JP2009116914A - 仮想マシンをフォークまたはマイグレートするための方法 - Google Patents
仮想マシンをフォークまたはマイグレートするための方法 Download PDFInfo
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- G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
- G06F9/485—Task life-cycle, e.g. stopping, restarting, resuming execution
- G06F9/4856—Task life-cycle, e.g. stopping, restarting, resuming execution resumption being on a different machine, e.g. task migration, virtual machine migration
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Abstract
【解決手段】親仮想マシンをホストコンピュータ上に提供する。親仮想マシンを一時的にまたは永続的に中止する。子仮想マシンは親仮想マシンに関連付けられた全格納されたデータを初めは備えていない。親仮想マシンをフォークして、新しいロケーションで子仮想マシンを生成する。子仮想マシンは、親仮想マシンに関連付けられた格納データの全てを最初は持っていなくてもよい。
【選択図】図2
Description
PCソフトウェアは、Intel80X86ペンティアム(登録商標)プロセッサ、および種々のマザーボードコンポーネントおよびカードを含むコンピュータ全体をエミュレートする。これらのコンポーネントの動作は、ホストマシン上で実行される仮想マシンのなかでエミュレートされる。PowerPCプロセッサを備えるコンピュータシステムのような、ホストコンピュータのオペレーティングシステムソフトウェアおよびハードウェアアーキテクチャ上で実行されるエミュレータプログラムは、ゲストコンピュータシステム全体のオペレーションを模倣している。エミュレータプログラムは、ホストマシンのハードウェアアーキテクチャとエミュレートされた環境内で実行されるソフトウェアによって送信される命令との間での互換を行うものとして作用する。
Claims (20)
- 仮想マシン処理の方法において、
ゲストオペレーティングシステムをホストするように構成された親仮想マシンを第1のホストシステム上に提供するステップと、
前記親仮想マシンを中止するステップと、
前記親仮想マシンをマイグレーティングして、少なくとも一つの新しいロケーションに、仮想マシンとして実行する前記親仮想マシンのコピーを備える少なくとも一つの子仮想マシンを作成するステップと、
前記親仮想マシンの実行又は前記子仮想マシンの実行に必要な前記親仮想マシンの部分を前記少なくとも一つの子仮想マシンに送信するステップと
を備えたことを特徴とする方法。 - 前記親仮想マシンの前記コピーは前記親仮想マシンのメモリを含まず、前記部分を送信するステップは前記子仮想マシンによってアクセスされるメモリの副部分を送信するステップを有することを特徴とする請求項1に記載の方法。
- 前記少なくとも一つの新しいロケーションは、前記第1のホストコンピュータシステム上に存在することを特徴とする請求項1又は請求項2に記載の方法。
- 前記少なくとも一つの新しいロケーションは、前記第2のホストコンピュータシステム上に存在することを特徴とする請求項1から請求項3のいずれかに記載の方法。
- 前記親仮想マシンはネットワークサーバであることを特徴とする請求項1から請求項4のいずれかに記載の方法。
- 仮想マシン処理の方法において、
ゲストオペレーティングシステムをホストするように構成された親仮想マシンであって、データが格納された前記親仮想マシンを第1のホストシステム上に提供するステップと、
前記親仮想マシンを中止するステップと、
前記親仮想マシンをマイグレーティングして、少なくとも一つの新しいロケーションに、前記親仮想マシンの前記格納されたデータの第1の部分を除いた前記親仮想マシンのコピーを備える少なくとも一つの子仮想マシンを作成するステップと、
前記親仮想マシンを実行しながら前記作成した少なくとも一つの子仮想マシンを実行するステップと、
前記子仮想マシンによって必要とされる前記データの第1の部分の副部分であって、前記子仮想マシンがアクセス中ではない前記副部分を、前記親仮想マシンから前記少なくとも一つの子仮想マシンへ送信するステップと
を備えたことを特徴とする方法。 - 前記副部分を送信するステップは、前記親仮想マシンによって必要とされる前記第1の部分の副部分を前記親仮想マシンから前記子仮想マシンへ送信するステップを有することを特徴とする請求項6に記載の方法。
- 前記少なくとも一つの新しいロケーションは前記第1のホストコンピュータシステム上に存在することを特徴とする請求項6又は請求項7に記載の方法。
- 前記少なくとも一つの新しいロケーションは第2のホストコンピュータシステム上に存在することを特徴とする請求項6から請求項8のいずれかに記載の方法。
- 前記子仮想マシンは、マイグレーティングのとき、前記マイグレーティングされる親仮想マシンによってホストされたゲストオペレーティングシステムの少なくとも一部分のコピーをホストし、前記ゲストオペレーティングシステムは、前記親仮想マシンの前記格納されたデータの前記第1の部分が欠けた前記子仮想マシン上で実行開始可能であることを特徴とする請求項6から請求項9のいずれかに記載の方法。
- 前記送信するステップは、デマンドページングを用いて、前記格納されたデータの第1の部分の副部分を前記少なくとも一つの子仮想マシンに送信することを特徴とする請求項6から請求項10のいずれかに記載の方法。
- 前記送信するステップは、前記少なくとも一つの子仮想マシンが前記第1の部分の第1の副部分にアクセスする場合、前記少なくとも一つの子仮想マシンを一時的に中止するステップ、および、前記第1の副部分を前記少なくとも一つの子仮想マシンに送信するステップを備えることを特徴とする請求項11に記載の方法。
