Which operation can be performed when modifying a disk of a virtual machine in Huawei FusionCompute?

When modifying a disk of a virtual machine in Huawei FusionCompute, changing the disk mode from "slave" to "independent-persistent" is a valid operation. In virtualization environments, disk modes determine how data is managed and retained across virtual machine reboots or snapshots.

In this case, "independent-persistent" allows the virtual disk to retain changes made to it across sessions, even when the virtual machine is powered off, while a "slave" mode indicates that the disk relies on its master disk for data. This operation is essential for scenarios where you want to have a virtual machine that retains unique data or changes independent of a master image or snapshot.

Modifying the disk capacity to a smaller size and changing the disk configuration mode from "Thin" to "Normal" may not be feasible due to the constraints of virtualization systems, which typically only allow increasing size rather than decreasing it. Additionally, changing the disk status between "Available" and "Unavailable" does not constitute a configuration or mode change but is about the disk's readiness for use, which does not impact the functional characteristics of the disk. These aspects clarify why the operation to change the disk mode to "independent-persistent" is correct in this context.