Disk drive with identical three-element, side-by-side heads on opposite
disk surfaces
    1.
    发明授权
    Disk drive with identical three-element, side-by-side heads on opposite disk surfaces 失效
    磁盘驱动器,在相对的磁盘表面上具有相同的三元件并排磁头

    公开(公告)号:US5798890A

    公开(公告)日:1998-08-25

    申请号:US811490

    申请日:1997-03-05

    摘要: A magnetic recording disk drive uses side-by-side read/write heads formed on head carriers that are substantially identical for both top and bottom disk surfaces. Thus, a common head carrier functions as a single manufacturable part usable for both top and bottom disk surfaces. The common head carrier has a trailing end with a pattern of components formed on it that includes three side-by-side transducers and sets of terminal pads. In the read/write/read side-by-side head arrangement, the first element is a center write element, such as an inductive coil, and the second and third elements are read elements, such as magnetoresistive read elements, that are generally equally spaced from the center write element. In common carriers to be used for the top disk surfaces, one of the read elements is electrically connected to the read/write channel of the disk drive, and in common carriers to be used for the bottom disk surfaces, the other read element on the common carrier is electrically connected to the read/write channel. The disk drive thus operates in cylinder mode with side-by-side heads using a common carrier for both top and bottom disk surfaces.

    摘要翻译: 磁记录盘驱动器使用形成在头托架上的并排读/写头,其对于顶盘和底盘表面基本相同。 因此,公共的头托架用作可用于顶部和底部盘表面的单个可制造部件。 公共头托架具有后端,其上形成有包括三个并排换能器和端子排组的部件图案。 在读/写/读并排磁头布置中,第一元件是诸如感应线圈的中心写元件,并且第二和第三元件是读取元件,例如磁阻读取元件,其大致相等 与中心写入元件间隔开。 在用于顶部磁盘表面的公共载体中,读取元件中的一个电连接到磁盘驱动器的读取/写入通道,并且在用于底部磁盘表面的公共载体中,另一个读取元件 公共载体电连接到读/写通道。 因此,磁盘驱动器以圆柱模式并行地使用顶部和底部磁盘表面的公共载体。

    Disk drive with identical top and bottom heads having three side-by-side
elements and a common terminal pad
    2.
    发明授权
    Disk drive with identical top and bottom heads having three side-by-side elements and a common terminal pad 失效
    具有相同顶部和底部头部的盘驱动器具有三个并排元件和公共端子垫

    公开(公告)号:US5896249A

    公开(公告)日:1999-04-20

    申请号:US138836

    申请日:1998-08-24

    摘要: A magnetic recording disk drive uses side-by-side read/write heads formed on head carriers that are identical for both top and bottom disk surfaces. Thus, a common head carrier functions as a single manufacturable part usable for both top and bottom disk surfaces. The common head carrier has a trailing end with a pattern of components formed on it that includes three side-by-side transducers (two read elements equally spaced about a center write element) and five terminal pads, one of which is a common pad, and all of the electrical connectors interconnecting the five terminal pads with the three transducers. There are only three terminal pads for the two read elements, with one of the read terminal pads being a common terminal pad that is electrically connected to both read elements. During assembly of the disk drive, the common carrier, when used as the top carrier, has a first read terminal pad and the common terminal pad connected to the leads on the suspension. When used as the bottom carrier, the second read terminal pad and the common terminal pad are connected to the leads on the suspension. Thus, only one carrier common to both top and bottom sides of the disk needs to be manufactured. The uniqueness of the top and bottom carriers is obtained by the wiring connection of the read terminal pads to the leads on the suspensions.

    摘要翻译: 磁记录盘驱动器使用形成在头托架上的并排读/写头,其对于顶盘和底盘表面是相同的。 因此,公共的头托架用作可用于顶部和底部盘表面的单个可制造部件。 公共头托架具有后端,其上形成有包括三个并排换能器(两个读取元件,围绕中心写入元件等间隔开)的部件图案,以及五个端子焊盘,其中一个是公共焊盘, 并且所有电连接器将五个端子焊盘与三个换能器互连。 两个读取元件只有三个端子焊盘,其中一个读取端子焊盘是与两个读取元件电连接的公共端子焊盘。 在盘驱动器的组装期间,公共载体当用作顶部载体时,具有第一读取端子焊盘,并且公共端子焊盘连接到悬架上的引线。 当用作底部载体时,第二读取端子焊盘和公共端子焊盘连接到悬架上的引线。 因此,只需要制造一个与磁盘的顶面和底面共同的载体。 顶部和底部载体的唯一性是通过将读取的端子焊盘连接到悬架上的引线而获得的。

