JP2016508273A5 - - Google Patents
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- JP2016508273A5 JP2016508273A5 JP2015552787A JP2015552787A JP2016508273A5 JP 2016508273 A5 JP2016508273 A5 JP 2016508273A5 JP 2015552787 A JP2015552787 A JP 2015552787A JP 2015552787 A JP2015552787 A JP 2015552787A JP 2016508273 A5 JP2016508273 A5 JP 2016508273A5
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Claims (20)
- 複数のストレージデバイスに複数のデータストレージ位置;及び
複数のストレージデバイスに接続されたストレージコントローラを含むデータストレージサブシステム、
を備える、コンピュータシステムであって、
前記ストレージコントローラは:
複数のストレージデバイスのアクティブデータの論理グループと前記複数のストレージデバイスのスナップショットデータの論理グループとの間のマッピングを追跡するテーブルを保守し、
スナップショットデータの第1の論理グループの第1の範囲内のスナップショットデータがアクティブデータの第2の論理グループの第2の範囲内のアクティブデータの代表例であることを決定し、
前記第1の範囲内のスナップショットデータは前記第2の範囲内のアクティブデータの代表例であることの決定に応答して、前記テーブル内に示し、アクティブデータの前記第2の論理グループの前記第2の範囲をスナップショットデータの前記第1の論理グループの前記第1の範囲にマッピングし、
前記第2の論理グループの前記第2の範囲内の前記アクティブデータのための要求に応答して、前記第1の論理グループの前記第1の範囲から前記スナップショットデータを取得する前記テーブルを使用し、
スナップショットデータの前記第1の範囲は前記第1の論理グループのアドレス空間内の第1のオフセットに配置され、
アクティブデータの前記第2の範囲は前記第2の論理グループのアドレス空間内の第2のオフセットに配置され、
前記第2の範囲は、第3のオフセットを用いて前記第1の範囲に整列されていることのインジケータを記憶するよう、
構成されるコンピュータシステム。 - 前記ストレージコントローラは更に:
前記テーブルのインジケータの応答して、前記第1の範囲への前記第2の範囲にのマッピイングの、前記テーブル内の前記第2の範囲に対応する複数のエントリを無効化するよう構成される、請求項1に記載のコンピュータシステム。 - 前記第1の論理グループの前記第1の範囲及び前記第2論理グループの前記第2の範囲は、第1のボリュームに関連する、請求項1に記載のコンピュータシステム。
- 前記第1の論理グループの前記第1の範囲のスナップショットデータは読み出し専用である、請求項1に記載のコンピュータシステム。
- 前記第3のオフセットは、前記第2のオフセットと前記第1のオフセットとの差に等しい、請求項1に記載のコンピュータシステム。
- 前記第2の範囲は、前記第2の論理グループの前記アドレス空間の一部分であり、
前記ストレージコントローラは更に:
前記第2の論理グループの追加の範囲それぞれに関して前記テーブル内に新規のエントリを生成し;
前記テーブル内の第2のエントリから各新規のエントリに複数の属性をコピーし、ここで前記第2のエントリは前記第2の論理グループに割り当てられ、前記複数の属性はもう1つの論理グループ及びオフセットの詳述を含む、
よう構成される、請求項1に記載のコンピュータシステム。 - 前記マッピングは前記テーブル内の第1のエントリに示され、前記第1のエントリは前記第2の論理グループに割り当てられる、請求項1に記載のコンピュータシステム。
- ストレージシステムにおいて使用するための方法であって、前記ストレージシステムは複数のストレージデバイスを含み、前記方法は、
複数のストレージデバイスのアクティブデータの論理グループと前記複数のストレージデバイスのスナップショットデータの論理グループとの間のマッピングを追跡するテーブルを保守するステップ、
スナップショットデータの第1の論理グループの第1の範囲内のスナップショットデータがアクティブデータの第2の論理グループの第2の範囲内のアクティブデータの代表例であることを決定するステップ、
前記第1の範囲内のスナップショットデータは前記第2の範囲内のアクティブデータの代表例であることの決定に応答して、テーブル内に示し、アクティブデータの前記第2の論理グループの前記第2の範囲をスナップショットデータの前記第1の論理グループの前記第1の範囲にマッピングするステップ、
前記第2の論理グループの前記第2の範囲内の前記アクティブデータのための要求に応答して、前記第1の論理グループの前記第1の範囲から前記スナップショットデータを取得する前記テーブルを使用するステップ、
スナップショットデータの前記第1の範囲は前記第1の論理グループのアドレス空間内の第1のオフセットに配置され、
