公开(公告)号：US11221956B2

公开(公告)日：2022-01-11

申请号：US15609651

申请日：2017-05-31

申请人： Seagate Technology LLC

发明人： Nitin Satishchandra Kabra ,  Jackson Ellis ,  Niranjan Anant Pol ,  Mark Ish

IPC分类号： G06F12/0873 ,  G06F12/128 ,  G06F12/02

摘要： A hybrid storage device with three-level memory mapping is provided. An illustrative device comprises a primary storage device comprising a plurality of primary sub-blocks; a cache memory device comprising a plurality of cache sub-blocks implemented as a cache for the primary storage device; and a controller configured to map at least one portion of one or more primary sub-blocks of the primary storage device stored in the cache to a physical location in the cache memory device using at least one table identifying portions of the primary storage device that are cached in one or more of the cache sub-blocks of the cache memory device, wherein a size of the at least one table is independent of a capacity of the primary storage device.

公开(公告)号：US11216345B2

公开(公告)日：2022-01-04

申请号：US16560855

申请日：2019-09-04

申请人： Seagate Technology LLC

发明人： David S. Ebsen ,  Kevin A. Gomez ,  Mark Ish ,  Daniel J. Benjamin

IPC分类号： G06F11/00 ,  G06F11/14 ,  G06F11/07 ,  G06F11/10

摘要： Systems and methods for limiting performance variation in a storage device are described. Storage devices receive work requests to perform one or more operations from other computing devices, such as a host computing device. Completing the work requests may take a response time. In some embodiments, if the response time of executing the work request exceeds a threshold, the storage device may assign additional computing resources to complete the work request.

公开(公告)号：US10559376B2

公开(公告)日：2020-02-11

申请号：US16148409

申请日：2018-10-01

申请人： Seagate Technology LLC

发明人： Timothy Canepa ,  Mark Ish ,  David S. Ebsen

IPC分类号： G06F12/00 ,  G11C29/00 ,  G06F12/02 ,  G11C11/00 ,  G11C7/18 ,  G11C8/14 ,  G11C7/10

摘要： A data storage device can have at least a buffer memory, a selection module, and a non-volatile memory. The buffer memory and non-volatile memory may consist of different types of memory while the non-volatile memory has one or more rewritable in-place memory cells. The buffer memory and non-volatile memory may each store data associated with a pending data request as directed by the selection module until a settle time of the rewritable in-place memory cell has expired.

公开(公告)号：US10534541B2

公开(公告)日：2020-01-14

申请号：US15709681

申请日：2017-09-20

申请人： Seagate Technology LLC

发明人： Mark Ish ,  Siddhartha Kumar Panda ,  Dileep Kumar Sharma ,  Durga Prasad Bhattarai

IPC分类号： G06F13/40 ,  G06F3/06 ,  G06F13/42

摘要： Method and apparatus for asynchronous discovery of processing and storage nodes coupled via an expander switch in a fabric. In some embodiments, an initiator device operates as a processing node to transfer data to and from a non-volatile memory (NVM) of a target device at a storage node. One of the initiator or target devices is activated prior to the other device. The second activated device broadcasts a discovery command responsive to the activation of the second activated device and prior to receipt of a request for the discovery command from the first activated device. The first activated device processes the discovery command to establish an I/O communication link between the first activated device and the second activated device. The discovery command may include a non-volatile memory express (NVMe) controller list, and the NVM may be arranged as one or more NVMe namespaces.

公开(公告)号：US20190096506A1

公开(公告)日：2019-03-28

申请号：US16148409

申请日：2018-10-01

申请人： Seagate Technology LLC

发明人： Timothy Canepa ,  Mark Ish ,  David S. Ebsen

IPC分类号： G11C29/00 ,  G11C11/00 ,  G06F12/02 ,  G11C7/10 ,  G11C7/18 ,  G11C8/14

CPC分类号： G11C29/789 ,  G06F12/0238 ,  G06F12/08 ,  G06F12/0868 ,  G06F2212/1016 ,  G06F2212/211 ,  G06F2212/214 ,  G06F2212/7203 ,  G11C7/1006 ,  G11C7/1084 ,  G11C7/18 ,  G11C8/14 ,  G11C11/005 ,  G11C2207/102 ,  G11C2207/2245 ,  G11C2207/2272

摘要： A data storage device can have at least a buffer memory, a selection module, and a non-volatile memory. The buffer memory and non-volatile memory may consist of different types of memory while the non-volatile memory has one or more rewritable in-place memory cells. The buffer memory and non-volatile memory may each store data associated with a pending data request as directed by the selection module until a settle time of the rewritable in-place memory cell has expired.