    Anamorphic codes
    3.
    发明授权
    Anamorphic codes 失效
    变形码

    公开(公告)号:US08386891B2

    公开(公告)日:2013-02-26

    申请号:US12358593

    申请日:2009-01-23

    IPC分类号: H03M13/00

    摘要: The error tolerance of an array of m storage units is increased by using a technique referred to as “dodging.” A plurality of k stripes are stored across the array of storage units in which each stripe has n+r elements that correspond to a symmetric code having a minimum Hamming distance d=r+1. Each respective element of a stripe is stored on a different storage unit. An element is selected when a difference between a minimum distance of the donor stripe and a minimum distance of a recipient stripe is greater or equal to 2. The selected element is also stored on a storage unit having no elements of the recipient stripe. A lost element of the recipient stripe is then rebuilt on the selected element.

    摘要翻译: 通过使用称为闪避的技术来增加m个存储单元阵列的误差容限。 多个k个条纹被存储在存储单元阵列中,其中每个条带具有对应于具有最小汉明距离d = r + 1的对称码的n + r个元素。 条带的每个相应元件被存储在不同的存储单元上。 当供体条纹的最小距离与接收者条纹的最小距离之间的差异大于或等于2时,选择元素。所选择的元素也存储在不具有接收者条带的元素的存储单元上。 然后在所选元素上重建接收者条带的丢失元素。

    WAIT-FREE STREAM ORIENTED MIGRATION BASED STORAGE
    4.
    发明申请
    WAIT-FREE STREAM ORIENTED MIGRATION BASED STORAGE 有权
    基于面向移动的等待流量存储

    公开(公告)号:US20120198027A1

    公开(公告)日:2012-08-02

    申请号:US13015015

    申请日:2011-01-27

    IPC分类号: G06F15/16

    摘要: Embodiments of the invention relate to systematic migration of data. Data is streamed to data storage and stored in a virtual storage device (VSD). Stored data is systematically migrated from the VSD to a higher density VSD, while streaming of data is also switched to the higher density VSD. Source and target data extents are maintained and merged upon completion of the data migration, together with linking the streamed data blocks with the migrated data blocks in the order presented in the input stream.

    摘要翻译: 本发明的实施例涉及数据的系统迁移。 将数据流传输到数据存储并存储在虚拟存储设备(VSD)中。 存储的数据系统地从VSD迁移到更高密度的VSD,而数据流也切换到更高密度的VSD。 源和目标数据扩展区在数据迁移完成后维护和合并,并将流式数据块与迁移后的数据块按照输入流中呈现的顺序进行链接。

    Anamorphic Codes
    6.
    发明申请
    Anamorphic Codes 失效
    变形码

    公开(公告)号:US20090132890A1

    公开(公告)日:2009-05-21

    申请号:US12358593

    申请日:2009-01-23

    IPC分类号: H03M13/05 G06F11/10

    摘要: The error tolerance of an array of m storage units is increased by using a technique referred to as “dodging.” A plurality of k stripes are stored across the array of storage units in which each stripe has n+r elements that correspond to a symmetric code having a minimum Hamming distance d=r+1. Each respective element of a stripe is stored on a different storage unit. An element is selected when a difference between a minimum distance of the donor stripe and a minimum distance of a recipient stripe is greater or equal to 2. The selected element is also stored on a storage unit having no elements of the recipient stripe. A lost element of the recipient stripe is then rebuilt on the selected element.

    摘要翻译: 通过使用称为“闪避”的技术来增加m个存储单元阵列的误差容限。 多个k个条纹被存储在存储单元阵列中,其中每个条带具有对应于具有最小汉明距离d = r + 1的对称码的n + r个元素。 条带的每个相应元件被存储在不同的存储单元上。 当供体条纹的最小距离与接收者条纹的最小距离之间的差异大于或等于2时,选择元素。所选择的元素也存储在不具有接收者条带的元素的存储单元上。 然后在所选元素上重建接收者条带的丢失元素。

    Zoned recording embedded servo disk drive having no data identification
fields and reduced rotational latency
    7.
    发明授权
    Zoned recording embedded servo disk drive having no data identification fields and reduced rotational latency 失效
    分区记录嵌入式伺服磁盘驱动器,没有数据识别字段和减小的旋转延迟

