Hello,   I'm not sure if this is it, but others have had issues after a recent MS patch en.community.dell.com/.../19622033 Synopsis: we have a SC VMM 2012 R2 on 2012 R2 running. I setup the SMP WMI Provider functionality and it was running fine for some months. Last weekend we patched the SC VMM with the latest Windows updates and with the UR5 for VMM. Now the VMM says "Not responding" all the time. Resolution:  • There is a hotfix for CU5 that fixed the issue for me. The expection report included: --------------------- System.ArgumentNullException: Value cannot be null. --------------------- support.microsoft.com/.../3039296 It says something about a fix for "ArgumentNullException". It says something about a replication service, but I tried it and it worked for me. Have you also contacted MS? 
Hi, I'm having a problem adding a Dell EqualLogic PS4110XS SAN to our VMM 2012 R2 installation. I've installed the latest HIT tools (v4.7.1)  on the hosts and VMM server, but when I try and add the Provider through the 'Add Devices' option in the console or I use the PowerShell Import-SCStorageProvider cmdlet I get the following crash ----------------------------------------------------------------------- Error Report -----------------------------------------------------------------------Error report created 19/03/2015 11:51:06CLR is not terminating ------------------------------------------------------------------- Bucketing Parameters -------------------------------------------------------------------EventType=VMM20P1(appName)=vmmservice.exeP2(appVersion)=3.2.7895.0P3(assemblyName)=Microsoft.Management.Infrastructure.dllP4(assemblyVer)=6.3.9600.16384P5(methodName)=Microsoft.Management.Infrastructure.Options.CimOperationOptions.SetCustomOptionP6(exceptionType)=System.ArgumentNullExceptionP7(callstackHash)=cb0b SCVMM Version=3.2.7895.0SCVMM flavor=C-buddy-RTL-AMD64Default Assembly Version=3.2.7895.0Executable Name=vmmservice.exeExecutable Version=3.2.7895.0Base Exception Target Site=140721159097264Base Exception Assembly name=Microsoft.Management.Infrastructure.dllBase Exception Method Name=Microsoft.Management.Infrastructure.Options.CimOperationOptions.SetCustomOptionException Message=Value cannot be null.Parameter name: optionValueEIP=0x00007ffc434f8b9cBuild bit-size=64 ---------------------------------------------------------------- exceptionObject.ToString() ----------------------------------------------------------------System.ArgumentNullException: Value cannot be null.Parameter name: optionValue   at Microsoft.Management.Infrastructure.Options.CimOperationOptions.SetCustomOption(String optionName, Object optionValue, CimType cimType, Boolean mustComply)   at Microsoft.EnterpriseManagement.DataCenterManager.StorageUtil.PassThroughBase..ctor(String server, String provUser, SecureString provPassword)   at Microsoft.EnterpriseManagement.DataCenterManager.StorageUtil.SMISPassThroughService..ctor(String server, String provUser, SecureString provPassword)   at Microsoft.EnterpriseManagement.DataCenterManager.StorageUtil.ReplicationPassThroughService..ctor(String server, String provUser, SecureString provPassword)   at Microsoft.EnterpriseManagement.DataCenterManager.StorageUtil.SCXArray.GetReplicationPTService()   at Microsoft.EnterpriseManagement.DataCenterManager.StorageUtil.SCXArray.GetReplicationService(Boolean throwOnNull)   at Microsoft.VirtualManager.Engine.ImageLibrary.StrgArray.RefreshReplicationCapabilities(SCXArray scxArray)   at Microsoft.VirtualManager.Engine.ImageLibrary.StrgArray.Refresh(SCXStorageService scxService, StrgProvider provider, DiscoveryLevel discoveryLevel, String autoMgmtPoolId, StrgClassification autoMgmtPoolClassification, Boolean refreshReplicationCapabilities, Boolean useCachedArray)   at Microsoft.VirtualManager.Engine.ImageLibrary.StrgProvider.Refresh(SCXStorageService scxService, DiscoveryLevel discoveryLevel, Boolean useCachedArray)   at Microsoft.VirtualManager.Engine.Deployment.ImportStorageProviderSubtask.RunSubtask()   at Microsoft.VirtualManager.Engine.TaskRepository.SubtaskBase.Run()   at Microsoft.VirtualManager.Engine.TaskRepository.Task`1.SubtaskRun(Object state) ------------------------------------------------------------------- exception.StackTrace -------------------------------------------------------------------at Microsoft.Management.Infrastructure.Options.CimOperationOptions.SetCustomOption(String optionName, Object optionValue, CimType cimType, Boolean mustComply)   at Microsoft.EnterpriseManagement.DataCenterManager.StorageUtil.PassThroughBase..ctor(String server, String provUser, SecureString provPassword)   at Microsoft.EnterpriseManagement.DataCenterManager.StorageUtil.SMISPassThroughService..ctor(String server, String provUser, SecureString provPassword)   at Microsoft.EnterpriseManagement.DataCenterManager.StorageUtil.ReplicationPassThroughService..ctor(String server, String provUser, SecureString provPassword)   at Microsoft.EnterpriseManagement.DataCenterManager.StorageUtil.SCXArray.GetReplicationPTService()   at Microsoft.EnterpriseManagement.DataCenterManager.StorageUtil.SCXArray.GetReplicationService(Boolean throwOnNull)   at Microsoft.VirtualManager.Engine.ImageLibrary.StrgArray.RefreshReplicationCapabilities(SCXArray scxArray)   at Microsoft.VirtualManager.Engine.ImageLibrary.StrgArray.Refresh(SCXStorageService scxService, StrgProvider provider, DiscoveryLevel discoveryLevel, String autoMgmtPoolId, StrgClassification autoMgmtPoolClassification, Boolean refreshReplicationCapabilities, Boolean useCachedArray)   at Microsoft.VirtualManager.Engine.ImageLibrary.StrgProvider.Refresh(SCXStorageService scxService, DiscoveryLevel discoveryLevel, Boolean useCachedArray)   at Microsoft.VirtualManager.Engine.Deployment.ImportStorageProviderSubtask.RunSubtask()   at Microsoft.VirtualManager.Engine.TaskRepository.SubtaskBase.Run()   at Microsoft.VirtualManager.Engine.TaskRepository.Task`1.SubtaskRun(Object state) ----------------------------------------------------------------- StackTrace from handler ------------------------------------------------------------------This is the call stack from where the exception was caught, not where it was thrown.at Microsoft.VirtualManager.Utils.Diagnostics.WatsonReport.WriteReportTextFile(TextWriter reportFile)   at Microsoft.VirtualManager.Utils.Diagnostics.WatsonReport.Send()   at Microsoft.VirtualManager.Utils.Diagnostics.WatsonExceptionReport.Send()   at Microsoft.VirtualManager.Utils.Diagnostics.WatsonCenter.ReportException(Exception e, WERReportOptions options, String& localReportPath)   at Microsoft.VirtualManager.Engine.TaskRepository.Task`1.SubtaskRun(Object state)   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() I've tried uninstalling/re-installing the EqualLogic provider but it still crashes. Any ideas? Thanks, Mark. 
VMM Crash trying to add EqualLogic SMP storage provider