JP2004127295A - 仮想記憶システムおよびその動作方法 - Google Patents
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- JP2004127295A JP2004127295A JP2003340093A JP2003340093A JP2004127295A JP 2004127295 A JP2004127295 A JP 2004127295A JP 2003340093 A JP2003340093 A JP 2003340093A JP 2003340093 A JP2003340093 A JP 2003340093A JP 2004127295 A JP2004127295 A JP 2004127295A
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- 238000000034 method Methods 0.000 title claims description 25
- 238000013507 mapping Methods 0.000 claims description 45
- 238000000605 extraction Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims 1
- 230000009849 deactivation Effects 0.000 description 12
- 238000013500 data storage Methods 0.000 description 8
- 239000000284 extract Substances 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
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- 230000004913 activation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
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- 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
- G06F12/10—Address translation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/901—Indexing; Data structures therefor; Storage structures
- G06F16/9024—Graphs; Linked lists
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0604—Improving or facilitating administration, e.g. storage management
- G06F3/0607—Improving or facilitating administration, e.g. storage management by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0662—Virtualisation aspects
- G06F3/0665—Virtualisation aspects at area level, e.g. provisioning of virtual or logical volumes
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0683—Plurality of storage devices
- G06F3/0689—Disk arrays, e.g. RAID, JBOD
Abstract
【解決手段】 仮想記憶システム10は、データを記憶するように構成された物理記憶空間24と、物理記憶空間24内に記憶されたデータの表現をホスト20に提供するように適合された仮想記憶空間22と、物理記憶空間24と仮想記憶空間22の間のアドレス指定を実装するために利用される複数のポインタ34を記憶するように構成されたメモリ18と、メモリ18から前記ポインタ34のうち選択されたものを抽出し、第1の時点において前記選択されたポインタをメモリ18とは異なる別の記憶位置に提供し、前記別の記憶位置から前記選択されたポインタ34を抽出し、前記第1の時点後の第2の時点において前記選択されたポインタ34を前記メモリ18に提供するように構成されたコントローラと、を備える。
【選択図】図1
Description
Claims (10)
- データを記憶するように構成された物理記憶空間と、
該物理記憶空間内に記憶されている前記データ表現をホストに提供するように適合された仮想記憶空間と、
前記物理記憶空間と前記仮想記憶空間との間のアドレス指定の実施に利用される複数のポインタを記憶するように構成されたメモリと、
該メモリから前記ポインタのうち選択されたものを抽出し、第1の時点において、前記選択されたポインタを前記メモリとは異なる別の記憶位置に提供し、前記別の記憶位置から前記選択されたポインタを抽出し、前記第1の時点後の第2の時点において、前記選択されたポインタを前記メモリに提供するように構成されたコントローラと、
を備える仮想記憶システム。 - 前記コントローラは、前記抽出の前に、基準を用いて前記選択されたポインタを識別するように構成された請求項1に記載の仮想記憶システム。
- 前記コントローラは、所定の時間期間中に前記選択されたポインタに関する入出力要求を受け取らないことを含む前記基準に応答して識別するように構成された請求項2に記載の仮想記憶システム。
- 前記コントローラは、前記選択されたポインタが前記仮想記憶空間のスナップショットボリュームに関連することを含む前記基準に応じて識別するように構成された請求項2に記載の仮想記憶システム。
- 前記コントローラは、前記選択されたポインタが前記仮想記憶空間の通常のボリュームに関連しないことを含む前記基準に応じて識別するように構成された請求項2に記載の仮想記憶システム。
- 仮想記憶システムの動作方法であって、
複数の仮想記憶位置を含む仮想記憶空間を設けることと、
データを記憶するように構成された複数の物理記憶位置を含む物理記憶空間を設けることと、
前記仮想記憶位置のそれぞれを前記物理記憶位置のそれぞれに関連付けるマッピングシステムを含むメモリを設けることと、
第1の時点において、前記メモリから前記マッピングシステムの少なくとも一部を抽出することと、
前記第1の時点後の第2の時点において、前記マッピングシステムの前記抽出された部分を前記メモリに提供することと、
を含む仮想記憶システムの動作方法。 - 前記物理記憶空間を設けることは、複数の物理記憶ボリュームを設けることを含み、
前記抽出された部分を提供することは、前記マッピングシステムの前記抽出された部分を前記物理記憶ボリュームの少なくとも1つに提供することを含む、請求項6に記載の仮想記憶システムの動作方法。 - 前記メモリを設けることは複数のポインタを含む前記マッピングシステムを備えた前記メモリを設けることを含み、
前記抽出することは、前記ポインタのいくつかを抽出することを含む、請求項6または7に記載の仮想記憶システムの動作方法。 - 前記抽出後に、前記抽出されたポインタの位置で前記メモリに新しいポインタを書き込むことをさらに含む、請求項6乃至8のいずれか一項に記載の仮想記憶システムの動作方法。
- 前記仮想記憶空間を設けることは、複数の仮想記憶ボリュームを設けることを含み、
前記方法は、前記仮想記憶ボリュームの1つを識別することをさらに含み、
前記抽出することは、少なくとも、前記仮想記憶ボリュームのうち前記識別されたものに対応する前記マッピングシステムの部分を抽出することを含む、請求項6乃至9のいずれか一項に記載の仮想記憶システムの動作方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US10/264,525 US6996582B2 (en) | 2002-10-03 | 2002-10-03 | Virtual storage systems and virtual storage system operational methods |
Publications (2)
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JP2004127295A true JP2004127295A (ja) | 2004-04-22 |
JP4222917B2 JP4222917B2 (ja) | 2009-02-12 |
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JP2003340093A Expired - Lifetime JP4222917B2 (ja) | 2002-10-03 | 2003-09-30 | 仮想記憶システムおよびその動作方法 |
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JP (1) | JP4222917B2 (ja) |
Families Citing this family (21)
