This problem has bothered us so much since we installed the last 1 or 2 update rolls. I was not able to find any relevant info online after digging for hours. The forum is my last hope now so any suggestion would be very much appreciated.
We are currently on 3.1.6018.0, with all the updates for SP1 installed. Every time we start the VMM console, we have to keep our fingers crossed, very likely it will crash and we have to restart the VMM service. Then we would be fine for a while until later someone starts a new VMM console session.
The errors logged every time: 2 identical event 1(I found it interesting to have identical errors from the same source to be logged twice), and event 19999
Event 19999:
Error1/12/2015 11:29:54 AMVirtual Machine Manager 19999None
Virtual Machine Manager (vmmservice:19340) has encountered an error and needed to exit the process. Windows generated an error report with the following parameters:Event:VMM20
P1(appName):vmmservice
P2(appVersion):3.1.6018.0
P3(assemblyName):Engine.Deployment
P4(assemblyVer):3.1.6018.0
P5(methodName):M.V.E.D.SANStorageManagementHelper.FindVolumeForGivenFileSystemPath
P6(exceptionType):System.NullReferenceException
P7(callstackHash):ad2a
.
Event 1
Error1/12/2015 11:29:54 AMVirtual Machine Manager 1None
System.NullReferenceException: Object reference not set to an instance of an object.at Microsoft.VirtualManager.Engine.Deployment.SANStorageManagementHelper.FindVolumeForGivenFileSystemPath(WsmanAPIWrapper wsmanWrapper, String inputFilePath, StorageManagementHelper storageManagementHelper, String& rootPath)
at Microsoft.VirtualManager.Engine.Deployment.SANStorageManagementHelper.GetLUNIDFromFSPath(WsmanAPIWrapper wsmanWrapper, String FileSystemPath, StorageDeviceIdentifier& storageIdentifier, String& VolumeRootPath, Boolean& IsiSCSILUN, String& DiskDeviceID, String& DiskUniqueID)
at Microsoft.VirtualManager.Engine.Deployment.SANAcceleratorHelper.MapFSPathToLun(WsmanAPIWrapper sourceWrapper, String fspath, String& root, StorageDeviceIdentifier& lunID, Boolean& isIsciLun, String& diskAddress, String& diskUniqueID)
at Microsoft.VirtualManager.Engine.Deployment.VMLUNMappingReader.MapFileOrDiskToLUN(WsmanAPIWrapper sourceWrapper, List`1 vmFilesToLunInfoList, Object physicalItemOrDiskOrPath, Boolean hypervVM, VMFilesToLunInfo hypervConfigLun)
at Microsoft.VirtualManager.Engine.Deployment.VMLUNMappingReader.MapVMFilesToLUN(List`1& vmFilesToLunInfoList, WSManConnectionParameters hostConnectionParameters)
at Microsoft.VirtualManager.Engine.Deployment.VMLUNMappingReader.GetVMLUNInformationFromRealWord(List`1& lunInfoList, WSManConnectionParameters hostConnectionParameters)
at Microsoft.VirtualManager.Engine.Deployment.VMLUNMappingReader.GetVMSANConfigurationFromRealWorld(WSManConnectionParameters hostConnectionParameter)
at Microsoft.VirtualManager.Engine.Deployment.VMLUNMappingReader.HasVMLUNInformationChanged(VMSANConfiguration& sanConfig, WSManConnectionParameters hostConnectionParameter)
at Microsoft.VirtualManager.Engine.BitBos.VMRefresherBase.UpdateVMLUNInformation()
at Microsoft.VirtualManager.Engine.BitBos.VMRefresherBase.UpdateFullVMObjectToCarmine(IVMComputerSystem vmComputer, VMData vmData, UpdateRequired updateRequired, Boolean vmObjectHasChanged)
at Microsoft.VirtualManager.Engine.BitBos.VMRefresherBase.FullyRefreshVM(FullyResheshVMParamObject param)
at Microsoft.VirtualManager.Engine.BitBos.VMRefresherBase.<>c__DisplayClassc.<RunFullRefresher>b__a(Object paramObj)
at Microsoft.VirtualManager.Utils.Multithreading.ThrottledThreadPool.<>c__DisplayClass3.<ScheduleNextThread>b__2(Object dummy)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()-2147467261