In Huawei FusionCompute, what is critical to prevent data loss when multiple VMs access the same shared disk?

In Huawei FusionCompute, to prevent data loss when multiple virtual machines (VMs) access the same shared disk, the application software's access control is critical. This is because access control mechanisms can regulate and manage how different VMs interact with the shared disk, ensuring that concurrent writes or reads do not lead to data corruption or inconsistencies.

Access control helps enforce rules about which applications or VMs can read from or write to the shared disk, coordinating these operations effectively. By implementing proper locks, managing user permissions, and establishing transactional controls, the application can maintain data integrity even when multiple entities are trying to access the same resources simultaneously.

While network bandwidth management, hardware redundancy, and data encryption play important roles in an overall cloud infrastructure, they do not directly address the issue of concurrent disk access by multiple VMs. Network management focuses on optimizing data transfer rates, hardware redundancy ensures availability and fault tolerance, and data encryption secures information but does not necessarily prevent logical data integrity issues that arise from simultaneous access. Thus, application software's access control is essential for protecting data integrity in shared disk scenarios.