<div class="content"><p>The CprepDiskIsPRPresent3 method queries the <a href="b30bcd1c-8ff6-46d2-a27e-61bd85ace9f4#gt_c8818c63-7458-4054-a17d-bea04fa50618" data-linktype="relative-path">SCSI</a> Persistent Reserve
reservation table for the disk and determines if the specified key is listed in
the table.</p><dl>
<dd>
<div><pre> HRESULT CprepDiskIsPRPresent3(
   [in] CPREP_DISKID DiskId,
   [in] ULONGLONG Key
 );
</pre></div>
</dd></dl><p><b>DiskId: </b>The identifier of the <a href="fd583e19-b6a1-43d0-a77e-0ea7836626e4" data-linktype="relative-path">ClusPrepDisk</a> representing
the disk.</p><p><b>Key: </b>The reservation key to search for in the
SCSI Persistent Reserve reservation table for the <a href="b30bcd1c-8ff6-46d2-a27e-61bd85ace9f4#gt_7593b869-71a9-4a02-bab3-377e51729067" data-linktype="relative-path">LUN</a> underlying the
operating system disk identified by the <i>DiskId</i> parameter.</p><p><b>Return Values: </b>A signed 32-bit value that
indicates return status. If the method returns a negative value, it has failed.
Non-negative values indicate success, with the lower 16 bits of the value
containing warnings or flags defined in the method implementation. For more
information about <b>Win32</b> error codes and <a href="../ms-dtyp/a9046ed2-bfb2-4d56-a719-2824afce59ac" data-linktype="relative-path">HRESULT</a>
values, see <a href="../ms-erref/1bc92ddf-b79e-413c-bbaa-99a5281a6c90" data-linktype="relative-path">[MS-ERREF]</a>
sections <a href="../ms-erref/18d8fbe8-a967-4f1c-ae50-99ca8e491d2d" data-linktype="relative-path">2.2</a>
and <a href="../ms-erref/0642cb2f-2075-4469-918c-4441e69c548a" data-linktype="relative-path">2.1</a>.</p><dl>
<dd>
<table><thead>
  <tr>
   <th>
   <p>Return value/code</p>
   </th>
   <th>
   <p>Description</p>
   </th>
  </tr>
 </thead><tbody><tr>
  <td>
  <p>0x00000000</p>
  <p>S_OK</p>
  </td>
  <td>
  <p>The call was successful.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x80070490</p>
  <p>ERROR_NOT_FOUND</p>
  </td>
  <td>
  <p>The key was not found in the reservation table.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x80070002</p>
  <p>ERROR_FILE_NOT_FOUND</p>
  </td>
  <td>
  <p>The disk was not found.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x00000057</p>
  <p>ERROR_INVALID_PARAMETER</p>
  </td>
  <td>
  <p>An internal error occurred.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x80070548</p>
  <p>ERROR_INVALID_SERVER_STATE</p>
  </td>
  <td>
  <p>The server&#39;s <b>Prepare State</b> is not Online.</p>
  </td>
 </tr><tr>
  <td>
  <p>0x8007139F</p>
  <p>ERROR_INVALID_STATE</p>
  </td>
  <td>
  <p>The value of <b>ClusPrepDisk.AttachedState</b> is not
  Attached.</p>
  </td>
 </tr></tbody></table>
</dd>
<dd>
<p>For any other condition, this method MUST return a
value that is not one of the values listed in the preceding table. The client
MUST behave in one consistent, identical manner for all values that are not
listed in the preceding table. </p>
</dd></dl><p>Exceptions Thrown: No exceptions are thrown beyond those
thrown by the underlying <a href="b30bcd1c-8ff6-46d2-a27e-61bd85ace9f4#gt_8a7f6700-8311-45bc-af10-82e10accd331" data-linktype="relative-path">RPC</a>
protocol (see <a href="../ms-rpce/290c38b1-92fe-4229-91e6-4fc376610c15" data-linktype="relative-path">[MS-RPCE]</a>).</p><p>The <a href="b30bcd1c-8ff6-46d2-a27e-61bd85ace9f4#gt_e127848e-c66d-427d-b3aa-9f904fa4ada7" data-linktype="relative-path">opnum</a>
field value for this method is 15.</p><p>When processing this call, the server MUST do the following:</p><ul><li><p><span><span> 
</span></span>Obtain the ClusPrepDisk identified by the DiskId parameter, as
described in section <a href="c17ce220-d244-45c9-95c0-4c31942253ee" data-linktype="relative-path">3.2.4</a>.</p>
</li><li><p><span><span> 
</span></span>Search the SCSI Persistent Reserve reservation table as specified
in <a href="https://go.microsoft.com/fwlink/?LinkId=90528" data-linktype="external">[SPC-3]</a> section
6.12.</p>
</li></ul></div>