DE10341618A1 - Verwaltung gelöschter Blöcke in Flash-Speichern - Google Patents

Verwaltung gelöschter Blöcke in Flash-Speichern Download PDF

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Publication number
DE10341618A1
DE10341618A1 DE10341618A DE10341618A DE10341618A1 DE 10341618 A1 DE10341618 A1 DE 10341618A1 DE 10341618 A DE10341618 A DE 10341618A DE 10341618 A DE10341618 A DE 10341618A DE 10341618 A1 DE10341618 A1 DE 10341618A1
Authority
DE
Germany
Prior art keywords
memory block
block addresses
management
flash memory
addressable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE10341618A
Other languages
English (en)
Inventor
Reinhard Kuehne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HYPERSTONE GMBH, 78467 KONSTANZ, DE
Original Assignee
Hyperstone AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyperstone AG filed Critical Hyperstone AG
Priority to DE10341618A priority Critical patent/DE10341618A1/de
Priority to US10/571,590 priority patent/US20090125668A1/en
Priority to KR1020067004108A priority patent/KR20060130013A/ko
Priority to CNA2004800260130A priority patent/CN1849590A/zh
Priority to CA002536992A priority patent/CA2536992A1/en
Priority to PCT/EP2004/051782 priority patent/WO2005026963A1/de
Priority to EP04766485A priority patent/EP1665053A1/de
Priority to JP2006530229A priority patent/JP2007505415A/ja
Priority to TW093126506A priority patent/TW200519596A/zh
Publication of DE10341618A1 publication Critical patent/DE10341618A1/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • G06F12/0223—User address space allocation, e.g. contiguous or non contiguous base addressing
    • G06F12/023—Free address space management
    • G06F12/0238—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory
    • G06F12/0246—Memory management in non-volatile memory, e.g. resistive RAM or ferroelectric memory in block erasable memory, e.g. flash memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • 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
    • G06F2212/72—Details relating to flash memory management
    • G06F2212/7201—Logical to physical mapping or translation of blocks or pages
    • 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
    • G06F2212/72—Details relating to flash memory management
    • G06F2212/7203—Temporary buffering, e.g. using volatile buffer or dedicated buffer blocks
    • 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
    • G06F2212/72—Details relating to flash memory management
    • G06F2212/7205—Cleaning, compaction, garbage collection, erase control
    • 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
    • G06F2212/72—Details relating to flash memory management
    • G06F2212/7209—Validity control, e.g. using flags, time stamps or sequence numbers

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Read Only Memory (AREA)
  • Memory System (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)

Abstract

Die Erfindung beschreibt ein Verfahren zur Verwaltung des Löschens in einem Speichersystem mit einzeln löschbaren, mit realen Speicherblockadressen (SBA) adressierbaren Speicherblöcken (SB), die in eine Vielzahl von beschreibbaren Sektoren gegliedert sind, und die durch eine Adressumsetzung mittels einer Zuordnertabelle (ZT) von logischen Blockadressen (LBA) in jeweils eine der realen Speicherblockadressen (SBA) adressierbar sind, wobei die Zuordnertabelle (ZT) mindestens in einen Nutzdatenbereich (NB) und in einen Bufferblockbereich (BB) gegliedert ist, und wobei zu jedem Speicherblock (SB) in der Zuordnertabelle (ZT) ein erster Merker "erased" (ER) über den physikalischen Löschzustand und ein zweiter Merker "content erased" (CER) über den logischen Löschzustand mitgeführt wird.
DE10341618A 2003-09-10 2003-09-10 Verwaltung gelöschter Blöcke in Flash-Speichern Withdrawn DE10341618A1 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE10341618A DE10341618A1 (de) 2003-09-10 2003-09-10 Verwaltung gelöschter Blöcke in Flash-Speichern
US10/571,590 US20090125668A1 (en) 2003-09-10 2004-08-12 Management of erased blocks in flash memories
KR1020067004108A KR20060130013A (ko) 2003-09-10 2004-08-12 플래쉬 메모리 내의 삭제 가능한 블록의 관리
CNA2004800260130A CN1849590A (zh) 2003-09-10 2004-08-12 管理闪存内被擦除的块
CA002536992A CA2536992A1 (en) 2003-09-10 2004-08-12 Management of erased blocks in flash memories
PCT/EP2004/051782 WO2005026963A1 (de) 2003-09-10 2004-08-12 Verwaltung gelöschter blöcke in flash-speichern
EP04766485A EP1665053A1 (de) 2003-09-10 2004-08-12 Verwaltung gel schter bl cke in flash-speichern
JP2006530229A JP2007505415A (ja) 2003-09-10 2004-08-12 フラッシュメモリにおける削除されたブロックの管理
TW093126506A TW200519596A (en) 2003-09-10 2004-09-02 Management method for eliminating memory block in flash memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10341618A DE10341618A1 (de) 2003-09-10 2003-09-10 Verwaltung gelöschter Blöcke in Flash-Speichern

