Which device is NOT typically involved in establishing network segmentation controls?

Network segmentation controls are primarily about dividing a network into smaller, manageable sections to enhance security and performance. Devices that are part of this process typically include firewalls, routers, and switches, as they are configured to control traffic, enforce policies, and route data correctly between different segments.

Firewalls are crucial for monitoring and controlling incoming and outgoing network traffic based on predetermined security rules, effectively acting as a barrier between trusted internal networks and untrusted external networks. Routers can segment networks by directing traffic and can implement rules to manage data flow between different network segments, often utilizing access control lists.

Switched networks involve devices called switches that connect devices within the same network segment, enabling efficient data transfer and reducing broadcast traffic across the entire network. By controlling which devices can communicate with each other, switches play a key role in network segmentation.

On the other hand, physical storage devices, while important for data storage and management, do not play a direct role in the implementation of network segmentation controls. Their purpose is primarily to store data rather than manage or control network traffic or enforce policies that would segment networks. Therefore, among the given options, physical storage devices stand out as not typically involved in establishing network segmentation controls.