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    • 1. 发明授权
    • Method and system for managing a NAND flash memory by paging segments of a logical to physical address map to a non-volatile memory
    • 用于通过将逻辑到物理地址映射的片段寻址到非易失性存储器来管理NAND闪存的方法和系统
    • US08612666B2
    • 2013-12-17
    • US12495573
    • 2009-06-30
    • Robert J. Royer, Jr.Robert FaberBrent Chartrand
    • Robert J. Royer, Jr.Robert FaberBrent Chartrand
    • G06F12/00G06F12/10
    • G06F12/0246G06F2212/7201G06F2212/7207
    • A method and system to facilitate paging of one or more segments of a logical-to-physical (LTP) address mapping structure, such as a table, to a non-volatile memory, such as a NAND flash memory. The LTP address mapping structure is part of an indirection system map associated with the non-volatile memory. By allowing one or more segments of the LTP address mapping structure to be paged to the non-volatile memory, the amount of volatile memory required to store the LTP address mapping structure is reduced while maintaining the benefits of the LTP address mapping structure. One or more segments of the logical to physical address mapping structure may be cached in volatile memory, and a size of each segment may be the same as or a multiple of a page size of the NAND flash memory. A lookup or segment table may be provided to indicate a location of each segment and may be optimized for sequential physical addresses.
    • 一种有助于将诸如表的逻辑到物理(LTP)地址映射结构的一个或多个段的寻呼的方法和系统提供给诸如NAND闪存之类的非易失性存储器。 LTP地址映射结构是与非易失性存储器相关联的间接系统映射的一部分。 通过允许LTP地址映射结构的一个或多个段被分页到非易失性存储器,减少存储LTP地址映射结构所需的易失性存储器的量,同时保持LTP地址映射结构的优点。 逻辑到物理地址映射结构的一个或多个段可以被缓存在易失性存储器中,并且每个段的大小可以与NAND闪速存储器的页面大小相同或倍数。 可以提供查找或分段表以指示每个分段的位置并且可以针对顺序物理地址进行优化。
    • 7. 发明授权
    • Banded indirection for nonvolatile memory devices
    • 非易失性存储器件的带状间接
    • US08069299B2
    • 2011-11-29
    • US12165562
    • 2008-06-30
    • Brent Chartrand
    • Brent Chartrand
    • G06F12/00
    • G06F12/0246G06F2212/7201G06F2212/7205G06F2212/7211
    • Methods, apparatuses, and computer program products that enable banded indirection for nonvolatile memory devices, such as flash memory devices, are disclosed. One or more embodiments comprise a method for performing banded indirection when accessing data of a nonvolatile device. The methods comprise tracking fragmentation of a band of physical addresses of the nonvolatile memory device, storing a physical address of the band, and accessing data of a logical address of the band via the stored physical address based on the fragmentation of the band. Some embodiments comprise apparatuses for accessing data of nonvolatile devices using banded indirection. The embodiments comprise a nonvolatile memory element to store data, wherein the nonvolatile memory element has bands of physical addresses, a fragmentation detector to detect fragmentation of a band of the nonvolatile memory, and a data access module to access data of the band via a physical address based on the fragmentation.
    • 公开了用于非易失性存储器件(例如闪速存储器件)的带状间接的方法,装置和计算机程序产品。 一个或多个实施例包括当访问非易失性设备的数据时执行带状间接的方法。 这些方法包括跟踪非易失性存储器件的物理地址带的碎片化,存储该带的物理地址,以及基于频带的分段通过所存储的物理地址访问该频带的逻辑地址的数据。 一些实施例包括使用带状间接访问非易失性设备的数据的装置。 这些实施例包括用于存储数据的非易失性存储器元件,其中非易失性存储器元件具有物理地址带,用于检测非易失性存储器的频带的分段的分段检测器,以及数据访问模块,用于通过物理地访问频带的数据 基于碎片的地址。