computer system Pending JPS58149552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57032824A JPS58149552A (en) 1982-03-02 1982-03-02 Prestaging system of mass storage in virtual computer system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57032824A JPS58149552A (en) 1982-03-02 1982-03-02 Prestaging system of mass storage in virtual computer system

Publications (1)

Publication Number Publication Date
JPS58149552A true JPS58149552A (en) 1983-09-05

Family

ID=12369571

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57032824A Pending JPS58149552A (en) 1982-03-02 1982-03-02 Prestaging system of mass storage in virtual computer system

Country Status (1)

Country Link
JP (1) JPS58149552A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210639A (en) * 1975-07-09 1977-01-27 Int Computers Ltd Data accumulator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5210639A (en) * 1975-07-09 1977-01-27 Int Computers Ltd Data accumulator

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