Root-cause Analysis

Below table lists the root-cause problem diagnosed and the impacted classes.

Table 1. Root-cause problems for vIMS classes

Class	Root Cause	Event (symptoms) of root cause	Impacted System
VirtualMachine	Down	ServiceAffected	VIMSApplicationService
		VNFDown ServiceAffected	CallSessionControlFunction XMLDocumentManagmentServer HSSMirrorFunction
	PoweredOff	ServiceAffected	VIMSApplicationService
		VNFDown ServiceAffected	CallSessionControlFunction XMLDocumentManagmentServer HSSMirrorFunction
Hypervisor	Down	DownOrImpaired	VirtualMachines
		ServiceAffected	VIMSApplicationService
		VNFDown ServiceAffected	CallSessionControlFunction XMLDocumentManagmentServer HSSMirrorFunction
		ReducedRedundancy AllComponentsDown AtRisk	VIMSApplicationServicesGroup CallSessionControlFunctionsGroup HSSMirrorFunctionGroup XMLDocumentManagmentServerGroup
Host	Down	Unresponsive	Host
		PowerOff	Hypervisor
		HostLostConnection	Hypervisor
		DownOrImpaired	VirtualMachines
		ServiceAffected	VIMSApplicationService
		VNFDown ServiceAffected	CallSessionControlFunction XMLDocumentManagmentServer HSSMirrorFunction
		ReducedRedundancy AllComponentsDown AtRisk	VIMSApplicationServicesGroup CallSessionControlFunctionsGroup HSSMirrorFunctionGroup XMLDocumentManagmentServerGroup