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1. 发明申请

US20210397361A1 DATA STORAGE DEVICE WITH BURN-AFTER-READ MODE 有权
公开(公告)号：US20210397361A1
公开(公告)日：2021-12-23
申请号：US16909018
申请日：2020-06-23
申请人： Western Digital Technologies, Inc.
发明人： Shaomin Xiong , Toshiki Hirano , William B. Boyle
IPC分类号： G06F3/06 , G06F11/10
摘要： A data storage device is disclosed comprising a non-volatile storage medium (NVSM), and a head configured to access the NVSM. During a first interval, the head is used to write first data to a first segment of the NVSM, and during a second interval, the head is used to read the first data from the first segment of the NVSM and erase at least part of the first data from the first segment of the NVSM.

2. 发明授权

US10381040B1 Dynamic hybrid shingled magnetic recording device 有权
公开(公告)号：US10381040B1
公开(公告)日：2019-08-13
申请号：US16024211
申请日：2018-06-29
申请人： Western Digital Technologies, Inc.
发明人： William B. Boyle , Shad H. Thorstenson
IPC分类号： G11B20/12 , G11B5/09 , G06F3/06
摘要： A write command is received to write data in a Conventional Magnetic Recording (CMR) realm of a disk to be formatted for writing data in non-overlapping tracks. The disk includes a plurality of areas of the disk that can be formatted as a CMR realm or as a Shingled Magnetic Recording (SMR) realm formatted for writing data in overlapping tracks. It is determined whether performance of the write command would require writing to begin in a portion of the CMR realm that has not been written with non-overlapping tracks. In response to determining that the performance of the write command would require writing to begin in a portion of the CMR realm that has not been written with non-overlapping tracks, a predefined data pattern is written using non-overlapping tracks in the portion of the CMR realm that has not been written with non-overlapping tracks.

3. 发明申请

US20190244638A1 DYNAMIC HYBRID SHINGLED MAGNETIC RECORDING 审中-公开
公开(公告)号：US20190244638A1
公开(公告)日：2019-08-08
申请号：US16024211
申请日：2018-06-29
申请人： Western Digital Technologies, Inc.
发明人： William B. Boyle , Shad H. Thorstenson
IPC分类号： G11B20/12 , G11B5/09
CPC分类号： G11B20/1217 , G06F3/068 , G06F3/0685 , G06F2212/217 , G11B5/09 , G11B20/12 , G11B2020/1238 , G11B2020/1247
摘要： A write command is received to write data in a Conventional Magnetic Recording (CMR) realm of a disk to be formatted for writing data in non-overlapping tracks. The disk includes a plurality of areas of the disk that can be formatted as a CMR realm or as a Shingled Magnetic Recording (SMR) realm formatted for writing data in overlapping tracks. It is determined whether performance of the write command would require writing to begin in a portion of the CMR realm that has not been written with non-overlapping tracks. In response to determining that the performance of the write command would require writing to begin in a portion of the CMR realm that has not been written with non-overlapping tracks, a predefined data pattern is written using non-overlapping tracks in the portion of the CMR realm that has not been written with non-overlapping tracks.

4. 发明授权

US08706985B1 System and method for optimizing garbage collection in data storage 有权
标题翻译：数据存储中垃圾收集优化的系统和方法
公开(公告)号：US08706985B1
公开(公告)日：2014-04-22
申请号：US13948495
申请日：2013-07-23
申请人： Western Digital Technologies, Inc.
发明人： William B. Boyle , Robert M. Fallone
IPC分类号： G06F12/00 , G06F12/02 , G06F12/10
CPC分类号： G06F12/0253 , G06F12/0238 , G06F12/0246 , G06F12/0802
摘要： The present invention is directed to systems and methods for optimizing garbage collection in data storage. The data storage may be a shingled disk drive or a non-volatile solid-state memory device. Garbage collection is optimized by selectively saving data read from certain locations of the data storage in response to host read commands and using the saved data for subsequent garbage collection operations. The decision of whether to save data may be based on a number of criteria, including whether the data is located in an area of the data storage that is due to be garbage collected in the near future. In this manner, certain garbage collection operations can be performed without having to re-read the saved data.
摘要翻译：本发明涉及用于优化数据存储中的垃圾收集的系统和方法。数据存储器可以是带状闪烁的磁盘驱动器或非易失性固态存储器件。通过选择性地保存从数据存储的某些位置读取数据以响应主机读取命令并使用保存的数据进行后续垃圾回收操作来优化垃圾收集。是否存储数据的决定可以基于多个标准，包括数据是否位于数据存储区域，这将在不久的将来被垃圾回收。以这种方式，可以执行某些垃圾回收操作，而不必重新读取保存的数据。

5. 发明申请

US20220068303A1 DATA STORAGE DEVICE COMPENSATING FOR HEAD/TAPE WEAR 有权
公开(公告)号：US20220068303A1
公开(公告)日：2022-03-03
申请号：US17178376
申请日：2021-02-18
申请人： Western Digital Technologies, Inc.
发明人： James N. Malina , Mark L. Watson , William B. Boyle , David W. Chew
IPC分类号： G11B5/55 , G11B5/255 , G11B20/18
摘要： A data storage device is disclosed comprising at least one head configured to access a magnetic tape. A plurality of access commands are stored in a command queue, and a wear value is generated for each access command in the command queue, wherein the wear value represents a level of wear on the head or magnetic tape associated with executing the access command. An execution order for the access commands is generated based on the wear values, and at least one of the access commands is executed based on the execution order.

