Memory system having a plurality of writing mode
    1.
    发明授权
    Memory system having a plurality of writing mode 有权
    具有多个写入模式的存储器系统

    公开(公告)号:US08832357B2

    公开(公告)日:2014-09-09

    申请号:US13038681

    申请日:2011-03-02

    IPC分类号: G06F12/00 G06F12/02

    摘要: According to one embodiment, a memory system includes a non-volatile semiconductor memory, a block management unit, and a transcription unit. The semiconductor memory includes a plurality of blocks to which data can be written in both the first mode and the second mode. The block management unit manages a block that stores therein no valid data as a free block. When the number of free blocks managed by the block management unit is smaller than or equal to a predetermined threshold value, the transcription unit selects one or more used blocks that stores therein valid data as transcription source blocks and transcribes valid data stored in the transcription source blocks to free blocks in the second mode.

    摘要翻译: 根据一个实施例,存储器系统包括非易失性半导体存储器,块管理单元和转录单元。 半导体存储器包括能够在第一模式和第二模式中写入数据的多个块。 块管理单元管理其中没有有效数据作为空闲块的块。 当由块管理单元管理的空闲块的数量小于或等于预定阈值时,转录单元选择一个或多个使用存储有效数据的块作为转录源块并转录存储在转录源中的有效数据 在第二种模式下阻止空闲块。

    Controller, storage apparatus, and computer program product
    2.
    发明授权
    Controller, storage apparatus, and computer program product 有权
    控制器,存储设备和计算机程序产品

    公开(公告)号:US08549388B2

    公开(公告)日:2013-10-01

    申请号:US13035194

    申请日:2011-02-25

    IPC分类号: H03M13/00

    摘要: According to one embodiment, a controller controls writing into and reading from a storage apparatus that includes a first data-storage unit and a second data-storage unit. The second data-storage unit stores user data and parity data of the user data. The first data-storage unit stores the parity data. The controller includes a parity updating unit and a parity writing unit. When parity data is updated, the parity updating unit writes the updated parity data into the first data-storage unit. When a certain requirement is satisfied, the parity writing unit reads the parity data written in the first data-storage unit, and writes the parity data thus read into the second data-storage unit.

    摘要翻译: 根据一个实施例,控制器控制对包括第一数据存储单元和第二数据存储单元的存储装置的写入和读取。 第二数据存储单元存储用户数据和用户数据的奇偶校验数据。 第一数据存储单元存储奇偶校验数据。 控制器包括奇偶校验更新单元和奇偶校验写入单元。 当更新奇偶校验数据时,奇偶校验更新单元将更新的奇偶校验数据写入第一数据存储单元。 当满足特定要求时,奇偶写入单元读取写入第一数据存储单元中的奇偶校验数据,并将读出的奇偶校验数据写入第二数据存储单元。

    CONTROLLER, STORAGE APPARATUS, AND COMPUTER PROGRAM PRODUCT
    3.
    发明申请
    CONTROLLER, STORAGE APPARATUS, AND COMPUTER PROGRAM PRODUCT 有权
    控制器,存储设备和计算机程序产品

    公开(公告)号:US20120072811A1

    公开(公告)日:2012-03-22

    申请号:US13035194

    申请日:2011-02-25

    IPC分类号: H03M13/09 G06F11/10

    摘要: According to one embodiment, a controller controls writing into and reading from a storage apparatus that includes a first data-storage unit and a second data-storage unit. The second data-storage unit stores user data and parity data of the user data. The first data-storage unit stores the parity data. The controller includes a parity updating unit and a parity writing unit. When parity data is updated, the parity updating unit writes the updated parity data into the first data-storage unit. When a certain requirement is satisfied, the parity writing unit reads the parity data written in the first data-storage unit, and writes the parity data thus read into the second data-storage unit.

    摘要翻译: 根据一个实施例,控制器控制对包括第一数据存储单元和第二数据存储单元的存储装置的写入和读取。 第二数据存储单元存储用户数据和用户数据的奇偶校验数据。 第一数据存储单元存储奇偶校验数据。 控制器包括奇偶校验更新单元和奇偶校验写入单元。 当更新奇偶校验数据时,奇偶校验更新单元将更新的奇偶校验数据写入第一数据存储单元。 当满足特定要求时,奇偶写入单元读取写入第一数据存储单元中的奇偶校验数据,并将读出的奇偶校验数据写入第二数据存储单元。

    Memory system
    4.
    发明授权
    Memory system 有权
    内存系统

    公开(公告)号:US08583856B2

    公开(公告)日:2013-11-12

    申请号:US12882703

    申请日:2010-09-15

    申请人: Hiroshi Yao

    发明人: Hiroshi Yao

    IPC分类号: G06F12/00

    CPC分类号: G06F12/0246 G06F2212/7208

    摘要: According to one embodiment, a memory system includes a nonvolatile memory, a managing unit, an order rule holding unit, a position information storing unit, a list selecting unit, a block selecting unit, a writing unit, and an updating unit. The managing unit holds for each of storage areas of the nonvolatile memory a free block list indicating free blocks. The order rule holding unit holds an order rule used to determine an order of the free block lists. The position information storing unit stores position information indicating the position of the free block list in the order rule. The list selecting unit selects the free block list corresponding to the position indicated by the position information and the block selecting unit selects the free block therefrom. The updating unit updates after the list selection the position information in the position information storing unit with position information indicating the position of the subsequently selected free block list.