    公开(公告)号:US5768044A

    公开(公告)日:1998-06-16

    申请号:US655998

    申请日:1996-05-31

    摘要: A zoned recording, embedded servo disk drive includes a sector architecture in which the recording head locates and identifies data sectors without using data identification (ID) fields, but instead using information obtained from electronic storage and from servo sectors which need not be adjacent to the data sectors. Each data track contains servo information and data, but not data sector ID information, and is circumferentially divided into identical segments. Included in each track segment is a number of data regions separated from one another by servo sectors. The data regions in each track segment may contain partial data sectors and complete data sectors, and each data sector is identified by a number indicating its location relative to the beginning of the track segment. After movement of the head to another data zone and after power to the servo electronics is restored on recovery from a power saving mode, the correct data sector for reading or writing is located by use of the number of the data sector following the first servo sector read by the head. This avoids the latency penalty that would occur if the disk drive had to wait until the next beginning-of-track index mark.

    摘要翻译: 分区记录,嵌入式伺服盘驱动器包括扇区架构,其中记录头定位并识别数据扇区而不使用数据识别(ID)字段,而是使用从电子存储器获取的信息和从不需要与 数据部门。 每个数据轨道包含伺服信息和数据,而不包含数据扇区ID信息,并且周向地划分成相同的段。 包括在每个轨道段中的是通过伺服扇区彼此分离的多个数据区域。 每个轨道段中的数据区域可以包含部分数据扇区和完整的数据扇区,并且每个数据扇区由指示其相对于轨道段的开头的位置的数字来标识。 在从省电模式恢复时,头部移动到另一个数据区域并且对伺服电子设备的电源恢复后,通过使用第一伺服扇区之后的数据扇区的数量来定位用于读取或写入的正确的数据扇区 由头读。 这避免了如果磁盘驱动器必须等到下一个开始的索引标记才会发生的延迟损失。

    System, method, and computer program product for skewing expected wearout times of memory devices
    8.
    发明授权
    System, method, and computer program product for skewing expected wearout times of memory devices 有权
    系统,方法和计算机程序产品,用于扭曲存储设备的预期损耗时间

    公开(公告)号:US08661187B2

    公开(公告)日:2014-02-25

    申请号:US12420607

    申请日:2009-04-08

    IPC分类号: G06F12/00

    摘要: A method in one embodiment includes writing first data to a first memory device of a memory array at a first number of writes per unit time; writing second data to a second memory device of the memory array at a second number of writes per unit time; and skewing expected wearout times of the memory devices by making the second number of writes per unit time less than the first number of writes per unit time. A method in another embodiment includes writing first data to a first memory device of a memory array; writing second data to a second memory device of the memory array; and skewing expected wearout times of the memory devices by making a number of available storage units on the second memory device less than a number of available storage units on the first memory device.

    摘要翻译: 一个实施例中的方法包括以每单位时间的第一写入次数将第一数据写入存储器阵列的第一存储器件; 以每单位时间的第二写入次数将第二数据写入存储器阵列的第二存储器件; 并且通过使每单位时间的第二写入次数小于每单位时间的第一写入数量来扭曲存储器件的预期损耗时间。 另一实施例中的方法包括将第一数据写入存储器阵列的第一存储器件; 将第二数据写入存储器阵列的第二存储器件; 以及通过使所述第二存储器设备上的多个可用存储单元小于所述第一存储器设备上的多个可用存储单元来扭曲所述存储器设备的预期损耗时间。

    System, method, and computer program product for analyzing monitor data information from a plurality of memory devices having finite endurance and/or retention
    9.
    发明授权
    System, method, and computer program product for analyzing monitor data information from a plurality of memory devices having finite endurance and/or retention 有权
    用于从具有有限持久性和/或保留的多个存储器件分析监视数据信息的系统,方法和计算机程序产品

    公开(公告)号:US08554989B2

    公开(公告)日:2013-10-08

    申请号:US13617996

    申请日:2012-09-14

    IPC分类号: G06F12/00

    摘要: A method according to one embodiment includes gathering information about monitor data from a plurality of memory devices having finite endurance and/or retention, the monitor data being (i) data of known content stored in dedicated memory cells of known write cycle count, and (ii) write protected for preventing the monitor data from being overwritten with user data; analyzing the monitor data information; and taking an action relating to at least one of the devices based on the analyzing. Additional systems, methods, and computer program products are also disclosed.

    摘要翻译: 根据一个实施例的方法包括从具有有限持久性和/或保留的多个存储器件收集关于监视数据的信息,所述监视数据是(i)存储在已知写周期计数的专用存储器单元中的已知内容的数据,和 ii)写入保护,防止监视数据被用户数据覆盖; 分析监控数据信息; 并且基于分析采取与至少一个设备有关的动作。 还公开了附加的系统,方法和计算机程序产品。