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公开(公告)号：US20190065488A1
公开(公告)日：2019-02-28
申请号：US15689395
申请日：2017-08-29
Applicant: Seagate Technology LLC
Inventor： Phillip R. Colline
Abstract: A write command includes data targeted to a data sector of a non-volatile memory. The data is committed to be stored in the data sector. Protection information bytes of the data are stored together with the data in the data sector, and the protection information bytes are copied to a distilled protection sector. A read request is received for the data and in response, the protection information in the data sector is validated against the copy of the protection information in the distilled protection sector.
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公开(公告)号：US20190065382A1
公开(公告)日：2019-02-28
申请号：US16106389
申请日：2018-08-21
Applicant: Seagate Technology LLC
IPC: G06F12/0868
Abstract: Method and apparatus for managing data in a data storage system. A storage array controller device is coupled to a plurality of storage devices by an external data path, with the storage devices used for non-volatile memory (NVM) storage of user data from a host. A copy back operation is initiated by issuing a copy back transfer command that identifies a selected data set stored in a source device and a unique identifier (ID) value that identifies a destination device. A peer-to-peer connection is established over the external data path in response to the copy back transfer command so that the selected data set is transferred from the source device to the destination device while bypassing the storage array controller device. Normal data transfers can be carried out between the storage array controller and the respective source and destination devices during the copy back operation.
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公开(公告)号：US20190062940A1
公开(公告)日：2019-02-28
申请号：US15686021
申请日：2017-08-24
Applicant: Seagate Technology LLC
Inventor： Zubair Ahmed Khan
CPC classification number: C25F1/00 , G11B5/3169 , G11B5/4826
Abstract: Particles are removed from electronic components, such as components of data storage devices by use of an electrochemical process. An electronic component is immersed in an electrochemical bath, and a voltage is applied across the +ve electrode and −ve electrode in an amount sufficient to remove charged particles present on a surface of the electronic component.
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公开(公告)号：US20190059161A1
公开(公告)日：2019-02-21
申请号：US15682354
申请日：2017-08-21
Applicant: Seagate Technology LLC
Inventor： Thomas Lee Schick , Robert Matousek , Sunil Anuprasad Patel
Abstract: A compact printed circuit board assembly includes a printed circuit board (PCB) and a preamplifier subassembly. The preamplifier subassembly includes a preamplifier and an insulating endcap abutting one another and arranged in a plane parallel to the PCB. An electrical via formed within the first insulating endcap provides an electrical connection between a decoupling capacitor and the PCB to reduce noise detectable in current flowing between the preamplifier and a current source.
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公开(公告)号：US20190056881A1
公开(公告)日：2019-02-21
申请号：US15680657
申请日：2017-08-18
Applicant: Seagate Technology LLC
Inventor： Timothy Richard Feldman , Steven S. Williams
IPC: G06F3/06
CPC classification number: G06F3/0644 , G06F3/0604 , G06F3/0608 , G06F3/061 , G06F3/0631 , G06F3/064 , G06F3/0661 , G06F3/0673 , G06F3/0685
Abstract: A data storage device includes a data store optimized organized into allocation units sized according to an sequential writing unit or garbage collection unit of the data store. Information is written to the allocation units as either coarse or fine-grained packets, which are packets of data that are self-describing and written together. Random writes received from a host to data already written into allocation units is written to another allocation unit, and a coarse-grained forward map is updated to reflect the physical location of the valid data that superseded data in the allocation unit until the allocation unit can be rewritten. Promotion operations are disclosed to compact data and garbage collect data by rewriting allocation units.
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Patent Agency Ranking
公开(公告)号：US10210899B1
公开(公告)日：2019-02-19
申请号：US15985430
申请日：2018-05-21
Applicant: Seagate Technology LLC
Inventor： Antonia Tsoukatos , Tim Rausch , Mehmet Fatih Erden , Benjamin W Parish , Prasanna Manja Ramakrishna , John D Reinhardt , Morovat Bryan Tayefeh
Abstract: A method for scanning for flaws on a magnetic recording medium is disclosed. The magnetic recording medium has a first set of nonconsecutive data tracks and a second set of nonconsecutive data tracks. The method includes writing a test pattern to only the first set of nonconsecutive data tracks of the magnetic recording medium, reading of the test pattern written to the first set of nonconsecutive data tracks, and identifying flaws within the first set of nonconsecutive data tracks and the second set of nonconsecutive data tracks based on the reading the test pattern.
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公开(公告)号：US20190051329A1
公开(公告)日：2019-02-14
申请号：US15676550
申请日：2017-08-14
Applicant: Seagate Technology LLC
Inventor： Qiang Bi , Kian Keong Ooi , Christopher M. Woldemar , ShihMing Lau
IPC: G11B20/18 , G06F12/0866 , G06F11/07 , G11B20/12
Abstract: The disclosed technology provides a system and method that improves interlaced magnetic recording (IMR) data throughput in vibration in storage systems. In one implementation, a method includes determining whether there are write retry operations in the IMR storage device, determining whether bottom track caching space is available responsive to determining whether there are write retry operations in the IMR storage device, performing a vibration detection scheme to identify vibration events responsive to determining whether bottom track caching space is available, determining if a number of vibration events is above a predetermined threshold, and writing data to available bottom track caching space responsive to determining if the number of vibration events is above a predetermined threshold.
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公开(公告)号：US20190050351A1
公开(公告)日：2019-02-14
申请号：US15991031
申请日：2018-05-29
Applicant: Seagate Technology LLC
Inventor： Rakesh Kumar Sahu , Manish Gajjaria , Svalbard Colaco
Abstract: An apparatus includes a host and a baseboard. An out-of-band request is received via a host network interface of the host. The baseboard includes a management controller operating independently of the host and coupled to a management network interface separate from the host network interface. The out-of-band request is sent via an in-band communications channel from a proxy server of the host to a management agent running on the management controller microprocessor. Management data is formatted via the management agent. The management data is sent to the proxy server via the in-band communications channel. The management data describes hardware status that is obtained via the management controller in response to the out-of-band request. The management data is sent from the host network interface in response to the out-of-band request.
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公开(公告)号：US20190050163A1
公开(公告)日：2019-02-14
申请号：US15676709
申请日：2017-08-14
Applicant: Seagate Technology LLC
Inventor： Douglas William Dewey , Ian Davies
IPC: G06F3/06
Abstract: A storage system migrates pages of data based on a determination that the page includes snapshot data. Parameters associated with a page (e.g., a page rank) may be updated based on a determination that the page includes snapshot data. A tiering process may subsequently analyze the parameters to determine whether to migrate the page to a different storage tier. A share-write to a page that is referenced by the snapshot volume and a base volume is utilized to migrate pages that include snapshot data.
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公开(公告)号：US20190042379A1
公开(公告)日：2019-02-07
申请号：US16052108
申请日：2018-08-01
Applicant: Seagate Technology LLC
Inventor： Mehmet Emin Aklik , Ryan James Goss , Antoine Khoueir , Nicholas Odin Lien
IPC: G06F11/20
Abstract: Systems and methods presented herein provide for failure detection and data recovery in a storage system. In one embodiment, a method operable in a storage system comprises locating failures in data blocks in storage area of a storage device, categorizing the failures into block groups, each block group comprising one or more data blocks having failures, and halting input/output (I/O) operations to data blocks in a first of the block groups due to the failures of the first block group. The method also includes detecting additional failures in one or more data blocks of other block groups remaining in the storage area, and determining when to fail the storage area of the storage device based on the detected failures.
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