Qumulo, Inc.

Edward Carpenter

Thomas Gregory Rothschilds

Peter John Godman

Kiran V Bhageshpur

Patrick Jakubowski

Duncan Robert Fairbanks

Zexuan Wang

Aaron Passey

Ying Fairweather

Tripurari Volpe

Embodiments manage data in a file system. A plurality of file system operations may be executed in the file system based on a file system client action or a file system administrative action such that the file system may be integrated with an infrastructure of the network that includes network devices. Messages associated with some of network devices may be employed to perform one or more actions, including: determining one or more file system operations of the plurality of file system operations that may be associated with the network devices based on the messages; modifying the infrastructure associated with the network devices in response to the messages or the one or more file system operations; modifying the one or more file system operations in response to the modified infrastructure; executing the one or more modified file system operations; or the like.

Integrating file system operations with network infrastructure

Embodiments manage data in a file system over a network. A plurality of file system operations in the file system may be executed based on a file system client action or a file system administrative action such that the file system may be integrated with a network. Characteristics of the plurality network components in the network infrastructure that may be associated with the file system may be determined. Tests may be generated based on the characteristics of the network components such that the tests may be executed to evaluate the network components. Results of the tests may be employed to perform further actions, including determining non-compliant network components based on the results; modifying the network infrastructure based on the non-compliant network components such that one or more of file system operations are modified based on the non-compliant network devices; executing the modified file system operations on the modified network infrastructure.

Verifying performance characteristics of network infrastructure for file systems

Embodiments are directed to managing data in a file system. In response to a request from a client of a spoke file system to access file system items shared by a hub file system: determining a portion of the spoke file systems that may have an existing lock on the file system items; obtaining log entries from the portion of the spoke file systems such that the log entries are associated with commands that were executed in the portion of the spoke file systems; executing the commands in the hub file system to update the file system items in the hub file system; granting a lock on the file system items in the hub file system that enables the client to access the updated file system items from the spoke file systems.

Global namespaces for distributed file systems

Embodiments are directed to managing data in a file system. A file system that includes a file storage tier and a cache storage tier may be provided. An amount of hot blocks present in the cache storage tier that are associated with a heat score that matches a maximum heat score value may be determined. In response to the amount of hot blocks exceeding an amount threshold value further actions may be performed, including: determining each cooldown block in the cache storage tier based on each heat score associated with each block in the cache storage tier; and decrementing the heat score associated with each cooldown block. In response to one or more blocks in the cache storage tier being read, the heat score associated with the one or more blocks being read may be set to the maximum heat score value.

Storage tier management for file systems

Embodiments are directed to a file system engine that provides a file system that includes a plurality of blocks on a file storage tier with portion of the blocks associated with a cache storage tier. A cache engine provides heat extents that include a heat score and a run length value such that the heat extents are represent activities associated with the blocks. Heat extents associated with file system activities are determined based on a position of the blocks that corresponds with the run length values of the heat extents and sectors on the file storage tier. Heat scores associated with the heat extents may be modified based on the activities and distribution models to conform the heat extents with the distribution models. Blocks associated with heat scores that are less than a threshold value provided by the distribution models may be disassociated from the cache storage tier.

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Seattle, WA, United States of America

Edward Carpenter