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    • 5. 发明授权
    • Fixed content distributed data storage using permutation ring encoding
    • 使用排列环编码固定内容分布式数据存储
    • US07240236B2
    • 2007-07-03
    • US10806488
    • 2004-03-23
    • Shaun CuttsAndres Rodriguez
    • Shaun CuttsAndres Rodriguez
    • G06F11/08H03M13/13G06F11/10
    • G06F11/1076G06F2211/1028H03M13/1191H03M13/151
    • A file protection scheme for fixed content in a distributed data archive uses computations that leverage permutation operators of a cyclic code. In an illustrative embodiment, an N+K coding technique is described for use to protect data that is being distributed in a redundant array of independent nodes (RAIN). The data itself may be of any type, and it may also include system metadata. According to the invention, the data to be distributed is encoded by a dispersal operation that uses a group of permutation ring operators. In a preferred embodiment, the dispersal operation is carried out using a matrix of the form [IN—C] where IN is an n×n identity sub-matrix and C is a k×n sub-matrix of code blocks. The identity sub-matrix is used to preserve the data blocks intact. The sub-matrix C preferably comprises a set of permutation ring operators that are used to generate the code blocks. The operators are preferably superpositions that are selected from a group ring of a permutation group with base ring Z2.
    • 分布式数据归档中固定内容的文件保护方案使用利用循环码的置换运算符的计算。 在说明性实施例中,描述了用于保护分布在独立节点(RAIN)的冗余阵列中的数据的N + K编码技术。 数据本身可以是任何类型的,并且它也可以包括系统元数据。 根据本发明,要分配的数据通过使用一组置换环操作符的分散操作进行编码。 在一个优选实施例中,使用以下形式的矩阵来执行分散操作:其中I N为N [N 2 是n×n个身份子矩阵,C是代码块的k×n子矩阵。 身份子矩阵用于完整保存数据块。 子矩阵C优选地包括用于生成代码块的一组置换环操作符。 操作者优选地是从具有基环Z 2的置换组的组环中选择的叠加。
    • 6. 发明申请
    • Fixed content distributed data storage using permutation ring encoding
    • 使用排列环编码固定内容分布式数据存储
    • US20050216813A1
    • 2005-09-29
    • US10806488
    • 2004-03-23
    • Shaun CuttsAndres Rodriguez
    • Shaun CuttsAndres Rodriguez
    • G06F11/10H03M13/00H03M13/11H03M13/15
    • G06F11/1076G06F2211/1028H03M13/1191H03M13/151
    • A file protection scheme for fixed content in a distributed data archive uses computations that leverage permutation operators of a cyclic code. In an illustrative embodiment, an N+K coding technique is described for use to protect data that is being distributed in a redundant array of independent nodes (RAIN). The data itself may be of any type, and it may also include system metadata. According to the invention, the data to be distributed is encoded by a dispersal operation that uses a group of permutation ring operators. In a preferred embodiment, the dispersal operation is carried out using a matrix of the form [IN—C] where IN is an n×n identity sub-matrix and C is a k×n sub-matrix of code blocks. The identity sub-matrix is used to preserve the data blocks intact. The sub-matrix C preferably comprises a set of permutation ring operators that are used to generate the code blocks. The operators are preferably superpositions that are selected from a group ring of a permutation group with base ring Z2.
    • 分布式数据归档中固定内容的文件保护方案使用利用循环码的置换运算符的计算。 在说明性实施例中,描述了用于保护分布在独立节点(RAIN)的冗余阵列中的数据的N + K编码技术。 数据本身可以是任何类型的,并且它也可以包括系统元数据。 根据本发明,要分配的数据通过使用一组置换环操作符的分散操作进行编码。 在一个优选实施例中,使用以下形式的矩阵来执行分散操作:其中I N为N [N 2 是n×n个身份子矩阵,C是代码块的k×n子矩阵。 身份子矩阵用于完整保存数据块。 子矩阵C优选地包括用于生成代码块的一组置换环操作符。 操作者优选地是从具有基环Z 2的置换组的组环中选择的叠加。