JP2011517820A - 記憶要求を追加データ記憶コマンドに変換するための装置、システム及び方法 - Google Patents
記憶要求を追加データ記憶コマンドに変換するための装置、システム及び方法 Download PDFInfo
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Abstract
Description
Claims (32)
- 記憶要求を追加データ記憶コマンドに変換する装置であって、
要求側デバイスから、データ記憶デバイス上にファイル又はオブジェクトのデータセグメントを格納するための記憶要求を受信する記憶要求受信モジュールであって、該記憶要求は該データセグメントのための1又は複数のソースパラメータを含み、該ソースパラメータは仮想アドレスを含み、仮想アドレスは論理ブロックアドレスには限定されない、記憶要求受信モジュールと、
前記記憶要求を1又は複数の記憶コマンドに翻訳する翻訳モジュールであって、少なくとも1つの記憶コマンドは追加データ記憶コマンドを含み、該追加データ記憶コマンドはそれぞれ、前記データ記憶デバイスに、前記データセグメントのデータ及び前記1又は複数のパラメータを1又は複数の追加点に格納するように指示し、前記1又は複数のソースパラメータは前記データと共に格納され、前記ソースパラメータのうちの少なくとも1つは仮想アドレスを含んでいる、翻訳モジュールと、
前記データセグメントの前記1又は複数のソースパラメータを、前記データ記憶デバイスが前記データセグメントの前記データ及び前記ソースパラメータを追加した前記データ記憶デバイス内の1又は複数のロケーションにマッピングするマッピングモジュールと
を備えることを特徴とする装置。 - 請求項1記載の装置において、前記翻訳モジュールにおける前記データと共に前記1又は複数のソースパラメータを格納することは、前記データ及び前記ソースパラメータを同時に格納することを含むことを特徴とする装置。
- 請求項1記載の装置において、前記翻訳モジュールにおける前記データと共に前記1又は複数のソースパラメータを格納することは、仮想アドレスに加えて、前記1又は複数のソースパラメータを格納することを含むことを特徴とする装置。
- 請求項1記載の装置において、前記翻訳モジュールにおける前記データはデータパケットとして格納され、前記データと共に前記1又は複数のソースパラメータを格納することは、データパケットヘッダ内に前記ソースパラメータを格納することを含み、前記データパケットヘッダは前記データパケットの前記データと一緒に格納されることを特徴とする装置。
- 請求項1記載の装置において、該装置はさらに、ガーベージコレクションモジュールを備え、該ガーベージコレクションモジュールは、回復を行なうことが確認された前記データ記憶デバイス上の記憶領域から、有効データ及び関連するソースパラメータを移動すると共に、前記記憶領域を、次のデータ記憶のために前記データ記憶デバイス内の利用可能空間のプールに戻す前に、該記憶領域からデータを消去し、前記ガーベージコレクションモジュールは、非同期バックグラウンドプロセスとして動作し、前記マッピングモジュールは、前記有効データの前記1又は複数のソースパラメータを、前記データ記憶デバイスが前記有効データ及び前記関連するソースパラメータを追加した1又は複数の新たなロケーションにリマッピングするよう構成されていることを特徴とする装置。
- 請求項1記載の装置において、前記データは前記データ記憶デバイスの或る領域内に順次に格納され、該装置においては、該領域のシーケンス情報を格納するよう構成され、該シーケンス情報は、他の領域がデータを書き込まれた時点に対する該領域がデータを書き込まれた時点を特定し、記憶ログが前記領域の前記シーケンス情報と、データが各領域に格納されるシーケンスとを含むことを特徴とする装置。
- 請求項1記載の装置において、前記翻訳モジュールは、前記データ記憶デバイスの外部に配置され、コンピュータネットワークを介して前記データ記憶デバイスに前記1又は複数の追加データ記憶コマンドを送信するよう構成されていることを特徴とする装置。
- 請求項1記載の装置において、前記データセグメントの前記データの物理的なロケーションが、前記データと共に格納される前記ソースデータと共に一次仮想−物理マッピングを構成し、前記マッピングモジュールによって作成される前記マッピングは二次仮想−物理マッピングを構成することを特徴とする装置。
- 請求項7記載の装置において、該装置はさらに、前記データセグメントのために前記マッピングモジュールによって作成された前記二次仮想−物理マッピングを再構築するインデックス再構築モジュールを備え、該インデックス再構築モジュールは、前記データセグメントの前記データと共に格納される前記ソースパラメータのうちの1又は複数を用いること、及び前記データセグメントの前記データが格納される前記データ記憶デバイス上の前記物理的なロケーションを用いることによって、前記一次仮想−物理マッピングを用いて前記マッピングを再構築するよう構成されていることを特徴とする装置。
