Comprehensive and Detailed Explanation (HCIA–Cloud Computing aligned):
Huawei FusionCompute High Availability (HA) is designed to improve service continuity by automatically responding to VM or host failures.
Option A is true. FusionCompute allows administrators to configure different HA policies for virtual machines based on service importance, which aligns with SLA-driven management principles.
Option C is true. One of the core functions of HA is automatic VM reboot when a virtual machine encounters a failure, ensuring rapid service recovery.
Option D is true. FusionCompute continuously monitors CNA host and VM status. If a CNA host fails, HA triggers VM migration or restart on another available host in the same cluster, minimizing downtime.
Option B is false. Even when using shared storage, HA does not guarantee zero data loss. HA focuses on service recovery, not data consistency. Data loss may still occur depending on application state and write operations at the time of failure.
Therefore, the false statement is B.