公开(公告)号：US10090067B1

公开(公告)日：2018-10-02

申请号：US15608100

申请日：2017-05-30

申请人： Seagate Technology LLC

发明人： Timothy Canepa ,  Mark Ish ,  David S. Ebsen

IPC分类号： G11C29/00 ,  G11C11/406 ,  G06F12/02 ,  G11C7/18 ,  G11C8/14

摘要： A data storage device can have at least a buffer memory, a selection module, and a non-volatile memory. The buffer memory and non-volatile memory may consist of different types of memory while the non-volatile memory has one or more rewritable in-place memory cells. The buffer memory and non-volatile memory may each store data associated with a pending data request as directed by the selection module until a settle time of the rewritable in-place memory cell has expired.

公开(公告)号：US20180046408A1

公开(公告)日：2018-02-15

申请号：US15232682

申请日：2016-08-09

申请人： SEAGATE TECHNOLOGY LLC

发明人： David S. Ebsen ,  Kevin A. Gomez ,  Mark Ish ,  Daniel J. Benjamin

IPC分类号： G06F3/06

CPC分类号： G06F3/0634 ,  G06F1/3221 ,  G06F1/3268 ,  G06F1/3275 ,  G06F3/0625 ,  G06F3/0659 ,  G06F3/0683 ,  Y02D10/14 ,  Y02D10/154

摘要： Systems and methods for active power management are described. In one embodiment, the systems and methods include obtaining power dissipation metrics for a plurality of components under one or more operating scenarios, generating a reference dissipation model based on the power dissipation metrics of the plurality of components, and implementing the reference dissipation model in a storage system to make component scheduling decisions in relation to power management of the storage system. In some embodiments, the storage system includes any combination of a hard disk drive, a solid state drive, a hybrid drive, and a system of multiple storage drives.

公开(公告)号：US20180032264A1

公开(公告)日：2018-02-01

申请号：US15224428

申请日：2016-07-29

申请人： SEAGATE TECHNOLOGY LLC

发明人： Kevin A. Gomez ,  Mark Ish ,  David S. Ebsen ,  Daniel J. Benjamin

IPC分类号： G06F3/06

CPC分类号： G06F3/0683 ,  G06F3/061 ,  G06F3/0619 ,  G06F3/065

摘要： Systems and methods for reducing read latency by storing a redundant copy of data are described. In one embodiment, the systems and methods include identifying data assigned to be written to a page of a storage device, storing the data in a page of a first die of the storage device, and saving at least one codeword from the data to a page of a second die. In some embodiments, the first die is associated with a first channel of the storage device and the second die is associated with a second channel of the storage device.

公开(公告)号：US20170329707A1

公开(公告)日：2017-11-16

申请号：US15152374

申请日：2016-05-11

申请人： Seagate Technology LLC

发明人： Shashank Nemawarkar ,  Balakrishnan Sundararaman ,  Mark Ish ,  Siddhartha Kumar Panda ,  Bagavathy Raj Arunachalam

IPC分类号： G06F12/0804 ,  G06F3/06 ,  G06F11/07 ,  G06F1/30 ,  G06F12/0868

CPC分类号： G06F12/0804 ,  G06F3/0619 ,  G06F3/0647 ,  G06F3/0683 ,  G06F11/1441 ,  G06F11/1446 ,  G06F11/2015 ,  G06F12/0868 ,  G06F2212/1032 ,  G06F2212/281 ,  G06F2212/313 ,  G06F2212/7208

摘要： The disclosed technology provides for selection of a subset of available non-volatile memory devices in an array to receive a dirty cache data of a volatile cache responsive to detection of a power failure. In one implementation, the selection of the non-volatile memory devices is based on one or more predictive power parameters usable to estimate a time remaining during which a reserve power supply can support a cache offload to the selected subset of devices.