- 前記送信するステップは、前記親仮想マシンに関連付けられた格納されたデータの前記第1の部分の全てが、前記少なくとも一つの子仮想マシンに送信されていない場合、前記第1の部分の第2の副部分を前記少なくとも一つの子仮想マシンに送信するステップをさらに備えることを特徴とする請求項12に記載の方法。
- 前記送信するステップは、前記少なくとも一つの子仮想マシンが前記親仮想マシンの少なくとも一つのメモリにアクセスしない場合、前記第1の部分のメモリページを前記少なくとも一つの子仮想マシンに送信するステップを備えることを特徴とする請求項11から請求項13のいずれかに記載の方法。
- 前記第1の部分は前記親仮想マシンのメモリを有することを特徴とする請求項6から請求項14のいずれかに記載の方法。
- 前記送信するステップは、前記親仮想マシンが第1の副部分を変更しようとする場合に、第1の副部分が親仮想マシンによって変更される前に、前記第1の副部分を少なくとも一つの子仮想マシンに送信するステップを備えることを特徴とする請求項11に記載の方法。
- 前記送信するステップは、前記親仮想マシンに関連付けられた前記格納されたデータの前記第1の部分の全てが、前記少なくとも一つの子仮想マシンに送信されていない場合、前記第1の部分の第2の副部分を前記少なくとも一つの子仮想マシンに送信するステップをさらに備えることを特徴とする請求項16に記載の方法。
- 前記送信するステップは、前記親仮想マシンが第1の副部分を変更しようとする場合、前記第1の副部分が前記親仮想マシンによって変更される前に、当該第1の副部分をコピーするステップをさらに備えることを特徴とする請求項11に記載の方法。
- 前記第1の副部分のコピーは一時的なコピーであることを特徴とする請求項18に記載の方法。
- 前記送信するステップは、前記親仮想マシンに関連付けられた前記格納されたデータの前記第1の部分の全てが、前記少なくとも一つの子仮想マシンに送信されていない場合、第1の部分の第2の副部分を前記少なくとも一つの子仮想マシンに送信するステップをさらに備えることを特徴とする請求項18に記載の方法。
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US10/193,531 US7313793B2 (en) | 2002-07-11 | 2002-07-11 | Method for forking or migrating a virtual machine |
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JP2009049688A Expired - Fee Related JP5085590B2 (ja) | 2002-07-11 | 2009-03-03 | 仮想マシンをフォークまたはマイグレートするための方法 |
JP2012010295A Pending JP2012074090A (ja) | 2002-07-11 | 2012-01-20 | 仮想マシンをフォークまたはマイグレートするための方法 |
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JPH06187308A (ja) * | 1992-12-21 | 1994-07-08 | Toshiba Corp | 複合計算機システムに於ける分散共有記憶管理方式及び負荷分散方式 |
JPH10283210A (ja) * | 1997-04-01 | 1998-10-23 | Hitachi Ltd | 仮想計算機システム間の仮想計算機移動制御方式 |
Cited By (3)
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WO2011149326A1 (en) * | 2010-05-25 | 2011-12-01 | Mimos Berhad | System and method for virtual on-demand application |
JPWO2013008450A1 (ja) * | 2011-07-14 | 2015-02-23 | パナソニック インテレクチュアル プロパティ コーポレーション オブアメリカPanasonic Intellectual Property Corporation of America | 仮想計算機システム、メモリ管理方法、メモリ管理プログラム、記録媒体および集積回路 |
US9176781B2 (en) | 2011-07-14 | 2015-11-03 | Panasonic Intellectual Property Corporation Of America | Virtual machine system, memory management method, memory management program, recording medium, and integrated circuit |
Also Published As
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US20080098154A1 (en) | 2008-04-24 |
JP2004133894A (ja) | 2004-04-30 |
JP5085590B2 (ja) | 2012-11-28 |
US7657888B2 (en) | 2010-02-02 |
EP1380947B1 (en) | 2019-05-01 |
EP1380947A2 (en) | 2004-01-14 |
JP5769212B2 (ja) | 2015-08-26 |
JP4942909B2 (ja) | 2012-05-30 |
US20040010787A1 (en) | 2004-01-15 |
EP1380947A3 (en) | 2008-11-05 |
ES2734248T3 (es) | 2019-12-05 |
US7313793B2 (en) | 2007-12-25 |
JP2014006935A (ja) | 2014-01-16 |
JP2012074090A (ja) | 2012-04-12 |
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