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公开(公告)号:US20110258380A1
公开(公告)日:2011-10-20
申请号:US12763003
申请日:2010-04-19
IPC分类号: G06F12/16
CPC分类号: G06F11/108
摘要: A data storage apparatus and associated method involving a memory with a plurality of storage elements defining an associated set of stored data, and memory control logic that, responsive to a request to store first data in a first storage element of the plurality of storage elements, computes without storing to any of the plurality of storage elements first redundancy data for the associated set of stored data inclusive of the first data.
摘要翻译: 一种数据存储装置和相关联的方法,涉及具有定义相关联的存储数据集合的多个存储元件的存储器以及响应于将第一数据存储在多个存储元件的第一存储元件中的请求的存储器控制逻辑, 计算不存储到多个存储元件中的任何一个的用于包括第一数据的相关联的存储数据集合的第一冗余数据。
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公开(公告)号:US20110231596A1
公开(公告)日:2011-09-22
申请号:US12726486
申请日:2010-03-18
CPC分类号: G06F12/0246 , G06F12/0866 , G06F2212/7207
摘要: Method and apparatus for managing metadata associated with a data storage array. In accordance with various embodiments, a group of user data blocks are stored to memory cells at a selected physical address of the array. A multi-tiered metadata scheme is used to generate metadata which describes the selected physical address of the user data blocks. The multi-tiered metadata scheme provides an upper tier metadata format adapted for groups of N user data blocks, and a lower tier metadata format adapted for groups of M user data blocks where M is less than N. The generated metadata is formatted in accordance with a selected one of the upper or lower tier metadata formats in relation to a total number of the user data blocks in the group.
摘要翻译: 用于管理与数据存储阵列相关联的元数据的方法和装置。 根据各种实施例,一组用户数据块被存储到阵列的所选物理地址处的存储器单元。 使用多层元数据方案来生成描述用户数据块的选定物理地址的元数据。 多层元数据方案提供适用于N个用户数据块组的上层元数据格式,以及适用于M小于N的M个用户数据块组的较低层元数据格式。所生成的元数据根据 相对于组中的用户数据块的总数,选择的上层或下层元数据格式之一。
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23.
公开(公告)号:US20100118426A1
公开(公告)日:2010-05-13
申请号:US12267168
申请日:2008-11-07
CPC分类号: G11B5/59616 , B82Y10/00 , G11B5/09 , G11B5/743
摘要: A write clock control system comprises a clock controller that determines a phase offset based on a phase difference between a write clock signal and a media pattern corresponding to a given timing synchronization field being read, and a phase interpolator that produces an updated write clock signal by updating the phase of the write clock signal in accordance with control signals that are based on the phase offset signal.
摘要翻译: 写时钟控制系统包括时钟控制器,时钟控制器基于写时钟信号和对应于正在读取的给定定时同步字段的媒体模式之间的相位差来确定相位偏移;以及相位插值器,其通过以下步骤产生更新的写时钟信号: 根据基于相位偏移信号的控制信号更新写时钟信号的相位。
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