Signature Property for Physical Disks

The Signature property specifies the signature for the Physical Disk resource.

Quick Info

Type: DWORD
Access: Read/write
Status: Required only if the Drive property is not provided
Function: ClusterResourceControl
Structure: CLUSPROP_DWORD
Control Code: CLUSCTL_RESOURCE_GET_PRIVATE_PROPERTIES

Remarks

The Signature property specifies a globally unique identifier for the disk regardless of the machine. When ClusterResourceControl processes the CLUSCTL_RESOURCE_GET_PRIVATE_PROPERTIES control code, it returns a property list that includes the Signature property as one of the entries. The property value portion of the entry contains a CLUSPROP_DWORD structure that is set as follows:

DWORD SignatureData = 12343;
CLUSPROP_DWORD SignatureValue;
SignatureValue.Syntax = CLUSPROP_SYNTAX_LIST_VALUE_DWORD;
SignatureValue.cbLength = sizeof(DWORD);
SignatureValue.dw = SignatureData;

QuickInfo

  Version: Use Windows NT Server Enterprise Edition 4.0.
  Windows CE: Unsupported.
  Header: Declared in clusapi.h.