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公开(公告)号：US20180088833A1
公开(公告)日：2018-03-29
申请号：US15278068
申请日：2016-09-28
Applicant: Seagate Technology LLC
Inventor： Harry Tiotantra , Kai C. Chen , WenXiang Xie , Feng Shen
IPC: G06F3/06
CPC classification number: G06F3/0613 , G06F3/0635 , G06F3/0659 , G06F3/068
Abstract: Apparatus and method for managing data in a hybrid data storage device. In some embodiments, a hybrid data storage device operates in a normal mode in which data transfer commands received from a host device are serviced by a top level controller circuit which directs a first subset of the received data transfer commands to a non-volatile rotatable recording memory and a second subset of the received data transfer commands are directed to a non-volatile solid-state memory. The controller circuit transitions to a performance mode responsive to a detected first parameter so that subsequently received data transfer commands are directed exclusively to the solid-state memory. The controller circuit terminates the performance mode and resumes the normal mode responsive to a detected second parameter.
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公开(公告)号：US09594628B2
公开(公告)日：2017-03-14
申请号：US14447202
申请日：2014-07-30
Applicant: Seagate Technology LLC
Inventor： Michael J C Toh , WenXiang Xie , Xiong Liu , Timothy Richard Feldman , Paul Michael Wiggins , Gregory Paul Moller
CPC classification number: G06F11/1044 , G06F11/1012 , G06F11/1064 , G06F11/1072 , G06F12/0246 , G06F12/0875 , G06F2212/2228 , G06F2212/7211
Abstract: Apparatus and method for managing a media cache through the monitoring of operational vibration of a data storage device. In some embodiments, a non-volatile media cache of the data storage device is partitioned into at least first and second zones having different data recording characteristics. Input data are received for storage in a non-volatile main memory of the data storage device. An amount of operational vibration associated with the data storage device is measured. The input data are stored in a selected one of the first or second zones of the media cache prior to transfer to the main memory responsive to a comparison of the measured amount of operational vibration to a predetermined operational vibration threshold.
Abstract translation: 通过监视数据存储装置的操作振动来管理媒体缓存的装置和方法。 在一些实施例中，数据存储设备的非易失性介质缓存被分割成具有不同数据记录特性的至少第一和第二区域。 接收输入数据以存储在数据存储装置的非易失性主存储器中。 测量与数据存储装置相关联的操作振动量。 响应于测量的操作振动量与预定的操作振动阈值的比较，将输入数据存储在介质高速缓冲存储器的第一或第二区域中的一个中，然后再传送到主存储器。
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公开(公告)号：US09377956B1
公开(公告)日：2016-06-28
申请号：US14671277
申请日：2015-03-27
Applicant: Seagate Technology LLC
Inventor： Xiong Liu , Brian T Edgar , Feng Shen , WenXiang Xie , ThanZaw Thein
CPC classification number: G06F3/061 , G06F3/0655 , G06F3/0677 , G06F3/0679 , G06F2206/1014 , G11B20/10527 , G11B20/1217 , G11B2020/1238
Abstract: Systems and methods are disclosed for performing rewrite operations on recording bands of a data storage medium. In some embodiments, a storage device may receive a write request to be recorded to a band including a plurality of contiguous data storage areas (e.g. tracks) spanning from a first storage area to a last storage area. The device may determine a target area of the band to which to record the data, and perform a partial rewrite operation on less than all data storage areas of the band when the target area is not within a threshold number of data storage areas from the first storage area. In some embodiments, the rewrite operation may include reading data recorded in a first arrangement from the target band, modifying the data, and recording the modified data to the band in a second arrangement including a physical recording order different than the first arrangement.
Abstract translation: 公开了用于对数据存储介质的记录带执行重写操作的系统和方法。 在一些实施例中，存储设备可以接收要被记录到包括跨越从第一存储区域到最后存储区域的多个相邻数据存储区域（例如，轨道）的频带的写入请求。 设备可以确定要记录数据的频带的目标区域，并且当目标区域不在来自第一个的数据存储区域的阈值数目内时，对小于该频带的所有数据存储区域的部分重写操作执行 储藏区域。 在一些实施例中，重写操作可以包括从目标频带读取记录在第一布置中的数据，修改数据，并以包括不同于第一布置的物理记录顺序的第二布置将修改的数据记录到频带。
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公开(公告)号：US09047923B1
公开(公告)日：2015-06-02
申请号：US14307805
申请日：2014-06-18
Applicant: Seagate Technology LLC
Inventor： CheeWai Lum , WenXiang Xie , Xiong Liu , Jian Qiang
Abstract: Implementations disclosed herein provide a method comprising determining used shingled data tracks adjacent to a target track using a track usage monitoring scheme, and reading the used shingled data tracks to perform a write operation to the target track.
