SCVMM 2012 Sp1 service crashes

SCVMM 2012 sp1 installed on a HA cluster and the service in the cluster is failing with the below event.

Below is the error that i am seeing in the VMM events

========================

Log Name:      VM Manager
Source:        Virtual Machine Manager
Date:          6/1/2015 3:41:07 AM
Event ID:      1
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      TEVMMCLD02P.hq.target.com
Description:
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
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Virtual Machine Manager" />
    <EventID Qualifiers="0">1</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2015-06-01T08:41:07.000000000Z" />
    <EventRecordID>1558932</EventRecordID>
    <Channel>VM Manager</Channel>
    <Computer>TEVMMCLD02P.hq.target.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>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&amp; rootPath)
   at Microsoft.VirtualManager.Engine.Deployment.SANStorageManagementHelper.GetLUNIDFromFSPath(WsmanAPIWrapper wsmanWrapper, String FileSystemPath, StorageDeviceIdentifier&amp; storageIdentifier, String&amp; VolumeRootPath, Boolean&amp; IsiSCSILUN, String&amp; DiskDeviceID, String&amp; DiskUniqueID)
   at Microsoft.VirtualManager.Engine.Deployment.SANAcceleratorHelper.MapFSPathToLun(WsmanAPIWrapper sourceWrapper, String fspath, String&amp; root, StorageDeviceIdentifier&amp; lunID, Boolean&amp; isIsciLun, String&amp; diskAddress, String&amp; 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&amp; vmFilesToLunInfoList, WSManConnectionParameters hostConnectionParameters)
   at Microsoft.VirtualManager.Engine.Deployment.VMLUNMappingReader.GetVMLUNInformationFromRealWord(List`1&amp; lunInfoList, WSManConnectionParameters hostConnectionParameters)
   at Microsoft.VirtualManager.Engine.Deployment.VMLUNMappingReader.GetVMSANConfigurationFromRealWorld(WSManConnectionParameters hostConnectionParameter)
   at Microsoft.VirtualManager.Engine.Deployment.VMLUNMappingReader.HasVMLUNInformationChanged(VMSANConfiguration&amp; 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.&lt;&gt;c__DisplayClassc.&lt;RunFullRefresher&gt;b__a(Object paramObj)
   at Microsoft.VirtualManager.Utils.Multithreading.ThrottledThreadPool.&lt;&gt;c__DisplayClass3.&lt;ScheduleNextThread&gt;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</Data>