6. 发明授权

US09064504B1 Electronic system with media recovery mechanism and method of operation thereof 有权
标题翻译：具有介质回收机构的电子系统及其操作方法
公开(公告)号：US09064504B1
公开(公告)日：2015-06-23
申请号：US14260641
申请日：2014-04-24
申请人： Western Digital Technologies, Inc.
发明人： Anthony P. Sannino , William B. Boyle , Bernhard Hiller , Jih-Ping Peng
IPC分类号： G11B21/02 , G11B5/02 , G11B21/08 , G11B5/60
CPC分类号： G11B5/02 , G11B5/455 , G11B5/6005 , G11B5/6011 , G11B5/6064 , G11B5/6076 , G11B21/08 , G11B2005/0021
摘要： An apparatus includes: a media; a head over the media; and control circuitry, coupled to the heads, configured to: select an operational head from the heads based on margin data collected under a lube waterfall condition, and perform an access to the media with the operational head.
摘要翻译：一种装置包括：媒体; 媒体头以及耦合到所述头部的控制电路，被配置为：基于在润滑瀑布状态下收集的余量数据从所述头部选择操作头部，并且使用所述操作头执行对所述介质的访问。

7. 发明授权

US11386925B2 Data storage device compensating for head/tape wear 有权
公开(公告)号：US11386925B2
公开(公告)日：2022-07-12
申请号：US17178376
申请日：2021-02-18
申请人： Western Digital Technologies, Inc.
发明人： James N. Malina , Mark L. Watson , William B. Boyle , David W. Chew
IPC分类号： G11B21/02 , G11B5/55 , G11B20/18 , G11B5/255
摘要： A data storage device is disclosed comprising at least one head configured to access a magnetic tape. A plurality of access commands are stored in a command queue, and a wear value is generated for each access command in the command queue, wherein the wear value represents a level of wear on the head or magnetic tape associated with executing the access command. An execution order for the access commands is generated based on the wear values, and at least one of the access commands is executed based on the execution order.

8. 发明授权

US11366602B2 Data storage device with burn-after-read mode 有权
公开(公告)号：US11366602B2
公开(公告)日：2022-06-21
申请号：US16909018
申请日：2020-06-23
申请人： Western Digital Technologies, Inc.
发明人： Shaomin Xiong , Toshiki Hirano , William B. Boyle
IPC分类号： G06F3/06 , G06F11/10
摘要： A data storage device is disclosed comprising a non-volatile storage medium (NVSM), and a head configured to access the NVSM. During a first interval, the head is used to write first data to a first segment of the NVSM, and during a second interval, the head is used to read the first data from the first segment of the NVSM and erase at least part of the first data from the first segment of the NVSM.

9. 发明授权

US10282096B1 Identification of data with predetermined data pattern 有权
公开(公告)号：US10282096B1
公开(公告)日：2019-05-07
申请号：US14574123
申请日：2014-12-17
申请人： Western Digital Technologies, Inc.
发明人： William B. Boyle
IPC分类号： G06F3/06 , G06F12/06 , G06F12/02
摘要： Managing data stored in a Data Storage Device (DSD) including a memory. A translation table is maintained mapping logical addresses for data to physical addresses corresponding to a location where the data is stored in the memory. A data pattern is identified of particular data to be stored in the memory or of particular data already stored in the memory, and it is indicated in the translation table that at least one logical address for the particular data is associated with the data pattern.

10. 发明授权

US09383923B1 Write pointer management for a disk drive 有权
标题翻译：为磁盘驱动器写入指针管理
公开(公告)号：US09383923B1
公开(公告)日：2016-07-05
申请号：US13662353
申请日：2012-10-26
申请人： Western Digital Technologies, Inc.
发明人： James N. Malina , Joo Peng Teh , Sang Huynh , Carl E. Barlow , Robert M. Fallone , William B. Boyle , Glenn Cheng , Kuang Hwa Teo , Peng Lee Liang , Daniel D. Reno
IPC分类号： G06F13/00 , G06F13/28 , G06F3/06 , G11B20/12
CPC分类号： G06F3/0608 , G06F3/0619 , G06F3/064 , G06F3/0676 , G11B20/10527 , G11B20/1217
摘要： Write pointer management for a disk drive including a disk having a plurality of sectors and a non-volatile memory (NVM) for storing data. Data is sequentially written sector by sector on the disk. The data written in a sector includes a write status indicator indicating that data has been written in the sector. A write pointer is stored on the disk or the NVM as a check-pointed write pointer. The write pointer corresponds to a current sector for writing data on the disk. During a write pointer recovery process, the check-pointed write pointer is retrieved, and at least one write status indicator is scanned in a range of sectors from the sector corresponding to the retrieved check-pointed write pointer and a last sector to identify the current sector for writing data. The write pointer is set to correspond to the identified current sector.
摘要翻译：为包含具有多个扇区的磁盘的磁盘驱动器写入指针管理和用于存储数据的非易失性存储器（NVM）。磁盘上逐个扇区依次写入数据。写入扇区的数据包括指示数据已被写入扇区的写状态指示符。一个写入指针作为一个检查指针的写入指针存储在磁盘或NVM上。写指针对应于在磁盘上写入数据的当前扇区。在写指针恢复过程期间，检索检查指示写指针，并且在与所检索的检查指针写指针和最后一个扇区相对应的扇区的范围内扫描至少一个写状态指示符，以识别当前部门编写数据。写指针被设置为对应于所识别的当前扇区。

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