Pure Storage, Inc.

John Adler

Andrew R Bernat

Radek Aster

Benjamin Scholbrock

Tsu-Hao Chang

Yunpeng Duan

Conner Haffner

Jaesoo Lee

A method, apparatus, and computer program product for managing permissions for processing input/output (I/O) operations in a storage system is disclosed that includes a plurality of storage system controllers and a plurality of storage devices. The method comprises determining that a permission associated with a storage system controller for issuing I/O operations to the storage devices should be invalidated and, in response to the determination, modifying at least one I/O capability of the storage system controller.

Managing permissions for processing input/output (I/O) operations in a storage system

A system includes a solid-state storage array having a plurality of solid-state storage devices and a storage controller coupled to the solid-state storage array, the storage controller including a processing device, the processing device to select a segment height based on erase block sizes of the plurality of solid-state storage devices. The processing device is further to program a data segment using the segment height to a data stripe across two or more of the plurality of solid-state storage devices and store the segment height in metadata associated with the data segment.

Dynamically selecting segment heights in a heterogeneous RAID group

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Mountain View, CA, United States of America

John Adler