Queries the ID of a disk on the designated node. Applications use this control code as a parameter to ClusterResourceTypeControl function, and resource DLLs receive the control code as a parameter to the ResourceTypeControl callback function.

ClusterResourceTypeControl( hCluster,                                 // cluster handle
                            lpszResTypeName,                          // resource type name
                            hHostNode,                                // optional host node
                            CLUSCTL_RESOURCE_TYPE_STORAGE_GET_DISKID, // this control code
                            lpInBuffer,                               // input buffer: file path
                            cbInBufferSize,                           // input buffer size
                            lpOutBuffer,                              // output buffer: Disk ID
                            cbOutBufferSize,                          // allocated buffer size
                            lpcbBytesReturned );                      // size of returned data


The following control code function and DLL support parameters are specific to this control code. For complete parameter descriptions, see ClusterResourceTypeControl or ResourceTypeControl.


A null-terminated string representing the file path on the target disk.


Points to the disk id in the following format.

  • A 32-bit integer indicating ID type. Valid values for this field are 0x00000001 for MBR disks, 0x00000002 for GPT disks, and 0x00001388 for disks whose partition type is unknown.
  • A 32-bit integer if the preceding ID type is MBR or a 128-bitfield if the preceding ID type is GPT.

Return value

ClusterResourceTypeControl returns one of the following values.



The operation completed successfully.


234 (0xEA)

More data is available. The output buffer pointed to by lpOutBuffer was not large enough to hold the data resulting from the operation. The lpcbBytesReturned parameter points to the size required for the output buffer.

System error code

If any other value is returned, then the operation failed. The value of lpcbBytesReturned is unreliable.


ClusAPI.h defines the 32 bits of CLUSCTL_RESOURCE_TYPE_STORAGE_GET_DISKID (0x02000205) as follows.

Component Bit location Value
Object code 24 31 CLUS_OBJECT_RESOURCE_TYPE (0x2)
Global bit 23 CLUS_NOT_GLOBAL (0x0)
Modify bit 22 CLUS_NO_MODIFY (0x0)
User bit 21 CLCTL_CLUSTER_BASE (0x0)
Type bit 20 External (0x0)
Operation code 0 23 CLCTL_STORAGE_GET_DISKID (0x205)
Access code 0 1 CLUS_ACCESS_READ (0x1)

For more information, see Control Code Architecture.


Minimum supported client
None supported
Minimum supported server
Windows Server 2008 Datacenter, Windows Server 2008 Enterprise

See also

External Resource Type Control Codes