アクティブデータの前記第2の範囲は前記第2の論理グループのアドレス空間内の第2のオフセットに配置され、
前記第2の範囲は、第3のオフセットを用いて前記第1の範囲に整列されていることのインジケータを記憶するステップ、
を含む、ストレージシステムにおいて使用するための方法。 - 前記テーブルのインジケータの応答して、前記第1の範囲への前記第2の範囲のマッピングの、前記テーブル内の前記第2の論理グループの前記第2の範囲に対応する複数のエントリを無効化するステップを更に含む、請求項8に記載の方法。
- 前記第1の論理グループの前記第1の範囲及び前記第2の論理グループの前記第2の範囲は、第1のボリュームに関連する、請求項8に記載の方法。
- 前記第1の論理グループの前記第1の範囲の前記スナップショットは読み取り専用である、請求項8に記載の方法。
- 前記第3のオフセットは、前記第2のオフセットと前記第1のオフセットとの差に等しい、請求項8に記載の方法。
- 前記第2の範囲は、前記第2の論理グループの前記アドレス空間の一部分であり、
前記方法は更に:
前記第2の論理グループの追加の範囲それぞれに関して前記テーブル内に新規のエントリを生成するステップ;および、
前記テーブル内の第2のエントリから各新規のエントリに複数の属性をコピーするステップを含み、ここで前記第2のエントリは前記第2の論理グループに割り当てられ、前記複数の属性はもう1つの論理グループ及びオフセットの詳述を含む、請求項8に記載の方法。 - 前記マッピングは前記テーブル内の第1のエントリに示され、前記第1のエントリは前記第2の論理グループに割り当てられる、請求項8に記載の方法。
- プログラム命令を記憶する非一時的コンピュータ可読ストレージ媒体であって、
前記プログラム命令をプロセッサによって:
複数のストレージデバイスのアクティブデータの論理グループと前記複数のストレージデバイスのスナップショットデータの論理グループとの間のマッピイングを追跡するテーブルを保守するステップ、
スナップショットデータの第1の論理グループの第1の範囲内のスナップショットデータがアクティブデータの第2の論理グループの第2の範囲内のアクティブデータの代表例であることを決定するステップ、
前記第1の範囲内のスナップショットデータは前記第2の範囲内のアクティブデータの代表例であることの決定に応答して、前記テーブル内に示し、アクティブデータの前記第2の論理グループの前記第2の範囲をスナップショットデータの前記第1の論理グループの前記第1の範囲にマッピングするステップ、
前記第2の論理グループの前記第2の範囲内の前記アクティブデータのための要求に応答して、前記第1の論理グループの前記第1の範囲から前記スナップショットデータを取得する前記テーブルを使用するステップ、
スナップショットデータの前記第1の範囲は前記第1の論理グループのアドレス空間内の第1のオフセットに配置され、
アクティブデータの前記第2の範囲は前記第2の論理グループのアドレス空間内の第2のオフセットに配置され、
前記第2の範囲は、第3のオフセットを用いて前記第1の範囲に整列されていることのインジケータを記憶するステップ、
を実行できる、プログラム命令を記憶する非一時的コンピュータ可読ストレージ媒体。 - 前記プログラム命令はプロセッサによって更に、
前記テーブルのインジケータの応答して、前記第1の範囲への前記第2の範囲にのマッピングの、前記テーブル内の前記第2の範囲に対応する複数のエントリを無効化するステップを実行できる、請求項15に記載のコンピュータ可読ストレージ媒体。 - 前記第1の論理グループの前記第1の範囲及び前記第2の論理グループの前記第2の範囲は、第1のボリュームに関連する、請求項15に記載のコンピュータ可読ストレージ媒体。
- 前記第1の論理グループはスナップショットデータの複数の範囲を含み、前記第2の論理グループはアクティブデータの複数の範囲を含む、請求項15に記載のコンピュータ可読ストレージ媒体。
- 前記第3のオフセットは、前記第2のオフセットと前記第1のオフセットとの差に等しい、請求項15に記載のコンピュータ可読ストレージ媒体。
- 前記第2の範囲は、前記第2の論理グループの前記アドレス空間の一部分であり:
前記プログラム命令はプロセッサによって更に、
前記第2の論理グループの追加の範囲それぞれに関して前記テーブル内に新規のエントリを生成するステップ;
前記テーブル内の第2のエントリから各新規のエントリに複数の属性をコピーするステップを実行でき、ここで前記第2のエントリは前記第2の論理グループに割り当てられ、前記複数の属性はもう1つの論理グループ及びオフセットの詳述を含む、請求項15に記載のコンピュータ可読ストレージ媒体。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361751142P | 2013-01-10 | 2013-01-10 | |
US61/751,142 | 2013-01-10 | ||
US14/046,876 US9589008B2 (en) | 2013-01-10 | 2013-10-04 | Deduplication of volume regions |
US14/046,876 | 2013-10-04 | ||
