Disk drive write verifying unformatted data sectors
    1.
    发明授权
    Disk drive write verifying unformatted data sectors 有权
    磁盘驱动器写入验证未格式化的数据扇区

    公开(公告)号:US08004785B1

    公开(公告)日:2011-08-23

    申请号:US12118365

    申请日:2008-05-09

    IPC分类号: G11B5/09

    摘要: A disk drive is disclosed comprising a disk having a plurality of data sectors, wherein a physical block address (PBA) is associated with each data sector. When a write command is received from a host to write user data to the disk, and the write command comprises an unformatted logical block address (LBA), the user data is written to a first data sector, and the first data sector is write verified. A second data sector is defect scanned, and after the second data sector passes the defect scan, the user data is migrated from the first data sector to the second data sector and the LBA is formatted to the second data sector.

    摘要翻译: 公开了一种磁盘驱动器,其包括具有多个数据扇区的盘,其中物理块地址(PBA)与每个数据扇区相关联。 当从主机接收到写入命令以将用户数据写入盘时,并且写命令包括未格式化的逻辑块地址(LBA)时,将用户数据写入第一数据扇区,并且第一数据扇区被写入验证 。 第二数据扇区被缺陷扫描,并且在第二数据扇区通过缺陷扫描之后,用户数据从第一数据扇区迁移到第二数据扇区,并且将LBA格式化为第二数据扇区。

    Disk drive storing parameters of a write operation in a plurality of data sectors
    2.
    发明授权
    Disk drive storing parameters of a write operation in a plurality of data sectors 有权
    磁盘驱动器存储多个数据扇区中的写入操作的参数

    公开(公告)号:US07933087B1

    公开(公告)日:2011-04-26

    申请号:US12141693

    申请日:2008-06-18

    IPC分类号: G11B5/09

    摘要: A disk drive is disclosed comprising a disk having a plurality of data sectors, and a head actuated over the disk. The disk drive further comprises control circuitry operable to execute a write operation for writing data to the disk. A first part of the data is written to a first data sector together with a first sector signature data (SSD) record comprising a first parameter of the write operation and a first id that identifies the first parameter. A second part of the data is written to a second data sector together with a second SSD record comprising a second parameter of the write operation and a second id that identifies the second parameter.

    摘要翻译: 公开了一种磁盘驱动器,其包括具有多个数据扇区的盘,以及在盘上启动的磁头。 磁盘驱动器还包括控制电路,可操作以执行用于将数据写入磁盘的写入操作。 将数据的第一部分与包括写入操作的第一参数的第一扇区签名数据(SSD)记录以及标识第一参数的第一id一起写入第一数据扇区。 数据的第二部分与包括写操作的第二参数的第二SSD记录一起写入第二数据扇区,以及识别第二参数的第二ID。

    Disk drive employing different servo TPI to data TPI ratios across the disk surface
    3.
    发明授权
    Disk drive employing different servo TPI to data TPI ratios across the disk surface 有权
    磁盘驱动器采用不同的伺服TPI与磁盘表面之间的数据TPI比

    公开(公告)号:US07982993B1

    公开(公告)日:2011-07-19

    申请号:US12340309

    申请日:2008-12-19

    IPC分类号: G11B5/09 G11B5/596

    摘要: A disk drive is disclosed having a first disk surface, and a head actuated over the first disk surface. The first disk surface comprises a plurality of servo tracks and a plurality of data tracks. The data tracks of the first disk surface are banded together into a plurality of data zones, including a first data zone and a second data zone. A first servo tracks per inch (STPI) to data tracks per inch (DTPI) ratio of the first data zone is substantially different from a second STPI to DTPI ratio of the second data zone.

