Error 13 from ResourceControl for resource Disk Drive while adding cluster disk

Hi,

I have a drive mounted at C:\mountpoint\Kdrive. C:\ is not a cluster disk. I am trying to use Cluster API to add this disk to the cluster but it fails with the following errors:-

00000928.00000ce8::2016/03/10-04:59:51.637 INFO  [RCM] rcm::RcmApi::CreateResource: (SQL Server (MSSQLSERVER), Disk Drive C:\mountpoint\KDrive\, 8836dfef-fa51-419d-960f-75965fed6cfd, Physical Disk)
00000928.00000ce8::2016/03/10-04:59:51.637 INFO  [RCM] rcm::RcmGum::CreateResource(Disk Drive C:\mountpoint\KDrive\,8836dfef-fa51-419d-960f-75965fed6cfd,SQL Server (MSSQLSERVER))
00000304.00000554::2016/03/10-04:59:51.678 ERR   [RES] Physical Disk <Disk Drive C:\mountpoint\KDrive\>: Open: Unable to get disk identifier. Error: 5023.
00000928.00000dc8::2016/03/10-04:59:51.678 INFO  [RCM] HandleMonitorReply: OPENRESOURCE for 'Disk Drive C:\mountpoint\KDrive\', gen(0) result 0.
00000304.00000554::2016/03/10-05:00:12.208 ERR   [RHS] Error 13 from ResourceControl for resource Disk Drive C:\mountpoint\KDrive\.
00000928.00000ce8::2016/03/10-05:00:12.208 WARN  [RCM] ResourceControl(SET_PRIVATE_PROPERTIES) to Disk Drive C:\mountpoint\KDrive\ returned 13

I tried with various syntax for the Disk Drive path (with single \ and double \\) but nothing works. If I execute the same code with path like K:\ it works fine.

Code snippet:

try
 {
  // Create the resource.  The resource name is "Disk Drive @:"
  // where @ is the drive letter of a disk partition.
  bstr_t bstr;
  UTIL_Utf8ToWideChar (szDiskPath.data(), bstr);
  int length = bstr.length ();
  lpstrDiskPathW = new WCHAR[length + 1];
  wcsncpy (lpstrDiskPathW, (const wchar_t*)bstr, length);
  lpstrDiskPathW[length] = L'\0';

  String strResName = "Disk Drive " + szDiskPath;
  UTIL_Utf8ToWideChar(strResName.data(), bstr);
  length = bstr.length ();
  lpstrResourceNameW = new WCHAR[length + 1];
  wcsncpy (lpstrResourceNameW, (const wchar_t*)bstr, length);
  lpstrResourceNameW[length] = L'\0';

  hResource = m_funcCreateClusterResource(hClusterGroup,
   (LPCWSTR)lpstrResourceNameW,
   L"Physical Disk",
   0);

  if( hResource == NULL )
  {
   m_log.error("CreateDiskResource: failed to create disk resource %s", strResName);
   throw -1;
  }
  else
  {
   m_log.info("CreateDiskResource: created disk resource %s", strResName);
  }

  // Set the diskpath private property
  // Begin property list used to set the DiskPath private property.
  WCHAR szPropName[] = CLUSREG_NAME_PHYSDISK_DISKPATH;

  typedef struct _DiskPathControl
  {
   DWORD dwPropCount;
   CLUSPROP_PROPERTY_NAME_DECLARE(PropName,sizeof(szPropName)/sizeof(WCHAR));
   CLUSPROP_SZ_DECLARE(DiskPathValue, sizeof(lpstrDiskPathW)/sizeof(WCHAR));
   CLUSPROP_SYNTAX Endmark;
  } DiskPathControl;

  DiskPathControl DPC;

  //  Property Count
  DPC.dwPropCount = 1;

  //  Property Name
  DPC.PropName.Syntax.dw  = CLUSPROP_SYNTAX_NAME;
  DPC.PropName.cbLength   = sizeof( szPropName );
  wcsncpy (DPC.PropName.sz, (const wchar_t*)szPropName, DPC.PropName.cbLength);

  //  Property Value
  DPC.DiskPathValue.Syntax.dw = CLUSPROP_SYNTAX_LIST_VALUE_SZ;
  DPC.DiskPathValue.cbLength  = sizeof( lpstrDiskPathW );
  wcsncpy (DPC.DiskPathValue.sz, (const wchar_t*)lpstrDiskPathW, DPC.DiskPathValue.cbLength);

  //  Endmark
  DPC.Endmark.dw = CLUSPROP_SYNTAX_ENDMARK;

  DWORD cbSize = sizeof( DiskPathControl );

  //  End property list creation

  // Set the diskpath private property
  dwRC = m_funcClusterResourceControl( hResource,
   NULL,
   CLUSCTL_RESOURCE_SET_PRIVATE_PROPERTIES,
   ( void* ) &DPC,
   cbSize,
   NULL,
   0,
   NULL );

  if( dwRC != ERROR_SUCCESS )
  {
   String err(dwRC);
   m_log.error("AA_ClusterBase:: CreateDiskResource: failed to set the DiskPath property, error %s", err);
   m_funcDeleteClusterResource( hResource );
   m_funcCloseClusterResource( hResource );
   hResource = NULL;
   throw -1;
  }
 }
 catch (...)
 {
 }

Is there a know limitation with the Cluster API for not supporting disks mounted on mountpoints?

BTW this works fine:

C:\>cluster res “Disk W:\Mount” /priv DiskPath=”W:\Mount”

Thanks,

Aditya