Abstract translation: 本文公开的实施方案提供了一种方法，包括使用轨道使用监视方案来确定与目标轨道相邻的使用的带状键盘数据轨道，以及读取所使用的带状键盘数据轨道以对目标轨道执行写入操作。
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公开(公告)号：US11081135B2
公开(公告)日：2021-08-03
申请号：US16653732
申请日：2019-10-15
Applicant: Seagate Technology LLC
Inventor： Jian Qiang , Xiong Liu , WenXiang Xie
IPC: G11B5/012 , G11B20/18 , G11B20/12 , G06F12/0875 , G06F12/0888 , G06F12/0871 , G11B20/10 , G06F12/0868
Abstract: The disclosed technology provides a method that improves CCT in SMR device systems. In one implementation, the method comprises writing data to a shingled magnetic recording (SMR) band in a storage device, determining whether an off-track write has occurred, identifying unsafe written data in response to determining that an off-track write has occurred, determining whether caching space is available upon identifying unsafe written data, continue writing data to the SMR band without a write retry upon determining that caching space is available, and writing unsafe written data to the available caching space. In another implementation, the method comprises receiving a request to repair an encroached track in an SMR band, recovering encroached data to a dynamic random-access memory, determining whether caching space is available, writing the recovered data to the available caching space upon determining that caching space is available, and merging other cached data in the SMR band.
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Patent Agency Ranking
公开(公告)号：US10725925B2
公开(公告)日：2020-07-28
申请号：US16130082
申请日：2018-09-13
Applicant: Seagate Technology LLC
Inventor： Chee Hou Peng , Mun Kai Lye , WenXiang Xie , Vincent Uy
IPC: G06F12/0891 , G06F12/0868 , G06F12/0888
Abstract: A method writing data received from a host device includes determining whether command data of a write command includes metadata, flushing the command data out of a volatile write cache according to a first caching policy responsive to a determination that the command data does includes metadata, and flushing the command data out of the volatile write cache according to a second different caching policy responsive to a determination that the command data does not include metadata.
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公开(公告)号：US10580468B2
公开(公告)日：2020-03-03
申请号：US15720115
申请日：2017-09-29
Applicant: Seagate Technology LLC
Inventor： Andrew Michael Kowles , Mark Gaertner , Xiong Liu , WenXiang Xie , Kai Yang , Jiangnan Lin
IPC: G06F12/00 , G11C7/22 , G11B5/31 , G11C11/409 , G06F12/0871 , G02B3/10
Abstract: In accordance with one implementation, a method for reducing cache service time includes determining an access time parameter associated with movement of a read/write head to an access location for each of a plurality of contiguous cache storage segments and dynamically selecting one of the plurality of contiguous cache storage segments to store data based on the determined access time parameter.
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公开(公告)号：US10540110B2
公开(公告)日：2020-01-21
申请号：US15944235
申请日：2018-04-03
Applicant: Seagate Technology LLC
Inventor： Xiong Liu , Jiangnan Lin , WenXiang Xie
Abstract: A data-storing method for accelerated read throughput of a channel received as part of a multi-channel data stream includes writing a first channel segment of the multi-channel data stream to a first continuous sequence of physical blocks along a first data track of a storage medium within a storage device and identifying a second channel segment of the multi-channel data stream as being a continuation of the first channel segment. The method further includes writing the second channel segment to a second continuous sequence of physical blocks along a second data track responsive to the identification, the second continuous sequence of physical blocks being offset from the first continuous sequence in a down-track direction by a minimum block offset, the minimum block offset representing at least a number of physical blocks on the storage medium that rotate below a read/write element of the storage device during a time that the read/write element is moved from the first data track to the second data track.
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公开(公告)号：US10460760B2
公开(公告)日：2019-10-29
申请号：US15656278
申请日：2017-07-21
Applicant: Seagate Technology LLC
Inventor： Jian Qiang , Xiong Liu , WenXiang Xie
IPC: G11B20/12 , G11B20/18 , G11B5/012 , G06F12/0875 , G11B20/10
Abstract: The disclosed technology provides a method that improves CCT in SMR device systems. In one implementation, the method comprises writing data to a shingled magnetic recording (SMR) band in a storage device, determining whether an off-track write has occurred, identifying unsafe written data in response to determining that an off-track write has occurred, determining whether caching space is available upon identifying unsafe written data, continue writing data to the SMR band without a write retry upon determining that caching space is available, and writing unsafe written data to the available caching space. In another implementation, the method comprises receiving a request to repair an encroached track in an SMR band, recovering encroached data to a dynamic random-access memory, determining whether caching space is available, writing the recovered data to the available caching space upon determining that caching space is available, and merging other cached data in the SMR band.
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公开(公告)号：US20190278594A1
公开(公告)日：2019-09-12
申请号：US15914598
申请日：2018-03-07
Applicant: Seagate Technology LLC
Inventor： Xiong Liu , WenXiang Xie , Quan Li , Jian Qiang
IPC: G06F9/30 , G06F12/02 , G06F12/0866 , G06F12/0893
Abstract: In one implementation, this disclosure provides a method for executing a partial band rewrite operation comprising identifying a first track of a shingled data band to receive data of a write received at a shingled media storage device and writing a first subset of the received data to a media cache, where the first subset corresponds to the first track of the shingled data band to receive data of the write command. The method also includes writing a remaining subset of the received data to target locations within the shingled data band without updating data on the first track within the shingled data band corresponding to the first subset of the received data.
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