    摘要翻译: 公开了一种具有第一盘表面的磁盘驱动器,以及在第一盘表面上致动的磁头。 第一磁盘表面包括多个伺服磁道和多个数据磁道。 第一盘表面的数据轨迹被捆绑在一起,包括第一数据区和第二数据区。 与第一数据区的每英寸(DTPI)比的数据轨迹的每英寸的第一伺服轨迹(STPI)与第二数据区的第二STPI至DTPI比基本上不同。

    Methods and devices for preventing potential media errors from growing thermal asperities
    4.
    发明授权
    Methods and devices for preventing potential media errors from growing thermal asperities 有权
    防止潜在介质误差增加热凹凸的方法和装置

    公开(公告)号:US08694841B1

    公开(公告)日:2014-04-08

    申请号:US13528686

    申请日:2012-06-20

    IPC分类号: G11C29/00

    CPC分类号: G11B20/1889 G11B5/6076

    摘要: A method to enable defect margining of a disk drive may comprise executing a data access command on a target sector on the disk drive. Upon encountering a data access error at the target sector, an address of the target sector may be added to an error list. The address of the target sector in the error list may then be converted to a physical location on the disk drive. A thermal asperity scan may be performed at and around the physical location and, upon detecting a thermal asperity, and at least sectors around the detected thermal asperity may be margined, and the data stored within the margined sectors may be relocated. Instead of sectors, entire tracks may be margined and the data stored therein relocated to a spare or reserve location, one track at a time.

    摘要翻译: 启用磁盘驱动器的缺陷容限的方法可以包括在磁盘驱动器上的目标扇区上执行数据访问命令。 在目标扇区遇到数据访问错误时,目标扇区的地址可能被添加到错误列表中。 然后可以将错误列表中的目标扇区的地址转换为磁盘驱动器上的物理位置。 可以在物理位置处和周围执行热不平坦扫描,并且在检测到热不均匀性时,并且至少围绕检测到的热不均匀区域的扇区可以被保留,并且存储在边缘扇区内的数据可能被重新定位。 代替扇区,整个轨道可以是边缘,并且其中存储的数据被重新定位到备用或预留位置,一次一个轨道。

    Refresh operations using write/read commands
    5.
    发明授权
    Refresh operations using write/read commands 有权
    使用写/读命令刷新操作

    公开(公告)号:US08320067B1

    公开(公告)日:2012-11-27

    申请号:US12782681

    申请日:2010-05-18

    IPC分类号: G11B27/36

    摘要: Systems and methods for performing refresh operations using write/read commands are provided. In one embodiment, a disk drive comprises a disk partitioned into a plurality of refresh zones, a head configured to write data to and read data from the disk, and a controller. The controller is configured to receive an access command, to read data from at least one of the refresh zones using the head in response to the access command, to check a condition of the read data, and to determine whether to refresh the at least one refresh zone based on the condition of the read data, wherein the read data includes data from a portion of the at least one refresh zone not being accessed by the access command.

    摘要翻译: 提供了使用写入/读取命令执行刷新操作的系统和方法。 在一个实施例中,磁盘驱动器包括划分成多个刷新区域的磁盘,被配置为向盘写入数据和从盘读取数据的磁头以及控制器。 控制器被配置为接收访问命令,以响应于访问命令使用头部从至少一个刷新区域读取数据,以检查读取的数据的状况,并且确定是否刷新至少一个 刷新区域,其中所述读取数据包括来自所述访问命令未被所访问的所述至少一个刷新区域的一部分的数据。

    Disk drive executing retry operation after adjusting jog value in response to gain control
    6.
    发明授权
    Disk drive executing retry operation after adjusting jog value in response to gain control 有权
    磁盘驱动器在响应增益控制调整点动值后执行重试操作

    公开(公告)号:US08116025B1

    公开(公告)日:2012-02-14

    申请号:US12338798

    申请日:2008-12-18

    IPC分类号: G11B5/596 G11B27/36

    CPC分类号: G11B5/59622

    摘要: A disk drive is disclosed comprising a disk having a plurality of tracks, wherein each track comprises a plurality of data sectors. A head is actuated radially over the disk for generating a read signal. A first read of a data sector is performed while adjusting an amplitude of the read signal in response to a gain control setting. When an error occurs while attempting to first read the data sector, a first jog value is generated in response to the gain control setting. The head is served over the data sector in response to the first jog value, and a second read of the data sector is performed.

    摘要翻译: 公开了一种磁盘驱动器,其包括具有多个磁道的磁盘,其中每个磁道包括多个数据扇区。 磁头径向地驱动在磁盘上以产生读取信号。 在响应于增益控制设置调整读取信号的幅度的同时执行数据扇区的第一读取。 当尝试首次读取数据扇区时发生错误,响应于增益控制设置产生第一点动值。 头部响应于第一点动值被提供给数据扇区,并且执行数据扇区的第二次读取。

    Throttled command completion time
    7.
    发明授权
    Throttled command completion time 有权
    调节指挥完成时间

    公开(公告)号:US08271692B1

    公开(公告)日:2012-09-18

    申请号:US12895851

    申请日:2010-10-01

    IPC分类号: G06F3/00

    摘要: A storage device comprising a storage media and a controller is disclosed. The controller is configured to receive access commands from a host, to write data to or read data from the storage media based on the access commands, to detect a trigger event, and, when the trigger event is detected, to throttle back the access commands from the host based on an amount of data in a cache.

