Whether black boxes can be used to record VM logs and user behavior

Black boxes cannot be used to record VM logs and user behavior.
VM logs, user behavior, and operation records are generally recorded and managed by the upper-layer cloud management system.
A black box collects and stores running information about a physical machine (Domain0 and Xen) equipped with FusionCompute when the physical machine exits abnormally. The following OS-level information is involved:
(1) Kernel logs
(2) Screen output information from before the system exited
(3) Diagnosis information from the diagnosis tool (kernel module)

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