- 請求項1記載の装置において、該装置は更に、前記データ記憶デバイスから1又は複数の記憶コマンド応答を受信する記憶応答受信モジュールをさらに備え、前記データ記憶応答は、前記データ記憶デバイスが前記データセグメントの前記データ及び関連するソースパラメータを追加した1又は複数のロケーションを含み、前記マッピングモジュールは、前記1又は複数の記憶コマンド応答から、前記データ記憶デバイスが前記データセグメントの前記データ及び関連するソースパラメータを追加した前記1又は複数のロケーションを受信するよう構成されていることを特徴とする装置。
- 請求項1記載のそうちにおいて、前記翻訳モジュールはさらに、前記1又は複数の追加データ記憶コマンドの中にそれぞれ、前記1又は複数の追加点のロケーションを含み、前記マッピングモジュールは、前記翻訳モジュールから、前記データ記憶デバイスが前記データセグメントの前記データを追加した前記1又は複数のロケーションを受信するよう構成されていることを特徴とする装置。
- 請求項1記載の装置において、データが格納されることになる追加点はコンテキストから独立していることを特徴とする装置。
- 請求項1記載の装置において、該装置は、前記記憶要求によって指示されるようにデータを格納するランダムアクセス論理ブロック記憶デバイスをエミュレートし、前記データセグメントの前記仮想アドレスは論理ブロックアドレスを含むことを特徴とする装置。
- 請求項13記載の装置において、前記ソースパラメータは、前記論理ブロックアドレスに加えて仮想識別子を含み、該仮想識別子は前記データセグメントのファイル又はオブジェクトを特定することを特徴とする装置。
- 請求項1記載の装置において、該装置はさらに、前記データ記憶デバイス上に前記データを記憶する前に、前記追加データ記憶コマンドのデータを圧縮する圧縮モジュールを備え、前記追加データ記憶コマンドは前記データセグメントに関連付けられていることを特徴とする装置。
- 請求項15記載の装置において、前記圧縮されたデータと共に圧縮情報が格納されることを特徴とする装置。
- 請求項1記載の装置において、該装置はさらに、2つ以上の未処理の追加データ記憶コマンドが実行されるシーケンスを変更するコマンド並べ替えモジュールを備えることを特徴とする装置。
- 請求項1記載の装置において、前記記憶要求受信モジュールは2つ以上の記憶要求を受信し、前記装置はさらに、該2つ以上の記憶要求がサービスされるシーケンスを並べ替える要求並べ替えモジュールをさらに備えることを特徴とする装置。
- 請求項1記載の装置において、前記記憶要求受信モジュールによって受信される前記記憶要求は、実質的にデータを伴うことなく受信されることを特徴とする装置。
- 請求項1記載の装置において、前記データ記憶デバイスに送信される前記追加データ記憶コマンドは実質的にデータを伴うことなく送信されることを特徴とする装置。
- 請求項1記載の装置において、前記1又は複数のソースパラメータは、前記データセグメントに関連付けられる仮想識別子、デバイス識別子、区画識別子、前記データセグメントの前記1又は複数のデータパケットの長さ、前記データセグメントが前記記憶要求の前に又は後に位置するホストのメモリ内の1又はメモリロケーション、該1又は複数のメモリロケーション内のデータの1又は複数の長さ、前記データセグメントの属性、前記データセグメントのメタデータ及び前記データセグメントの制御パラメータのうちの少なくとも1つをさらに含んでいることを特徴とする装置。
- 請求項1記載の装置において、前記ソースパラメータは、前記記憶要求の結果として前記データセグメントが読み出される1又は複数の物理的なメモリアドレスを含んでいることを特徴とする装置。
- 請求項22に記載の装置において、前記記憶要求及び前記1又は複数の追加データ記憶コマンドのうちの少なくとも1つは、ダイレクトメモリアクセス(「DMA」)プロセス又はリモートDMA(「RDMA」)プロセスを開始し、それにより前記データセグメントの前記データを前記データ記憶デバイスに転送することを特徴とする装置。
- 請求項1記載の装置において、前記記憶要求受信モジュール、前記翻訳モジュール、記憶コマンド送信モジュール及び前記マッピングモジュールのうちの1又は複数の少なくとも一部は、前記要求側デバイス、前記データ記憶デバイス、記憶デバイスコントローラ、並びに前記要求側デバイス、前記データ記憶デバイス、及び該記憶デバイスコントローラとは別個のコンピューティングデバイスのうちの1又は複数の中に配置されることを特徴とする装置。
- 請求項1記載の装置において、前記1又は複数の追加記憶コマンドは、セット追加点コマンド、読出しコマンド、消去コマンド、リセットコマンド、移動コマンド、同期コマンド、フラッシュコマンド、読出し制御レジスタコマンド、変更制御レジスタコマンド、プログラムページコマンド、消去コマンド、転送コマンドリストコマンド、及び要求状態コマンドのうちの1又は複数をさらに含むことを特徴とする装置。
- 請求項1記載の装置において、該装置はさらに、前記要求側デバイスに記憶要求応答を送信する応答送信モジュールを備え、該記憶要求応答は、前記記憶要求の実行に関する情報を含んでいることを特徴とする装置。
