TAPE LAYOUT DESIGN FOR RELIABLE ECC DECODING
    1.
    发明申请
    TAPE LAYOUT DESIGN FOR RELIABLE ECC DECODING 有权
    用于可靠的ECC解码的卷带布局设计

    公开(公告)号:US20120033321A1

    公开(公告)日:2012-02-09

    申请号:US12849720

    申请日:2010-08-03

    IPC分类号: G11B5/09 H03M13/00

    摘要: A method for physically laying out data on tape is disclosed herein. In one embodiment, such a method includes receiving a data set, wherein the data set includes S sub data sets (SDSs) of fixed size and each SDS includes N codeword interleaves (CWIs). The method further distributes the CWIs for the S SDSs across T tracks on a physical tape medium such that the distances between CWIs of the same SDS are substantially maximized on the physical tape medium. To maximize the distances, the method periodically rotates the tracks within the data set by a track rotation value R, wherein the number of tracks T is equal to 2k, and the track rotation value R is equal to 2k−1−1. A corresponding apparatus is also disclosed herein.

    摘要翻译: 本文公开了一种在带上物理布置数据的方法。 在一个实施例中,这种方法包括接收数据集,其中数据集包括固定大小的S个子数据集(SDS),并且每个SDS包括N个码字交织(CWI)。 该方法进一步在物理磁带介质上跨T磁道分配用于S SDS的CWI,使得相同SDS上的CWI之间的距离在物理磁带介质上基本上最大化。 为了最大化距离,该方法通过轨道旋转值R周期性地旋转数据集内的轨道,其中轨道数量T等于2k,轨道旋转值R等于2k-1-1。 本文还公开了相应的装置。

    DECODING ENCODED DATA CONTAINING INTEGRATED DATA AND HEADER PROTECTION
    3.
    发明申请
    DECODING ENCODED DATA CONTAINING INTEGRATED DATA AND HEADER PROTECTION 失效
    解码包含一体化数据和编码保护的编码数据

    公开(公告)号:US20120144271A1

    公开(公告)日:2012-06-07

    申请号:US12957651

    申请日:2010-12-01

    IPC分类号: G11C29/00

    摘要: A method for decoding encoded data comprising integrated data and header protection is disclosed herein. In one embodiment, such a method includes receiving an extended data array. The extended data array includes a data array organized into rows and columns, headers appended to the rows of the data array, column ECC parity protecting the columns of the data array, and row ECC parity protecting the rows and headers combined. The method then decodes the extended data array. Among other operations, this decoding step includes checking the header associated with each row to determine whether the header is legal. If the header is legal, the method determines the contribution of the header to the corresponding row ECC parity. The method then reverses the contribution of the header to the corresponding row ECC parity. A corresponding apparatus (i.e., a tape drive configured to implement the above-described method) is also disclosed herein.

    摘要翻译: 本文公开了一种用于对包括集成数据和报头保护的编码数据进行解码的方法。 在一个实施例中,这种方法包括接收扩展数据阵列。 扩展数据阵列包括组织成行和列的数据阵列,附加到数据阵列行的标题,保护数据阵列列的ECC ECC奇偶校验和保护行和头组合的行ECC奇偶校验。 该方法然后解码扩展数据数组。 在其他操作中,该解码步骤包括检查与每行关联的标题以确定标题是否合法。 如果标题是合法的,则该方法确定标题对相应行ECC奇偶校验的贡献。 该方法然后将标题的贡献反转到对应的行ECC奇偶校验。 本文还公开了相应的装置(即,被配置为实现上述方法的磁带驱动器)。

    EFFICIENT REWRITE TECHNIQUE FOR TAPE DRIVES
    4.
    发明申请
    EFFICIENT REWRITE TECHNIQUE FOR TAPE DRIVES 有权
    有效的REWRITE技术用于磁带驱动

    公开(公告)号:US20120036318A1

    公开(公告)日:2012-02-09

    申请号:US12849743

    申请日:2010-08-03

    IPC分类号: G06F12/00

    摘要: A method for efficiently rewriting data to tape is disclosed herein. In one embodiment, such a method includes writing a data set to tape, the data set comprising S sub data sets of fixed size, each sub data set comprising N code word interleaves (CWIs). The method further includes reading the data set while writing it to the tape to identify faulty CWIs. While reading the data set, the method buffers the faulty CWIs (such as by storing, identifying, and/or marking the faulty CWIs) for later retrieval. When the end of the data set is reached, the method writes corrected versions of the faulty CWIs to the end of the data set. A corresponding apparatus is also disclosed and claimed herein.

