In Huawei FusionCompute, what happens to DRS rules for virtual machines bound to USB devices?

In Huawei FusionCompute, DRS (Distributed Resource Scheduler) rules specifically state that when virtual machines are bound to USB devices, those rules do not take effect. This is important because binding a virtual machine to a USB device creates a dependency, which can affect the ability of DRS to migrate or load balance those virtual machines across hosts.

When a virtual machine is directly tied to a physical USB device, it cannot be moved to another host without losing access to that USB device, which fundamentally changes how resource management and optimization can be implemented through DRS. The primary role of DRS is to enhance resource utilization by moving workloads around; however, when a VM has a specific dependency like a USB device, it becomes static in nature regarding DRS operations.

This understanding highlights the limitations of DRS in scenarios where specific hardware bindings are applied to virtual machines. Therefore, it’s critical for administrators to account for these scenarios when planning and configuring their virtual environments to ensure that resource management processes operate smoothly without interruptions caused by hardware dependencies.