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US9489150B2 (en) | 2003-08-14 | 2016-11-08 | Dell International L.L.C. | System and method for transferring data between different raid data storage types for current data and replay data |
JP2007502470A (ja) | 2003-08-14 | 2007-02-08 | コンペレント・テクノロジーズ | 仮想ディスク・ドライブのシステムおよび方法 |
JP4325524B2 (ja) * | 2004-09-29 | 2009-09-02 | 日本電気株式会社 | スイッチ装置とシステム並びにバックアップ及びリストア方法とプログラム |
US20070022117A1 (en) * | 2005-07-21 | 2007-01-25 | Keohane Susann M | Accessing file system snapshots directly within a file system directory |
CN102880424B (zh) * | 2006-05-24 | 2015-10-28 | 克姆佩棱特科技公司 | 用于raid管理、重新分配以及重新分段的系统和方法 |
CN101467122B (zh) * | 2006-05-24 | 2012-07-04 | 克姆佩棱特科技公司 | 数据分级磁盘位置优化系统和方法 |
US7921077B2 (en) * | 2006-06-29 | 2011-04-05 | Netapp, Inc. | System and method for managing data deduplication of storage systems utilizing persistent consistency point images |
CN100530069C (zh) * | 2006-10-13 | 2009-08-19 | 中国科学院计算技术研究所 | 一种非同质存储设备的虚拟化系统及方法 |
US8028062B1 (en) * | 2007-12-26 | 2011-09-27 | Emc Corporation | Non-disruptive data mobility using virtual storage area networks with split-path virtualization |
KR101478619B1 (ko) * | 2008-02-27 | 2015-01-06 | 삼성전자주식회사 | 가상화 기술을 이용한 데이터 입출력 방법 및 장치 |
TWI385667B (zh) * | 2008-06-26 | 2013-02-11 | Phison Electronics Corp | 用於快閃記憶體的資料管理方法、儲存系統與控制器 |
JP5026375B2 (ja) * | 2008-09-09 | 2012-09-12 | 株式会社日立製作所 | ストレージ装置及びストレージ装置の制御方法 |
EP2396717A1 (en) | 2009-02-11 | 2011-12-21 | Infinidat Ltd | Virtualized storage system and method of operating it |
SE534142C2 (sv) * | 2009-06-16 | 2011-05-10 | Ikonoskop Ab | Förfarande och system för lagring av data |
US8468292B2 (en) * | 2009-07-13 | 2013-06-18 | Compellent Technologies | Solid state drive data storage system and method |
US8918619B2 (en) * | 2009-10-04 | 2014-12-23 | Infinidat Ltd. | Virtualized storage system and method of operating thereof |
US9146851B2 (en) | 2012-03-26 | 2015-09-29 | Compellent Technologies | Single-level cell and multi-level cell hybrid solid state drive |
CN102866963B (zh) * | 2012-09-18 | 2015-07-22 | 广西柳工机械股份有限公司 | 控制器数据存储与读取方法 |
US9984083B1 (en) | 2013-02-25 | 2018-05-29 | EMC IP Holding Company LLC | Pluggable storage system for parallel query engines across non-native file systems |
US9454548B1 (en) | 2013-02-25 | 2016-09-27 | Emc Corporation | Pluggable storage system for distributed file systems |
US10853307B2 (en) * | 2017-07-28 | 2020-12-01 | Dell Products, L.P. | System and method for a host application to access and verify contents within non-volatile storage of an information handling system |
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EP0417293B1 (en) * | 1988-12-14 | 1998-08-12 | Sony Corporation | Data management system |
US5392244A (en) * | 1993-08-19 | 1995-02-21 | Hewlett-Packard Company | Memory systems with data storage redundancy management |
US5613113A (en) * | 1993-10-08 | 1997-03-18 | International Business Machines Corporation | Consistent recreation of events from activity logs |
US6192444B1 (en) * | 1998-01-05 | 2001-02-20 | International Business Machines Corporation | Method and system for providing additional addressable functional space on a disk for use with a virtual data storage subsystem |
US6658548B1 (en) * | 2000-01-10 | 2003-12-02 | International Business Machines Corporation | System and method in a data processing system for extracting data from a protected region of memory |
US6532527B2 (en) * | 2000-06-19 | 2003-03-11 | Storage Technology Corporation | Using current recovery mechanisms to implement dynamic mapping operations |
US6742101B2 (en) * | 2001-06-29 | 2004-05-25 | Fujitsu Limited | Scalable and flexible method for address space decoding in a multiple node computer system |
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- 2002-10-03 US US10/264,525 patent/US6996582B2/en not_active Expired - Lifetime
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- 2003-09-30 JP JP2003340093A patent/JP4222917B2/ja not_active Expired - Lifetime
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US6996582B2 (en) | 2006-02-07 |
US20040068522A1 (en) | 2004-04-08 |
JP4222917B2 (ja) | 2009-02-12 |
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