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    • 4. 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。
    • 5. 发明授权
    • Cache write integrity logging
    • 缓存写入完整性日志记录
    • US08244970B2
    • 2012-08-14
    • US13074870
    • 2011-03-29
    • Robert J. Royer, Jr.Richard L. Coulson
    • Robert J. Royer, Jr.Richard L. Coulson
    • G06F12/00
    • G06F12/0804G06F11/1417G06F11/1471G06F12/0802
    • An apparatus, as well as systems, methods, and articles can operate to record the address of write operations to a memory cached by a non-volatile cache prior to executing an operating system cache driver. In an embodiment, a non-volatile cache may be implemented by creating a device option read only memory (ROM), or modifying the associated computer basic input-output system (BIOS) to trap software interrupts associated with disk and other media access requests. Associated addresses, such as logical block addresses, can be stored in a log for data that is modified. The resulting log can be stored in a non-volatile medium, including the cache itself. If the available log space is not large enough to record all write activity prior to loading operating system drivers, a flag may be set to indicate the overrun condition.
    • 在执行操作系统高速缓存驱动器之前,设备以及系统,方法和文章可以操作以将写入操作的地址记录到由非易失性高速缓存的存储器中。 在一个实施例中,可以通过创建设备选项只读存储器(ROM)或修改相关联的计算机基本输入 - 输出系统(BIOS)来捕获与磁盘和其他媒体访问请求相关联的软件中断来实现非易失性高速缓存。 关联的地址,例如逻辑块地址,可以存储在修改的数据的日志中。 所得到的日志可以存储在非易失性介质中,包括缓存本身。 如果可用的日志空间不足以在加载操作系统驱动程序之前记录所有写入活动,则可以设置一个标志来指示超限状态。