<div class="content"><p>The <b>CprepDiskPRRelease</b> method performs a <a href="b30bcd1c-8ff6-46d2-a27e-61bd85ace9f4#gt_c8818c63-7458-4054-a17d-bea04fa50618" data-linktype="relative-path">SCSI</a> PERSISTENT RESERVE OUT
command (see <a href="https://go.microsoft.com/fwlink/?LinkId=90528" data-linktype="external">[SPC-3]</a>
section 6.12) with a RELEASE action.</p><dl>
<dd>
<div><pre> HRESULT CprepDiskPRRelease(
   [in] CPREP_DISKID DiskId
 );
</pre></div>
</dd></dl><p><b>DiskId: </b>The identifier of the <b>ClusPrepDisk</b>
representing the disk.</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.
Zero or positive values indicate success, with the lower 16 bits in positive
nonzero values containing warnings or flags defined in the method
implementation. For more information about Win32 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>0x80070002</p>
  <p>ERROR_FILE_NOT_FOUND</p>
  </td>
  <td>
  <p>The disk was not found.</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
  equal to 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 RPC protocol <a href="../ms-rpce/290c38b1-92fe-4229-91e6-4fc376610c15" data-linktype="relative-path">[MS-RPCE]</a>.</p><p>The opnum field value for this method is 28.</p><p>When processing this call, the server MUST do the following:</p><ul><li><p><span><span> 
</span></span>Obtain the <b>ClusPrepDisk</b> identified by the <i>DiskId</i>
parameter as specified 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>Issue a PERSISTENT RESERVE OUT command with a RELEASE action as
specified in [SPC-3] section 6.12.</p>
</li></ul></div>