JP2008515112A - 仮想順序付け書き込み - Google Patents
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- JP2008515112A JP2008515112A JP2007534801A JP2007534801A JP2008515112A JP 2008515112 A JP2008515112 A JP 2008515112A JP 2007534801 A JP2007534801 A JP 2007534801A JP 2007534801 A JP2007534801 A JP 2007534801A JP 2008515112 A JP2008515112 A JP 2008515112A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
- G06F11/2056—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
- G06F11/2064—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring while ensuring consistency
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
- G06F11/2056—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
- G06F11/2071—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring using a plurality of controllers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
- G06F11/2056—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
- G06F11/2071—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring using a plurality of controllers
- G06F11/2074—Asynchronous techniques
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0804—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches with main memory updating
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0866—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches for peripheral storage systems, e.g. disk cache
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0866—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches for peripheral storage systems, e.g. disk cache
- G06F12/0868—Data transfer between cache memory and other subsystems, e.g. storage devices or host systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
- G06F12/0802—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
- G06F12/0866—Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches for peripheral storage systems, e.g. disk cache
- G06F12/0871—Allocation or management of cache space
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/16—Error detection or correction of the data by redundancy in hardware
- G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
- G06F11/2053—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant
- G06F11/2056—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where persistent mass storage functionality or persistent mass storage control functionality is redundant by mirroring
- G06F11/2082—Data synchronisation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2201/00—Indexing scheme relating to error detection, to error correction, and to monitoring
- G06F2201/82—Solving problems relating to consistency
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
- G06F2212/28—Using a specific disk cache architecture
- G06F2212/283—Plural cache memories
- G06F2212/284—Plural cache memories being distributed
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- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Computer And Data Communications (AREA)
Abstract
Description
ローカル記憶装置24の一部とリモート記憶装置26の一部との間でRDFマッピングを提供することは、ローカル記憶装置24の論理装置に対するリモート・ミラーである、リモート記憶装置26の論理装置を設定することを含む。ホスト22は、ローカル記憶装置24の論理装置からデータを読み出し、且つ、そこに書き込み、RDFマッピングにより変更されたデータがローカル記憶装置24からリモート記憶装置26にRA30a−30c,32a−32c、およびRDFリンク29を用いて転送される。安定状態の動作では、リモート記憶装置26の論理装置はローカル記憶装置の論理装置のデータと同一のデータを含み、ホスト22によってアクセスされるローカル記憶装置24の論理装置は、「R1ボリューム」(または単に「R1」)と称され、R1ボリュームのデータのコピーを含むリモート記憶装置26の論理装置は「R2ボリューム」(または単に「R2」)と称される。ホストは、データをR1から読み出し、且つ、そこに書き込み、RDFはR1ボリュームからR2ボリュームへのデータの自動コピーおよび更新を取り扱う。
Claims (10)
- データ記憶装置への順序付けられた書き込みを処理する方法であって、
