公开(公告)号：US20200066303A1

公开(公告)日：2020-02-27

申请号：US16667138

申请日：2019-10-29

Applicant: Amazon Technologies, Inc.

Inventor： Munif M. Farhan ,  Thomas Grant Slatton ,  Douglas Stewart Laurence

IPC: G11B20/12

Abstract: Technologies are provided for partially updating shingled magnetic recording (SMR) zones in SMR storage devices. An SMR storage device can receive and process a command to update a write pointer for an SMR zone to point to an arbitrary write position within the SMR zone. A partial SMR zone update command can be received and processed to modify part of the data stored in the SMR zone. A write position within the SMR zone where data to be modified is stored can be identified. Data stored in the SMR zone following the identified write position can be read to a temporary location and modified. A write pointer for the SMR zone can be updated to point to the identified write position. The modified data can then be written to the SMR zone, starting at the write position identified by the write pointer, or to another SMR zone of the storage device.

公开(公告)号：US10923152B2

公开(公告)日：2021-02-16

申请号：US16667138

申请日：2019-10-29

Applicant: Amazon Technologies, Inc.

Inventor： Munif M. Farhan ,  Thomas Grant Slatton ,  Douglas Stewart Laurence

IPC: G11B20/12 ,  G11B20/10

Abstract: Technologies are provided for partially updating shingled magnetic recording (SMR) zones in SMR storage devices. An SMR storage device can receive and process a command to update a write pointer for an SMR zone to point to an arbitrary write position within the SMR zone. A partial SMR zone update command can be received and processed to modify part of the data stored in the SMR zone. A write position within the SMR zone where data to be modified is stored can be identified. Data stored in the SMR zone following the identified write position can be read to a temporary location and modified. A write pointer for the SMR zone can be updated to point to the identified write position. The modified data can then be written to the SMR zone, starting at the write position identified by the write pointer, or to another SMR zone of the storage device.

公开(公告)号：US10460759B1

公开(公告)日：2019-10-29

申请号：US16005135

申请日：2018-06-11

Applicant: Amazon Technologies, Inc.

Inventor： Munif M. Farhan ,  Thomas Grant Slatton ,  Douglas Stewart Laurence

IPC: G11B20/12 ,  G11B20/10

Abstract: Technologies are provided for partially updating shingled magnetic recording (SMR) zones in SMR storage devices. An SMR storage device can receive and process a command to update a write pointer for an SMR zone to point to an arbitrary write position within the SMR zone. A partial SMR zone update command can be received and processed to modify part of the data stored in the SMR zone. A write position within the SMR zone where data to be modified is stored can be identified. Data stored in the SMR zone following the identified write position can be read to a temporary location and modified. A write pointer for the SMR zone can be updated to point to the identified write position. The modified data can then be written to the SMR zone, starting at the write position identified by the write pointer, or to another SMR zone of the storage device.

公开(公告)号：US11301164B1

公开(公告)日：2022-04-12

申请号：US16712499

申请日：2019-12-12

Applicant: Amazon Technologies, Inc.

Inventor： Seth W. Markle ,  Thomas Grant Slatton ,  Andrew Kent Warfield ,  Munif M. Farhan

IPC: G06F3/06

Abstract: A multi-actuator storage device includes separate actuators that can be used to access a storage medium. A property of a request can be analyzed to determine which actuator to use to access data associated with the request. For example, high-priority requests can be handled by an actuator designated for random I/O requests, whereas low-priority requests can be handled by an actuator designated for sequential I/O requests. Writes can be treated as low-priority requests. In a particular embodiment, a priority bit can be used to determine which actuator is used to access the data.

公开(公告)号：US09997194B1

公开(公告)日：2018-06-12

申请号：US15714676

申请日：2017-09-25

Applicant: Amazon Technologies, Inc.

Inventor： Munif M. Farhan ,  Thomas Grant Slatton ,  Douglas Stewart Laurence

IPC: G11B20/12 ,  G11B20/10

CPC classification number: G11B20/1217 ,  G11B2020/10898 ,  G11B2020/1242

Abstract: Technologies are provided for partially updating shingled magnetic recording (SMR) zones in SMR storage devices. An SMR storage device can receive and process a command to update a write pointer for an SMR zone to point to an arbitrary write position within the SMR zone. A partial SMR zone update command can be received and processed to modify part of the data stored in the SMR zone. A write position within the SMR zone where data to be modified is stored can be identified. Data stored in the SMR zone following the identified write position can be read to a temporary location and modified. A write pointer for the SMR zone can be updated to point to the identified write position. The modified data can then be written to the SMR zone, starting at the write position identified by the write pointer, or to another SMR zone of the storage device.