WO2006088727A3 - Direct data file storage in flash memories - Google Patents

Direct data file storage in flash memories Download PDF

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Publication number
WO2006088727A3
WO2006088727A3 PCT/US2006/004658 US2006004658W WO2006088727A3 WO 2006088727 A3 WO2006088727 A3 WO 2006088727A3 US 2006004658 W US2006004658 W US 2006004658W WO 2006088727 A3 WO2006088727 A3 WO 2006088727A3
Authority
WO
WIPO (PCT)
Prior art keywords
memory
host
file
data file
file storage
Prior art date
Application number
PCT/US2006/004658
Other languages
French (fr)
Other versions
WO2006088727A2 (en
WO2006088727A9 (en
Inventor
Alan Welsh Sinclair
Peter John Smith
Original Assignee
Sandisk Corp
Alan Welsh Sinclair
Peter John Smith
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 Sandisk Corp, Alan Welsh Sinclair, Peter John Smith filed Critical Sandisk Corp
Priority to EP06734695.7A priority Critical patent/EP1851638B1/en
Priority to CN2006800092223A priority patent/CN101164037B/en
Priority to JP2007556213A priority patent/JP2008530710A/en
Publication of WO2006088727A2 publication Critical patent/WO2006088727A2/en
Publication of WO2006088727A3 publication Critical patent/WO2006088727A3/en
Publication of WO2006088727A9 publication Critical patent/WO2006088727A9/en
Priority to IL185174A priority patent/IL185174A0/en

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
    • 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
    • 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
    • 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
    • G06F2212/7205—Cleaning, compaction, garbage collection, erase control

Abstract

Host system data files are written directly to a large erase block flash memory system with a unique identification of each file and offsets of data within the file but without the use of any intermediate logical addresses or a virtual address space for the memory. Directory information of where the files are stored in the memory is maintained within the memory system by its controller, rather than by the host. The file based interface between the host and memory systems allows the memory system controller to utilize the data storage blocks within the memory with increased efficiency.
PCT/US2006/004658 2005-02-16 2006-02-08 Direct data file storage in flash memories WO2006088727A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP06734695.7A EP1851638B1 (en) 2005-02-16 2006-02-08 Direct data file storage in flash memories
CN2006800092223A CN101164037B (en) 2005-02-16 2006-02-08 Direct data file storage in flash memories
JP2007556213A JP2008530710A (en) 2005-02-16 2006-02-08 Direct data file storage in flash memory
IL185174A IL185174A0 (en) 2005-02-16 2007-08-09 Direct data file storage in flash memories

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/060,249 2005-02-16
US11/060,249 US7877539B2 (en) 2005-02-16 2005-02-16 Direct data file storage in flash memories

Publications (3)

Publication Number Publication Date
WO2006088727A2 WO2006088727A2 (en) 2006-08-24
WO2006088727A3 true WO2006088727A3 (en) 2006-12-14
WO2006088727A9 WO2006088727A9 (en) 2007-04-26

Family

ID=36759001

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/004658 WO2006088727A2 (en) 2005-02-16 2006-02-08 Direct data file storage in flash memories

Country Status (8)

Country Link
US (1) US7877539B2 (en)
EP (1) EP1851638B1 (en)
JP (1) JP2008530710A (en)
KR (1) KR101042588B1 (en)
CN (1) CN101164037B (en)
IL (1) IL185174A0 (en)
TW (1) TWI400608B (en)
WO (1) WO2006088727A2 (en)

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