Publications (1)

Publication Number Publication Date
DE10341618A1 true DE10341618A1 (de) 2005-05-04

Family

ID=34305636

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10341618A Withdrawn DE10341618A1 (de) 2003-09-10 2003-09-10 Verwaltung gelöschter Blöcke in Flash-Speichern

Country Status (9)

Country Link
US (1) US20090125668A1 (de)
EP (1) EP1665053A1 (de)
JP (1) JP2007505415A (de)
KR (1) KR20060130013A (de)
CN (1) CN1849590A (de)
CA (1) CA2536992A1 (de)
DE (1) DE10341618A1 (de)
TW (1) TW200519596A (de)
WO (1) WO2005026963A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1936866A (zh) * 2006-08-18 2007-03-28 福昭科技（深圳）有限公司 具有资料还原功能的闪存记忆体存储机制
CN101105774B (zh) * 2006-10-26 2010-08-11 福昭科技（深圳）有限公司 闪存记忆体在进行数据存取时的逻辑与物理地址转换方法
US7515500B2 (en) * 2006-12-20 2009-04-07 Nokia Corporation Memory device performance enhancement through pre-erase mechanism
US20100318723A1 (en) * 2007-02-23 2010-12-16 Masahiro Nakanishi Memory controller, nonvolatile memory device, and nonvolatile memory system
JP4164118B1 (ja) * 2008-03-26 2008-10-08 眞澄 鈴木 フラッシュメモリを用いた記憶装置
KR100970537B1 (ko) * 2008-11-20 2010-07-16 서울시립대학교 산학협력단 Ｓｓｄ 관리 장치 및 방법
US20100131726A1 (en) * 2008-11-26 2010-05-27 Nokia Corporation Methods, apparatuses, and computer program products for enhancing memory erase functionality
US8407401B2 (en) 2008-11-26 2013-03-26 Core Wireless Licensing S.A.R.L. Methods, apparatuses, and computer program products for enhancing memory erase functionality
KR101601790B1 (ko) 2009-09-22 2016-03-21 삼성전자주식회사 암호키 선택장치를 구비하는 스토리지 시스템 및 암호 키 선택방법
TWI414940B (zh) * 2009-12-30 2013-11-11 Phison Electronics Corp 區塊管理與資料寫入方法、快閃記憶體儲存系統與控制器
TWI475385B (zh) * 2012-03-14 2015-03-01 Phison Electronics Corp 程式化記憶胞與資料讀取方法、記憶體控制器與儲存裝置
KR20140056657A (ko) 2012-10-30 2014-05-12 삼성전자주식회사 메인 메모리를 구비한 컴퓨터 시스템 및 그것의 제어 방법
TWI557561B (zh) * 2016-02-05 2016-11-11 群聯電子股份有限公司 記憶體管理方法、記憶體控制電路單元與記憶體儲存裝置
US11288007B2 (en) * 2019-05-16 2022-03-29 Western Digital Technologies, Inc. Virtual physical erase of a memory of a data storage device
US11581048B2 (en) * 2020-11-30 2023-02-14 Cigent Technology, Inc. Method and system for validating erasure status of data blocks

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485595A (en) * 1993-03-26 1996-01-16 Cirrus Logic, Inc. Flash memory mass storage architecture incorporating wear leveling technique without using cam cells
JP3464836B2 (ja) * 1995-01-19 2003-11-10 富士通株式会社 記憶装置のメモリ管理装置
US5838614A (en) * 1995-07-31 1998-11-17 Lexar Microsystems, Inc. Identification and verification of a sector within a block of mass storage flash memory
JPH0997205A (ja) * 1995-09-28 1997-04-08 Canon Inc フラッシュｒｏｍ管理方法及び装置及びコンピュータ制御装置
US5953737A (en) * 1997-03-31 1999-09-14 Lexar Media, Inc. Method and apparatus for performing erase operations transparent to a solid state storage system
JP3718578B2 (ja) * 1997-06-25 2005-11-24 ソニー株式会社 メモリ管理方法及びメモリ管理装置
JP2000227871A (ja) * 1999-02-05 2000-08-15 Seiko Epson Corp 不揮発性記憶装置、その制御方法、および、情報記録媒体

Also Published As

Publication number Publication date
KR20060130013A (ko) 2006-12-18
CA2536992A1 (en) 2005-03-24
WO2005026963A1 (de) 2005-03-24
TW200519596A (en) 2005-06-16
JP2007505415A (ja) 2007-03-08
US20090125668A1 (en) 2009-05-14
EP1665053A1 (de) 2006-06-07
CN1849590A (zh) 2006-10-18

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: HYPERSTONE GMBH, 78467 KONSTANZ, DE

8110 Request for examination paragraph 44
R120 Application withdrawn or ip right abandoned

Effective date: 20121120