Dell Products Inc.

Manmeet S Bindra

Puneet Kaushik

Satya Mylvara

Rushikesh Patil

Sergii Liashenko

User changes may be preserved across updates to a layer. When a layering client mounts a layer, a corresponding layering write cache is mounted. Changes to layered resources, such as files, registry entries, and registry values, are made only to the layering write cache. A request to create a file in the layer is directed to the layering write cache such that the new file is created in the layering write cache. A request to open a layered resource, is directed to the layered resource if the layered resource is in the layering write cache. A request to write to a layered resource is directed to the layering write cache if the layered resource is in the layering write cache. If the layered resource is not in the layering write cache, the layered resource is copied to the layering write cache before redirecting the write request.

Preserving user changes to a shared layered resource

A method of creating a new layer for an information handling system is disclosed. A layering client mounts a new layer at a layer storage medium accessible to the information handling system. A layering file system filter driver redirects a request to create a new file at a target file path to the layer storage medium and updates the file metadata to associate the target file path with the path to file created on the layer storage medium.

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San Jose, CA, United States of America

Manmeet S Bindra