title: Should a C-MOVE success message only be received after the associated C-STORE completes?
body: <p>We have a client issuing a C-MOVE request to a PACS server.  My understanding is that the secondary association will be opened and the C-STORE operations completed prior to the C-MOVE association being closed and a status of success being returned.</p>
  
  <p>With one particular PACS we are receiving the C-MOVE successful completion status after only about have the C-STORE sub-operations have actually occurred.  The status of the success message indicates they have all occurred.  </p>
  
  <pre><code>(0000,0002) UI =Study Root Query/Retrieve Information Model - MOVE #   28 Affected SOP Class UID 1
  (0000,0100) US 32801                                    #    2 Command Field 1
  (0000,0120) US 1                                        #    2 Message ID Being Responded To 1
  (0000,0800) US 257                                      #    2 Data Set Type 1
  (0000,0900) US 0                                        #    2 Status 1
  (0000,0902) LO (no value available)                     #    0 Error Comment 1
  (0000,1020) US (no value available)                     #    0 Number of Remaining Sub-operations 1
  (0000,1021) US 248                                      #    2 Number of Completed Sub-operations 1
  (0000,1022) US 0                                        #    2 Number of Failed Sub-operations 1
  (0000,1023) US 0                                        #    2 Number of Warning Sub-operations 1
  </code></pre>
  
  <p>The remaining C-STORE operations do complete, just after we have received this status.</p>
  
  <p>From my understanding of Part 7 of the DICOM standard we should not be receiving a C-MOVE response with a successful status until all the C-STORE sub operations have actually completed.  Am I interpreting this correctly and is this PACS not following the standard?</p>
  
  <p>If this is normal, how does the C-MOVE requestor know when the transfer has completed successfully?</p>