- 記憶要求を追加データ記憶コマンドに変換するシステムであって、
データ記憶デバイスと、
前記データ記憶デバイスを制御する記憶コントローラであって、
要求側デバイスから、前記データ記憶デバイス上にファイル又はオブジェクトのデータセグメントを格納するための記憶要求を受信する記憶要求受信モジュールであって、該記憶要求は該データセグメントのための1又は複数のソースパラメータを含み、該ソースパラメータは仮想アドレスを含む、記憶要求受信モジュールと、
前記記憶要求を1又は複数の記憶コマンドに翻訳する翻訳モジュールであって、少なくとも1つの記憶コマンドは追加データ記憶コマンドを含み、該追加データ記憶コマンドはそれぞれ、前記データ記憶デバイスに、前記データセグメントのデータ及び前記1又は複数のパラメータを1又は複数の追加点に格納するように指示し、前記1又は複数のソースパラメータは前記データと共に格納され、前記ソースパラメータのうちの少なくとも1つは仮想アドレスを含み、該仮想アドレスは論理ブロックアドレスには限定されない、翻訳モジュールと、
前記データセグメントの前記1又は複数のソースパラメータを、前記データ記憶デバイスが前記データセグメントの前記データ及び前記ソースパラメータを追加した前記データ記憶デバイス内の1又は複数のロケーションにマッピングするマッピングモジュールと
を備える記憶コントローラと
を備えていることを特徴とするシステム。 - 請求項27記載のシステムにおいて、前記要求側デバイスは、コンピュータネットワークを介して前記記憶コントローラと通信するクライアントであることを特徴とするシステム。
- 請求項28記載のシステムにおいて、前記記憶要求受信モジュール、前記翻訳モジュール、記憶コマンド送信モジュール、及び前記マッピングモジュールのうちの1又は複数は、前記クライアントから独立して動作することを特徴とするシステム。
- 請求項27記載のシステムにおいて、該システムはサーバをさらに備え、前記記憶コントローラは該サーバ内にあることを特徴とするシステム。
- 請求項27記載のシステムにおいて、前記データ記憶デバイスは固体記憶デバイスを含み、前記データセグメントの前記1又は複数のデータパケットは該固体記憶デバイス内に格納されることを特徴とするシステム。
- 記憶要求を追加データ記憶コマンドに変換するための動作を実行するために実行可能であるコンピュータ使用可能プログラムコードを有するコンピュータ可読媒体を備えるコンピュータプログラム製品であって、該コンピュータプログラム製品は、
要求側デバイスから、データ記憶デバイス上にファイル又はオブジェクトのデータセグメントを格納するための記憶要求を受信するステップであって、該記憶要求は仮想アドレスを含み、該仮想アドレスは論理ブロックアドレスには限定されない、受信ステップと、
前記記憶要求を1又は複数の記憶コマンドに翻訳するステップであって、少なくとも1つの記憶コマンドは追加データ記憶コマンドを含み、該追加データ記憶コマンドはそれぞれ、前記データ記憶デバイスに、前記データセグメントのデータ及び前記1又は複数のパラメータを1又は複数の追加点に格納するように指示し、前記1又は複数のソースパラメータは前記データと共に格納され、前記ソースパラメータのうちの少なくとも1つは仮想アドレスを含む、翻訳ステップと、
前記データセグメントの前記1又は複数のソースパラメータを、前記データ記憶デバイスが前記データセグメントの前記データ及び前記ソースパラメータを追加した前記データ記憶デバイス内の1又は複数のロケーションにマッピングするステップと
を実行することを特徴とするコンピュータプログラム製品。
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Publication number | Publication date |
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EP2271978A1 (en) | 2011-01-12 |
US8151082B2 (en) | 2012-04-03 |
US20090150605A1 (en) | 2009-06-11 |
KR101628675B1 (ko) | 2016-06-09 |
KR20160007669A (ko) | 2016-01-20 |
CN102084332B (zh) | 2015-01-07 |
JP5431453B2 (ja) | 2014-03-05 |
KR20110039418A (ko) | 2011-04-18 |
US20130205114A1 (en) | 2013-08-08 |
WO2009126581A1 (en) | 2009-10-15 |
CN102084332A (zh) | 2011-06-01 |
KR101804034B1 (ko) | 2017-12-01 |
EP2271978B1 (en) | 2015-10-21 |
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