前記データ記憶装置のキャッシュのスロット内において第1のデータの部分を受信すること、
ハッシュ・テーブルを用いて、前記第1のデータの部分からのデータを含むキャッシュ・スロットと前記データ記憶装置の論理記憶装置の場所との間の相関を提供すること、
を備える方法。 - 請求項1に記載の方法であって、更に、
前記データ記憶装置の前記キャッシュのスロット内において第2のデータの部分を受信すること、
前記第1のデータの部分に対応する全てのデータが前記データ記憶装置に転送されたことを示すメッセージを受信すること、
を備える方法。 - 請求項2に記載の方法であって、更に、
前記メッセージの受信に応答して、前記第1のデータの部分から前記論理記憶装置にデータを記憶すること、
を備える方法。 - 請求項2に記載の方法であって、更に、
ハッシュ・テーブルを用いて、前記第2のデータの部分からのデータを含むキャッシュ・スロットと前記データ記憶装置の論理記憶装置の場所との間の相関を提供すること、
を備える方法。 - 請求項1に記載の方法において、前記ハッシュ・テーブルは、前記キャッシュのスロットに対するポインタのテーブルである、方法。
- 請求項5に記載の方法において、コリジョンに対応して、前記ハッシュ・テーブルのエントリーが第1のスロットへのポインタを含み、前記第1のスロットが第2のスロットへのポインタを含む、方法。
- データ記憶装置であって、
データを含む少なくとも一つのディスク・ドライブと、
前記少なくとも一つのディスク・ドライブに接続され、前記少なくとも一つのディスク・ドライブに記憶されるべきデータを受信する少なくとも一つのホスト・アダプタと、
前記少なくとも一つのディスク・ドライブおよび前記少なくとも一つのホスト・アダプタに接続され、前記データ記憶装置に記憶されるべきデータを受信する少なくとも一つのリモート・アダプタと、
を備え、前記データ記憶装置は、前記データ記憶装置のキャッシュのスロット内において第1のデータの部分を受信し、ハッシュ・テーブルを用いて、前記第1のデータの部分からのデータを含むキャッシュ・スロットと前記データ記憶装置の論理記憶装置の場所との間の相関を提供する、データ記憶装置。 - 請求項7に記載のデータ記憶装置において、該データ記憶装置は、前記第1のデータの部分を含むキャッシュ・スロットに対するポインタの環状にリンク付けされたリストを保持する、データ記憶装置。
- 請求項7に記載のデータ記憶装置において、該データ記憶装置は、該データ記憶装置の前記キャッシュのスロット内において第2のデータの部分を受信し、前記第1のデータの部分に対応する全てのデータが該データ記憶装置に転送されたことを示すメッセージを受信する、データ記憶装置。
- 請求項9に記載のデータ記憶装置において、該データ記憶装置は、前記メッセージの受信に応答して、前記第1のデータの部分からのデータを前記論理記憶装置に記憶する、データ記憶装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/956,493 US7114033B2 (en) | 2003-03-25 | 2004-10-01 | Handling data writes copied from a remote data storage device |
PCT/US2005/035201 WO2006039493A2 (en) | 2004-10-01 | 2005-09-30 | Virtual ordered writes |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2008515112A true JP2008515112A (ja) | 2008-05-08 |
Family
ID=36143082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007534801A Pending JP2008515112A (ja) | 2004-10-01 | 2005-09-30 | 仮想順序付け書き込み |
Country Status (5)
Country | Link |
---|---|
US (2) | US7114033B2 (ja) |
EP (1) | EP1805628A4 (ja) |
JP (1) | JP2008515112A (ja) |
CN (1) | CN101031891A (ja) |
WO (1) | WO2006039493A2 (ja) |
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2004
- 2004-10-01 US US10/956,493 patent/US7114033B2/en not_active Expired - Lifetime
-
2005
- 2005-09-30 JP JP2007534801A patent/JP2008515112A/ja active Pending
- 2005-09-30 EP EP05801830A patent/EP1805628A4/en not_active Withdrawn
- 2005-09-30 WO PCT/US2005/035201 patent/WO2006039493A2/en active Search and Examination
- 2005-09-30 CN CNA2005800327667A patent/CN101031891A/zh active Pending
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2006
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JPS62108342A (ja) * | 1985-11-06 | 1987-05-19 | Alps Electric Co Ltd | デイスクキヤツシユ制御方式 |
JPS63247853A (ja) * | 1987-03-30 | 1988-10-14 | インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン | Dasdキヤツシユ管理方法 |
JP2004213647A (ja) * | 2002-12-27 | 2004-07-29 | Internatl Business Mach Corp <Ibm> | データ記憶装置およびシステム用のログ構造の書込みキャッシュ |
US20040193802A1 (en) * | 2003-03-25 | 2004-09-30 | Emc Corporation | Reading virtual ordered writes at local storage device |
JP2006523890A (ja) * | 2003-03-25 | 2006-10-19 | イーエムシー コーポレイション | 仮想順序付け書き込み |
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US20070038841A1 (en) | 2007-02-15 |
US7386668B2 (en) | 2008-06-10 |
US20050066122A1 (en) | 2005-03-24 |
US7114033B2 (en) | 2006-09-26 |
EP1805628A2 (en) | 2007-07-11 |
WO2006039493A2 (en) | 2006-04-13 |
CN101031891A (zh) | 2007-09-05 |
WO2006039493A3 (en) | 2006-07-27 |
EP1805628A4 (en) | 2008-12-31 |
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