<div class="content" name="VDS_WWN" uuid="6dfec320-4e19-49f1-a18a-d6b2a73a9939"><p>The VDS_WWN structure defines a worldwide name (WWN). This
structure corresponds to the HBA_WWN structure, as specified in <a href="https://go.microsoft.com/fwlink/?LinkId=89878" data-linktype="external">[HBAAPI]</a>, which also
defines the WWN term.<a id="Appendix_A_Target_37"></a><a aria-label="Product behavior note 37" href="6b2552ee-ba27-409f-99a8-18841573327a#Appendix_A_37" data-linktype="relative-path">&lt;37&gt;</a></p><dl>
<dd>
<div><pre> typedef struct _VDS_WWN {
   unsigned char rguchWwn[8];
 } VDS_WWN;
</pre></div>
</dd></dl><p><b>rguchWwn:</b>  An array of 8 bytes that
specifies the 64-bit WWN value. The first element of the array is the most
significant byte of the WWN, and the most significant bit of that byte is the
most significant bit of the WWN.</p></div>