Apparatus, system, and method for bad block remapping
    3.
    发明授权
    Apparatus, system, and method for bad block remapping 有权
    坏块重映射的装置,系统和方法

    公开(公告)号:US08484522B2

    公开(公告)日:2013-07-09

    申请号:US13565190

    申请日:2012-08-02

    IPC分类号: G11C29/00

    摘要: An apparatus, system, and method are disclosed for bad block remapping. A bad block identifier module identifies one or more data blocks on a solid-state storage element as bad blocks. A log update module writes at least a location of each bad block identified by the bad block identifier module into each of two or more redundant bad block logs. A bad block mapping module accesses at least one bad block log during a start-up operation to create in memory a bad block map. The bad block map includes a mapping between the bad block locations in the bad block log and a corresponding location of a replacement block for each bad block location. Data is stored in each replacement block instead of the corresponding bad block. The bad block mapping module creates the bad block map using one of a replacement block location and a bad block mapping algorithm.

    摘要翻译: 公开了用于坏块重映射的装置,系统和方法。 坏块标识符模块将固态存储元件上的一个或多个数据块识别为坏块。 日志更新模块至少将由坏块标识符模块标识的每个坏块的位置写入两个或更多个冗余坏块日志中的每一个。 坏块映射模块在启动操作期间访问至少一个坏块日志,以在存储器中创建坏块映射。 坏块映射包括坏块日志中的坏块位置与每个坏块位置的替换块的对应位置之间的映射。 数据存储在每个替换块而不是相应的坏块中。 坏块映射模块使用替换块位置和坏块映射算法之一来创建坏块映射。

    Apparatus, system, and method for using multi-level cell solid-state storage as single level cell solid-state storage
    4.
    发明授权
    Apparatus, system, and method for using multi-level cell solid-state storage as single level cell solid-state storage 有权
    使用多级单元固态存储作为单级单元固态存储的装置,系统和方法

    公开(公告)号:US08443259B2

    公开(公告)日:2013-05-14

    申请号:US13531240

    申请日:2012-06-22

    IPC分类号: G11C29/00

    摘要: An apparatus, system, and method are disclosed for storing information in a storage device that includes multi-level memory cells. The method involves storing data that is written to the storage device in the LSBs of the multi-level memory cells, and storing audit data in the MSBs of the multi-level memory cells. The audit data can be read separately from the data and used to determine whether or not there has been any unintended drift between states in the multi-level cells. The audit data may be used to correct data when the errors in the data are too numerous to be corrected using error correction code (ECC). The audit data may also be used to monitor the general health of the storage device. The monitoring process may run as a background process on the storage device. The storage device may transition the multi-level memory cells to operate as single-level memory cells.

    摘要翻译: 公开了用于将信息存储在包括多级存储器单元的存储设备中的装置,系统和方法。 该方法包括存储在多级存储器单元的LSB中写入存储装置的数据,并将审计数据存储在多级存储单元的MSB中。 审计数据可以与数据分开读取,用于确定多级单元中状态之间是否有任何意外的漂移。 当数据中的错误太多而不能使用纠错码(ECC)校正时,审计数据可用于校正数据。 审计数据也可以用于监视存储设备的总体健康状况。 监视过程可以作为存储设备上的后台进程运行。 存储设备可以转换多级存储器单元以作为单级存储器单元操作。

    Apparatus, system, and method for ensuring data validity in a data storage process
    7.
    发明授权
    Apparatus, system, and method for ensuring data validity in a data storage process 有权
    用于确保数据存储过程中的数据有效性的装置,系统和方法

    公开(公告)号:US08316277B2

    公开(公告)日:2012-11-20

    申请号:US12098427

    申请日:2008-04-05

    IPC分类号: G06F11/00

    摘要: An apparatus, system, and method are disclosed for ensuring data validity in a data storage process. A data receiver module receives a storage block and existing parity information. An ECC generation module generates error correcting code (“ECC”) check bits for the data of the storage block in response to receiving the storage block and the existing parity information. The ECC check bits for the storage block are generated using a block code, a convolutional code, etc. A pre-storage consistency module uses the data of the storage block, the existing parity information, and the ECC check bits to determine if the data of the storage block, the existing parity information, and the ECC check bits are consistent. A data storage module stores the data of the storage block and the ECC check bits the data storage device without storing the existing parity information.

    摘要翻译: 公开了一种用于确保数据存储过程中的数据有效性的装置,系统和方法。 数据接收器模块接收存储块和现有奇偶校验信息。 响应于接收到存储块和现有奇偶校验信息,ECC生成模块针对存储块的数据生成纠错码(ECC)校验位。 使用块码,卷积码等生成用于存储块的ECC校验位。预存储一致性模块使用存储块的数据,现有奇偶校验信息和ECC校验位来确定数据 的存储块,现有的奇偶校验信息和ECC校验位是一致的。 数据存储模块将存储块的数据和ECC校验位存储在数据存储装置中,而不存储现有的奇偶校验信息。

    APPARATUS, SYSTEM, AND METHOD FOR DETECTING AND REPLACING FAILED DATA STORAGE
    10.
    发明申请
    APPARATUS, SYSTEM, AND METHOD FOR DETECTING AND REPLACING FAILED DATA STORAGE 失效
    用于检测和更换故障数据存储的装置,系统和方法

    公开(公告)号:US20120221924A1

    公开(公告)日:2012-08-30

    申请号:US13466845

    申请日:2012-05-08

    IPC分类号: H03M13/05 G06F11/10

    摘要: An apparatus, system, and method are disclosed for detecting and replacing failed data storage. A read module reads data from an array of memory devices. The array includes two or more memory devices and one or more extra memory devices storing parity information from the memory devices. An ECC module determines, using an error correcting code (“ECC”), if one or more errors exist in tested data and if the errors are correctable using the ECC. The tested data includes data read by the read module. An isolation module selects a memory device in response to the ECC module determining that errors exists in the data read by the read module and that the errors are uncorrectable using the ECC. The isolation module also replaces data read from the selected memory device with replacement data and available data wherein the tested data includes the available data combined with the replacement data.

    摘要翻译: 公开了用于检测和替换故障数据存储的装置,系统和方法。 读取模块从存储器件阵列中读取数据。 阵列包括两个或多个存储器设备和一个或多个额外的存储器件,其存储来自存储器件的奇偶校验信息。 ECC模块使用纠错码(“ECC”)确定测试数据中是否存在一个或多个错误,并且使用ECC可以校正错误。 测试数据包括读取模块读取的数据。 隔离模块响应于ECC模块选择存储器件,该ECC模块确定读取模块读取的数据中存在错误,并且使用ECC可以校正错误。 隔离模块还用替换数据和可用数据替换从所选存储器件读取的数据,其中测试数据包括与替换数据组合的可用数据。