APPARATUS, SYSTEM, AND METHOD FOR EFFICIENT MAPPING OF VIRTUAL AND PHYSICAL ADDRESSES
    13.
    发明申请
    APPARATUS, SYSTEM, AND METHOD FOR EFFICIENT MAPPING OF VIRTUAL AND PHYSICAL ADDRESSES 有权
    用于有效地映射虚拟和物理地址的设备,系统和方法

    公开(公告)号:US20090150641A1

    公开(公告)日:2009-06-11

    申请号:US12098434

    申请日:2008-04-06

    IPC分类号: G06F9/26

    摘要: An apparatus, system, and method are disclosed for efficiently mapping virtual and physical addresses. A forward mapping module uses a forward map to identify physical addresses of data of a data segment from a virtual address. The data segment is identified in a storage request. The virtual addresses include discrete addresses within a virtual address space where the virtual addresses sparsely populate the virtual address space. A reverse mapping module uses a reverse map to determine a virtual address of a data segment from a physical address. The reverse map maps the data storage device into erase regions such that a portion of the reverse map spans an erase region of the data storage device erased together during a storage space recovery operation. A storage space recovery module uses the reverse map to identify valid data in an erase region prior to an operation to recover the erase region.

    摘要翻译: 公开了用于有效地映射虚拟和物理地址的装置,系统和方法。 前向映射模块使用转发映射来从虚拟地址识别数据段的数据的物理地址。 在存储请求中识别数据段。 虚拟地址包括虚拟地址空间内的离散地址,虚拟地址稀疏地填充虚拟地址空间。 反向映射模块使用反向映射来确定物理地址的数据段的虚拟地址。 反向映射将数据存储设备映射到擦除区域,使得在存储空间恢复操作期间,反向映射的一部分跨越数据存储设备的擦除区域被一起擦除。 在恢复擦除区域的操作之前,存储空间恢复模块使用反向映射来识别擦除区域中的有效数据。

    Apparatus, system, and method for efficient mapping of virtual and physical addresses
    18.
    发明授权
    Apparatus, system, and method for efficient mapping of virtual and physical addresses 有权
    用于有效映射虚拟和物理地址的装置,系统和方法

    公开(公告)号:US08195912B2

    公开(公告)日:2012-06-05

    申请号:US12098434

    申请日:2008-04-06

    IPC分类号: G06F12/00 G06F13/00 G06F13/28

    摘要: An apparatus, system, and method are disclosed for efficiently mapping virtual and physical addresses. A forward mapping module uses a forward map to identify physical addresses of data of a data segment from a virtual address. The data segment is identified in a storage request. The virtual addresses include discrete addresses within a virtual address space where the virtual addresses sparsely populate the virtual address space. A reverse mapping module uses a reverse map to determine a virtual address of a data segment from a physical address. The reverse map maps the data storage device into erase regions such that a portion of the reverse map spans an erase region of the data storage device erased together during a storage space recovery operation. A storage space recovery module uses the reverse map to identify valid data in an erase region prior to an operation to recover the erase region.

    摘要翻译: 公开了用于有效地映射虚拟和物理地址的装置,系统和方法。 前向映射模块使用转发映射来从虚拟地址识别数据段的数据的物理地址。 在存储请求中识别数据段。 虚拟地址包括虚拟地址空间内的离散地址,虚拟地址稀疏地填充虚拟地址空间。 反向映射模块使用反向映射来确定物理地址的数据段的虚拟地址。 反向映射将数据存储设备映射到擦除区域,使得在存储空间恢复操作期间,反向映射的一部分跨越数据存储设备的擦除区域被一起擦除。 在恢复擦除区域的操作之前,存储空间恢复模块使用反向映射来识别擦除区域中的有效数据。

    APPARATUS, SYSTEM, AND METHOD FOR EFFICIENT MAPPING OF VIRTUAL AND PHYSICAL ADDRESSES
    19.
    发明申请
    APPARATUS, SYSTEM, AND METHOD FOR EFFICIENT MAPPING OF VIRTUAL AND PHYSICAL ADDRESSES 审中-公开
    用于有效地映射虚拟和物理地址的设备,系统和方法

    公开(公告)号:US20120233396A1

    公开(公告)日:2012-09-13

    申请号:US13480791

    申请日:2012-05-25

    IPC分类号: G06F12/08

    摘要: An apparatus, system, and method are disclosed for efficiently mapping virtual and physical addresses. A forward mapping module uses a forward map to identify physical addresses of data of a data segment from a virtual address. The data segment is identified in a storage request. The virtual addresses include discrete addresses within a virtual address space where the virtual addresses sparsely populate the virtual address space. A reverse mapping module uses a reverse map to determine a virtual address of a data segment from a physical address. The reverse map maps the data storage device into erase regions such that a portion of the reverse map spans an erase region of the data storage device erased together during a storage space recovery operation. A storage space recovery module uses the reverse map to identify valid data in an erase region prior to an operation to recover the erase region.

    摘要翻译: 公开了用于有效地映射虚拟和物理地址的装置,系统和方法。 前向映射模块使用转发映射来从虚拟地址识别数据段的数据的物理地址。 在存储请求中识别数据段。 虚拟地址包括虚拟地址空间内的离散地址,虚拟地址稀疏地填充虚拟地址空间。 反向映射模块使用反向映射来确定物理地址的数据段的虚拟地址。 反向映射将数据存储设备映射到擦除区域,使得在存储空间恢复操作期间,反向映射的一部分跨越数据存储设备的擦除区域被一起擦除。 在恢复擦除区域的操作之前,存储空间恢复模块使用反向映射来识别擦除区域中的有效数据。