    摘要翻译: 本文公开了一种有效地将数据重写到磁带的方法。 在一个实施例中,这种方法包括将数据集写入磁带,数据组包括固定大小的S个子数据集,每个子​​数据集包括N个码字交织(CWI)。 该方法还包括在将数据集写入磁带时识别数据集以识别故障CWI。 在读取数据集时,该方法缓冲有缺陷的CWI(例如通过存储,识别和/或标记故障的CWI)来稍后检索。 当达到数据集的结尾时,该方法会将故障CWI的修正版本写入数据集的末尾。 本文还公开并要求对应的装置。

    Tape layout design for reliable ECC decoding
    6.
    发明授权
    Tape layout design for reliable ECC decoding 有权
    磁带布局设计可靠的ECC解码

    公开(公告)号:US08139304B2

    公开(公告)日:2012-03-20

    申请号:US12849720

    申请日:2010-08-03

    IPC分类号: G11B5/09

    摘要: A method for physically laying out data on tape is disclosed herein. In one embodiment, such a method includes receiving a data set, wherein the data set includes S sub data sets (SDSs) of fixed size and each SDS includes N codeword interleaves (CWIs). The method further distributes the CWIs for the S SDSs across T tracks on a physical tape medium such that the distances between CWIs of the same SDS are substantially maximized on the physical tape medium. To maximize the distances, the method periodically rotates the tracks within the data set by a track rotation value R, wherein the number of tracks T is equal to 2k, and the track rotation value R is equal to 2k−1−1. A corresponding apparatus is also disclosed herein.

    摘要翻译: 本文公开了一种在带上物理布置数据的方法。 在一个实施例中,这种方法包括接收数据集,其中数据集包括固定大小的S个子数据集(SDS),并且每个SDS包括N个码字交织(CWI)。 该方法进一步在物理磁带介质上跨T磁道分配用于S SDS的CWI,使得相同SDS上的CWI之间的距离在物理磁带介质上基本上最大化。 为了最大化距离,该方法通过轨道旋转值R周期性地旋转数据集内的轨道,其中轨道数量T等于2k,轨道旋转值R等于2k-1-1。 本文还公开了相应的装置。

    Efficient rewrite technique for tape drives
    8.
    发明授权
    Efficient rewrite technique for tape drives 有权
    磁带驱动器的高效重写技术

    公开(公告)号:US08495470B2

    公开(公告)日:2013-07-23

    申请号:US12849743

    申请日:2010-08-03

    IPC分类号: G11C29/00

    摘要: A method for efficiently rewriting data to tape is disclosed herein. In one embodiment, such a method includes writing a data set to tape, the data set comprising S sub data sets of fixed size, each sub data set comprising N code word interleaves (CWIs). The method further includes reading the data set while writing it to the tape to identify faulty CWIs. While reading the data set, the method buffers the faulty CWIs (such as by storing, identifying, and/or marking the faulty CWIs) for later retrieval. When the end of the data set is reached, the method writes corrected versions of the faulty CWIs to the end of the data set. A corresponding apparatus is also disclosed and claimed herein.

    摘要翻译: 本文公开了一种有效地将数据重写到磁带的方法。 在一个实施例中,这种方法包括将数据集写入磁带,数据组包括固定大小的S个子数据集,每个子​​数据集包括N个码字交织(CWI)。 该方法还包括在将数据集写入磁带时识别数据集以识别故障CWI。 在读取数据集时,该方法缓冲有缺陷的CWI(例如通过存储,识别和/或标记故障的CWI)来稍后检索。 当达到数据集的结尾时,该方法会将故障CWI的修正版本写入数据集的末尾。 本文还公开并要求对应的装置。

    Decoding encoded data containing integrated data and header protection
    9.
    发明授权
    Decoding encoded data containing integrated data and header protection 失效
    对包含集成数据和头部保护的编码数据进行解码

    公开(公告)号:US08762805B2

    公开(公告)日:2014-06-24

    申请号:US12957651

    申请日:2010-12-01

    IPC分类号: G06F11/00

    摘要: A method for decoding encoded data comprising integrated data and header protection is disclosed herein. In one embodiment, such a method includes receiving an extended data array. The extended data array includes a data array organized into rows and columns, headers appended to the rows of the data array, column ECC parity protecting the columns of the data array, and row ECC parity protecting the rows and headers combined. The method then decodes the extended data array. Among other operations, this decoding step includes checking the header associated with each row to determine whether the header is legal. If the header is legal, the method determines the contribution of the header to the corresponding row ECC parity. The method then reverses the contribution of the header to the corresponding row ECC parity. A corresponding apparatus (i.e., a tape drive configured to implement the above-described method) is also disclosed herein.

    摘要翻译: 本文公开了一种用于对包括集成数据和报头保护的编码数据进行解码的方法。 在一个实施例中,这种方法包括接收扩展数据阵列。 扩展数据阵列包括组织成行和列的数据阵列,附加到数据阵列行的标题,保护数据阵列列的ECC ECC奇偶校验和保护行和头组合的行ECC奇偶校验。 该方法然后解码扩展数据数组。 在其他操作中,该解码步骤包括检查与每行关联的标题以确定标题是否合法。 如果标题是合法的,则该方法确定标题对相应行ECC奇偶校验的贡献。 该方法然后将标题的贡献反转到对应的行ECC奇偶校验。 本文还公开了相应的装置(即,被配置为实现上述方法的磁带驱动器)。