PCT/US2014/010958 WO2014110311A1 (en) | 2013-01-10 | 2014-01-10 | Deduplication of volume regions |
Publications (3)
Publication Number | Publication Date |
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JP2016508273A JP2016508273A (ja) | 2016-03-17 |
JP2016508273A5 true JP2016508273A5 (ja) | 2017-02-16 |
JP6445458B2 JP6445458B2 (ja) | 2018-12-26 |
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JP2015552744A Active JP6543195B2 (ja) | 2013-01-10 | 2014-01-08 | ストレージシステム内でのコピーの実行 |
JP2015552787A Active JP6445458B2 (ja) | 2013-01-10 | 2014-01-10 | ボリューム領域の重複排除 |
JP2015552796A Active JP6767115B2 (ja) | 2013-01-10 | 2014-01-10 | ボリューム動作のための安全装置 |
JP2019035180A Pending JP2019096355A (ja) | 2013-01-10 | 2019-02-28 | 論理ボリューム維持のための方法及び装置 |
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JP2015552744A Active JP6543195B2 (ja) | 2013-01-10 | 2014-01-08 | ストレージシステム内でのコピーの実行 |
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JP2015552796A Active JP6767115B2 (ja) | 2013-01-10 | 2014-01-10 | ボリューム動作のための安全装置 |
JP2019035180A Pending JP2019096355A (ja) | 2013-01-10 | 2019-02-28 | 論理ボリューム維持のための方法及び装置 |
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US (18) | US9436720B2 (ja) |
EP (3) | EP2943872A1 (ja) |
JP (4) | JP6543195B2 (ja) |
KR (3) | KR20150104604A (ja) |
CN (3) | CN105027068B (ja) |
WO (5) | WO2014110137A1 (ja) |
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- 2017-04-11 US US15/484,243 patent/US10235093B1/en active Active
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2018
- 2018-01-19 US US15/875,189 patent/US10585617B1/en active Active
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2019
- 2019-02-14 US US16/276,451 patent/US20190179535A1/en not_active Abandoned
- 2019-02-28 JP JP2019035180A patent/JP2019096355A/ja active Pending
- 2019-09-26 US US16/583,457 patent/US11853584B1/en active Active
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2020
- 2020-02-12 US US16/788,771 patent/US11099769B1/en active Active
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2021
- 2021-08-19 US US17/406,421 patent/US11662936B2/en active Active
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2023
- 2023-05-05 US US18/312,872 patent/US12099741B2/en active Active
- 2023-08-10 US US18/448,019 patent/US20230384963A1/en active Pending
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