    摘要翻译: 根据一个实施例,存储系统包括非易失性存储器,管理单元,订单规则保持单元,位置信息存储单元,列表选择单元,块选择单元,写入单元和更新单元。 管理单元为非易失性存储器的每个存储区域保持指示空闲块的空闲块列表。 订单规则保持单元保存用于确定空闲块列表的顺序的订单规则。 位置信息存储单元存储指示订单规则中的空闲块列表的位置的位置信息。 列表选择单元选择与由位置信息指示的位置对应的空闲块列表,并且块选择单元从其中选择空闲块。 更新单元在列表选择位置信息之后更新具有指示随后选择的空闲块列表的位置的位置信息。

    MEMORY SYSTEM
    5.
    发明申请
    MEMORY SYSTEM 有权
    记忆系统

    公开(公告)号:US20110231610A1

    公开(公告)日:2011-09-22

    申请号:US12884844

    申请日:2010-09-17

    IPC分类号: G06F12/00 G06F12/08

    摘要: According to one embodiment, a free blocks included in a nonvolatile semiconductor memory are classified into a plurality of free block management lists. When a free block is acquired at normal priority, the free block is acquired from the free block management list in which a number of free blocks is larger than a first threshold. When a free block is acquired at high priority, the free block is acquired from the free block management list irrespective of the first threshold.

    摘要翻译: 根据一个实施例,包括在非易失性半导体存储器中的自由块被分类为多个空闲块管理列表。 当以正常优先级获取空闲块时,从多个空闲块大于第一阈值的空闲块管理列表中获取空闲块。 当以高优先级获取空闲块时,从空闲块管理列表获取空闲块,而与第一阈值无关。

    SEMICONDUCTOR STORAGE DEVICE
    8.
    发明申请
    SEMICONDUCTOR STORAGE DEVICE 审中-公开
    半导体存储设备

    公开(公告)号:US20130275650A1

    公开(公告)日:2013-10-17

    申请号:US13824792

    申请日:2011-12-14

    IPC分类号: G06F12/02

    摘要: According to the embodiments, a first management table, which is included in a nonvolatile second semiconductor memory and manages data included in a second storage area by a first management unit, is stored in the second semiconductor memory and a second management table for managing data in the second storage area by a second management unit larger than the first management unit is stored in a first semiconductor memory capable of random access.

    摘要翻译: 根据实施例,包括在非易失性第二半导体存储器中并且由第一管理单元管理包括在第二存储区域中的数据的第一管理表存储在第二半导体存储器中,以及用于管理数据的第二管理表 由比第一管理单元大的第二管理单元的第二存储区域被存储在能够随机存取的第一半导体存储器中。

    Information processing apparatus and data recovering method
    9.
    发明授权
    Information processing apparatus and data recovering method 有权
    信息处理装置和数据恢复方法

    公开(公告)号:US08219767B2

    公开(公告)日:2012-07-10

    申请号:US12199111

    申请日:2008-08-27

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

    CPC分类号: G06F11/1441 G06F1/30

    摘要: A information processing apparatus includes, upon instructing for writing back stored contents of a main memory unit to the stored contents of the main memory unit at the time of previous modification in a sequence number that is used for identifying whether write back to the main memory unit is needed, from a backup data stored in a backup memory unit, the sequence number stored in a sequence number memory unit. The information processing apparatus selects the backup data including an integrity verification data indicating that writing is carried out completely. The information processing apparatus extracts an original data and a write destination address included in the selected backup data and writes the original data, for each original data and the write address extracted from the backup data, to a storage area, of the main memory unit, indicated by the write destination address.

    摘要翻译: 信息处理装置包括:在上一次修改时,指示将存储的主存储单元的存储内容写入主存储单元的存储内容中的顺序号,用于识别是否回写到主存储器单元 从存储在备用存储器单元中的备份数据需要存储在序列号存储单元中的序列号。 信息处理装置选择包括表示完全进行写入的完整性验证数据的备份数据。 信息处理装置提取所选择的备份数据中包含的原始数据和写入目的地地址,并将原始数据和从备份数据提取的写入地址的原始数据写入主存储器单元的存储区域, 由写入目标地址指示。