JP2013541766A5 - - Google Patents

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JP2013541766A5
JP2013541766A5 JP2013529322A JP2013529322A JP2013541766A5 JP 2013541766 A5 JP2013541766 A5 JP 2013541766A5 JP 2013529322 A JP2013529322 A JP 2013529322A JP 2013529322 A JP2013529322 A JP 2013529322A JP 2013541766 A5 JP2013541766 A5 JP 2013541766A5
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storage devices
processing
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JP5937598B2 (ja
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Claims (12)

  1. データを記憶するように構成された複数のストレージデバイスを含むデータ記憶媒体と

    前記データ記憶媒体に結合されたデータストレージコントローラと、
    を備え、前記データストレージコントローラは、
    前記データ記憶媒体を対象とする、第1のタイプの動作及び第2のタイプの動作を含
    む要求を受け取り、
    前記第1のタイプの要求を、前記複数のストレージデバイスによって直ちに処理され
    るようにスケジュールし、
    前記第2のタイプの要求を、前記複数のストレージデバイスによって後で処理される
    ようにキューに入れる、
    ように構成される、
    ことを特徴とするコンピュータシステム。
  2. 前記第1のタイプの動作は、レイテンシが相対的に短いと予想される動作に対応し、前
    記第2のタイプの動作は、レイテンシが相対的に長いと予想される動作に対応する、
    ことを特徴とする請求項1に記載のコンピュータシステム。
  3. 前記第1のタイプの動作は、読み込み要求に対応し、前記第2のタイプの動作は、書き
    込み要求、キャッシュフラッシュ、又はトリム動作に対応する、
    ことを特徴とする請求項2に記載のコンピュータシステム。
  4. 前記複数のストレージデバイスは、ソリッドステートストレージデバイスであり、該ソ
    リッドステートストレージデバイスの各々は、読み込み要求を相対的に短いレイテンシで
    処理し、書き込み要求を相対的に長いレイテンシで処理する、
    ことを特徴とする請求項1に記載のコンピュータシステム。
  5. 前記ストレージコントローラは、前記第2のタイプの動作に対応する複数の要求をキュ
    ーに入れた後、前記第1のタイプの動作に対応する要求の処理を中断し、前記第2のタイ
    プの動作に対応する要求のみを処理するように構成される、
    ことを特徴とする請求項1に記載のコンピュータシステム。
  6. 前記第2のタイプの動作に対応する前記複数の要求は、書き込み要求に対応し、前記ス
    トレージコントローラは、前記書き込み要求の後に、所与のデバイスに対してダミーの読
    み込みを自動的にスケジュールするように構成される、
    ことを特徴とする請求項5に記載のコンピュータシステム。
  7. 前記ストレージコントローラは、前記複数のデバイスのうちの別のデバイスが相対的に
    短い応答レイテンシを示していることを検出したことに応答して、前記第2のタイプの動
    作に対応する要求の処理を中断するように構成される、
    ことを特徴とする請求項5に記載のコンピュータシステム。
  8. 前記第2のタイプの動作に対応する前記複数の要求は、書き込み要求に対応し、前記ス
    トレージコントローラは、前記書き込み要求を、処理するための複数の不連続単位のデー
    タとしてストリーミングし、前記ストレージコントローラは、前記単位のいずれかの後に
    前記ストリーミングを停止することができる、
    ことを特徴とする請求項2に記載のコンピュータシステム。
  9. 前記ストレージコントローラは、所与の状態を検出したことに応答して、前記第1のタ
    イプに対応する要求の処理を直ちに停止し、前記第2のタイプに対応するキューに入れら
    れた要求の処理を開始するように構成される、
    ことを特徴とする請求項1に記載のコンピュータシステム。
  10. 前記状態は、特定数の前記第2のタイプの要求がキューに入ったこと、前記第2のタイ
    プの要求が処理されてからある時間が経過したこと、及び一定の時間にわたって新たな要
    求が受け取られなかったことのうちの少なくとも1つを含む、
    ことを特徴とする請求項9に記載のコンピュータシステム。
  11. コンピューティングシステムで使用するための方法であって、
    データを記憶するように構成された複数のストレージデバイスを含むデータ記憶媒体を
    対象とする、第1のタイプの動作及び第2のタイプの動作を含む要求を受け取るステップ
    と、
    前記第1のタイプの要求を、前記複数のストレージデバイスによって直ちに処理される
    ようにスケジュールするステップと、
    前記第2のタイプの要求を、前記複数のストレージデバイスによって後で処理されるよ
    うにキューに入れるステップと、
    を含むことを特徴とする方法。
  12. プログラム命令を含むコンピュータ可読記憶媒体であって、前記プログラム命令は、処
    理デバイスによる実行時に、
    データを記憶するように構成された複数のストレージデバイスを含むデータ記憶媒体を
    対象とする、第1のタイプの動作及び第2のタイプの動作を含む要求を受け取り、
    前記第1のタイプの要求を、前記複数のストレージデバイスによって直ちに処理される
    ようにスケジュールし、
    前記第2のタイプの要求を、前記複数のストレージデバイスによって後で処理されるよ
    うにキューに入れる、
    ように動作可能であることを特徴とするコンピュータ可読記憶媒体。
JP2013529322A 2010-09-15 2011-09-15 ストレージ環境におけるi/o書き込みのスケジューリング Active JP5937598B2 (ja)

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US12/882,877 US8468318B2 (en) 2010-09-15 2010-09-15 Scheduling of I/O writes in a storage environment
US12/882,877 2010-09-15
PCT/US2011/051752 WO2012037344A1 (en) 2010-09-15 2011-09-15 Scheduling of i/o writes in a storage environment

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JP2013541766A5 true JP2013541766A5 (ja) 2014-11-06
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US (5) US8468318B2 (ja)
EP (2) EP3043255B1 (ja)
JP (2) JP5937598B2 (ja)
KR (1) KR101862892B1 (ja)
CN (1) CN103370685B (ja)
WO (1) WO2012037344A1 (ja)

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