Pure Storage, Inc.

Seagate Technology Incorporated

Gordon James Coleman

Peter E Kirkpatrick

Andrew R Bernat

Hari Kannan

Eric D Seppanen

Wei Tang

Roland Dreier

Yuhong Mao

Boris Feigin

Damian Pablo Yurzola

Vidyabhushan Mohan

Melissa Kimble

Robert H Lee

John Roper

Yijie Zhao

Earl T Cohen

Benjamin Scholbrock

Zoltan DeWitt

Sankara Vaideeswaran

John Colgrove

Ronald S Karr

Erich Franz Haratsch

Zhengang Chen

Leonid Baryudin

Mark L McAuliffe

Ivana Djurdjevic

Grigori Inozemtsev

Hao Liu

Ian Juch

Daniel Sladic

Eric Kelly Blanchard

Phillip Hord

Douglas Lother

Haijie Xiao

Zhan Chen

Rongjin Qiao

A command to relocate data from a first set of data blocks at the plurality of storage devices to a second set of data blocks while bypassing the storage controller is transmitted by the storage controller. The command includes address information associated with the second set of blocks to store the relocated data.

Optimized read request processing for relocated data

A method includes, responsive to receiving a modified first reservation command from a storage controller, identifying, by a storage drive, a first range of storage based on a first range identifier of the modified reservation command. The method also includes granting, by the storage drive, a reservation for access to the storage drive on behalf of a first host controller by associating the reservation for the first range with a second range of storage.

Intelligent storage protocol modification of a distributed storage system

One or more performance parameters associated with data stored at a storage device of a plurality of storage devices are received by a storage controller. A first number of blocks of the storage device to a high resiliency portion and a second number of blocks of the storage device to a low resiliency portion of the storage device are allocated based on the one or more performance parameters.

Resiliency management in a storage system

A system and related method operate solid-states storage memory. The system performs a first tuning process that has a first set of tuning options, on a first portion of solid-states storage memory. The system identifies one or more second portions of solid-states storage memory, within the first portion of solid-states storage memory that fail readability after the first tuning process. The system performs a second tuning process that has a differing second set of tuning options, on each of the one or more second portions of solid-states storage memory.

Granular voltage tuning

Characteristics associated with a device are received from the device. Firmware for the device is generated based on the received characteristics.

Optimizing storage system performance using data characteristics

An indication is received from a storage device that an attempt to read a portion of data from a block of the storage device has failed. A command is transmitted to the storage device to perform a scan on data stored at the block comprising the portion of data to acquire failure information associated with a plurality of subsets of the data stored at the block. The failure information associated with the plurality of subsets of the data stored at the block is received from the storage device.

Acquiring failure information

A storage array controller may receive a write request comprising data to be stored at one or more solid-state storage devices. A write granularity associated with the write request may be generated that is less than a logical block size associated with the storage array controller. The data associated with the write request may be segmented based on the generated write granularity. The write request may be executed to store the segmented data at the one or more solid-state storage devices.

Writing data to a distributed storage system

A first amount of energy to be stored at one or more power loss protection (PLP) components is determined to enable storage of data at a plurality of storage devices of a storage system upon an occurrence of a power failure. A first voltage is provided to the one or more PLP components that corresponds to the first amount of energy. A second amount of energy to be stored at the one or more PLP components is determined based on a change in the storage system. A second voltage is provided to the one or more PLP components that corresponds to the second amount of energy.

Optimizing dynamic power loss protection adjustment in a storage system

Granting access to a storage device based on reservations

A priority queue including an order of local data relocation operations to be performed by a plurality of solid-state storage devices is maintained. An indication of a new local data relocation operation is received from a solid-state storage device of the plurality of solid-state storage devices for data stored at the solid-state storage device, the indication including information associated with the data. The new local data relocation operation is inserted into a position in the order of the priority queue based on the information associated with the data.

Queue management for data relocation

A storage unit has one or more processing devices, a solid-state drive and an open blocks cache memory. The open blocks cache memory holds open blocks of data or metadata and holds closed blocks of data or metadata pending writing to the solid-state drive. Closed blocks of data or metadata are written to the solid-state drive and open blocks of data or metadata are written to the open blocks cache memory. Values for open blocks in the open blocks cache memory are tracked. The values are adjusted in a first direction when an open block is written to the open blocks cache memory, and the values are adjusted in a second direction when an open block in the open blocks cache memory is closed and written from the open blocks cache memory to the solid-state drive.

Budgeting open blocks of a storage unit based on power loss prevention

Data associated with a write request is stored at a storage device of multiple solid-state storage devices. A determination as to whether the data stored at the storage device is readable is made by determining whether a number of subsequent programming operations have been performed since the data was stored at the storage device. A notification that the stored data is readable from the storage device is generated upon determining that the data is readable.

Readable data determination

A command to relocate data is transmitted by a storage controller. The command includes first address information associated with a first set of blocks storing the data at one or more storage devices using a first programming mode and second address information associated with a second set of blocks at the one or more storage devices to store the relocated data using a second programming mode. The command causes the relocation of the data from the first set of blocks to the second set of blocks while bypassing sending the data to the storage controller. An acknowledgement is received that the relocated data has been stored at the second number of blocks.

Relocation of data for heterogeneous storage systems

Optimizing block allocation in a data storage system

Write granularity for storage system

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Los Altos, CA, United States of America

Gordon James Coleman