    摘要翻译: 公开了一种包括存储介质和控制器的存储设备。 控制器被配置为从主机接收访问命令,基于访问命令向存储介质写入数据或从存储介质读取数据,以检测触发事件,并且当检测到触发事件时,阻止访问命令 从主机基于高速缓存中的数据量。

    Disk drive to characterize misaligned servo wedges
    8.
    发明授权
    Disk drive to characterize misaligned servo wedges 有权
    磁盘驱动器来表征不对准的伺服楔

    公开(公告)号:US07212374B1

    公开(公告)日:2007-05-01

    申请号:US11250649

    申请日:2005-10-14

    IPC分类号: G11B5/596 G11B21/02

    CPC分类号: G11B5/59627 G11B5/5534

    摘要: Disclosed is a disk drive to characterize misaligned servo wedges. A disk of the disk drive includes a plurality of circumferential tracks, in which, each track includes a plurality of servo wedges spaced sequentially around the circumference of the track wherein the servo wedges may be misaligned relative to the head of the disk drive that moves about a pivot. A servo controller is used to characterize the misaligned servo wedges relative to the head during a seek operation by implementing the following operations: commanding the head to perform a seek operation from a starting track to an ending track; obtaining samples of wedge-to-wedge time (WTWT) values corresponding to time intervals between identified servo wedges for sampled tracks traversed during the seek operation; calculating WTWT variations for each sample; and calculating a calibrated misalignment value for each sample based upon WTWT variations.

    摘要翻译: 公开了一种用于表征不对准伺服楔的磁盘驱动器。 磁盘驱动器的盘包括多个周向轨道,其中,每个轨道包括围绕轨道圆周顺序间隔的多个伺服楔,其中伺服楔可能相对于磁盘驱动器的头部移动而围绕 一个枢纽 伺服控制器用于通过执行以下操作来表征在搜索操作期间相对于头部的不对准伺服楔块:命令头从起始轨到结束轨执行寻道操作; 获得对应于在寻道操作期间穿过的采样轨迹的识别的伺服楔之间的时间间隔的楔到楔时间(WTWT)值的样本; 计算每个样品的WTWT变化; 以及基于WTWT变化计算每个样本的校准的未对准值。

    Hard-disk drive work load profiling and capturing systems and methods
    9.
    发明授权
    Hard-disk drive work load profiling and capturing systems and methods 有权
    硬盘驱动器工作负载分析和捕获系统和方法

    公开(公告)号:US08793532B1

    公开(公告)日:2014-07-29

    申请号:US13358392

    申请日:2012-01-25

    IPC分类号: G06F11/00

    摘要: The application discloses systems that can include a monitoring module that is operative to provide an event indicator of an event occurring on a hard-disk drive. The systems can include a recording module that is operative to create an event record based on a logging instruction to log the event indicator. The systems can include an event linkage module that is operative to link the event record to a hard-disk drive activity indicator. The systems can include an error log formatting module that is operative to format the event record and a hard-disk drive activity indicator into a hard-disk drive error log. The systems can include a configuration module to set configuration flags and/or values. The error log can be stored on various areas of the hard-disk drive. The application also discloses related methods.

    摘要翻译: 该应用公开了可以包括监视模块的系统,该监视模块可操作以提供在硬盘驱动器上发生的事件的事件指示符。 系统可以包括记录模块,其可操作以基于记录事件指示符的记录指令来创建事件记录。 这些系统可以包括事件链接模块,其可操作以将事件记录链接到硬盘驱动器活动指示器。 系统可以包括错误日志格式化模块,用于将事件记录和硬盘驱动器活动指示器格式化为硬盘驱动器错误日志。 系统可以包括用于设置配置标志和/或值的配置模块。 错误日志可以存储在硬盘驱动器的各个区域。 该申请还公开了相关方法。