DOCUMENT:Q276470 12-JUN-2001 [sna] TITLE :Dynamically Defined LUs Show Pending Status After PU Recycled PRODUCT :Microsoft SNA Server PROD/VER::3.0 (all SP),4.0,4.0 SP1,4.0 SP2,4.0 SP3 OPER/SYS: KEYWORDS:kbDSupport kbsna300sp1 kbsna300sp2 kbsna300sp3 kbsna300sp4 sna4 kbsna400sp1 kbsna400sp2 ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft SNA Server, versions 3.0 SP1, 3.0 SP2, 3.0 SP3, 3.0 SP4, 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3 ------------------------------------------------------------------------------- SYMPTOMS ======== SNA Server may fail to dynamically activate a logical unit (LU), through the host Dynamic Definition of Dependent LUs (DDDLUs), after the physical unit (PU) on the mainframe has been recycled. The result is that the LUs that are defined on this host connection may show a "pending" status when viewed in SNA Server Manager after an application tries to connect to the LUs. The application that is trying to reconnect to the LU at this point cannot get an active session to the host. The same problem may occur when the host connection is stopped and restarted through SNA Server Manager. CAUSE ===== The SNA Server service doesn't check whether the LU-System Services Control Point (SSCP) session is down before it tries to send the Network Management Vector Table (NMVT) request to deactivate the session when an application disconnects. This results in the SNA Server not sending an NMVT request to activate the LU when an application tries to reconnect to an available LU. NOTE: The LU will be available again once the PU is activated on the host or the connection is restarted on SNA Server. RESOLUTION ========== To resolve this problem, obtain the latest service pack for SNA Server 4.0. For additional information, please see the following article in the Microsoft Knowledge Base: Q215838 How to Obtain the Latest SNA Server Version 4.0 Service Pack STATUS ====== Microsoft has confirmed this to be a problem in Microsoft SNA Server versions 3.0 (all Service Packs), 4.0, 4.0 SP1, 4.0 SP2, 4.0 SP3. This problem was first corrected in SNA Server 4.0 Service Pack 4. MORE INFORMATION ================ For additional information about SNA Server and DDDLUs, click the article numbers below to view the articles in the Microsoft Knowledge Base: Q161492 INFO: LU Session Activation Using Dynamically Defined Dependent LUs Q164592 Dynamically Defined Dependent LU Support for LUA LUs Q276453 Dynamically Defined Dependent LU Support for Printer LUs Additional query words: Snaservr sp1 sp2 sp3 service pack sp ====================================================================== Keywords : kbDSupport kbsna300sp1 kbsna300sp2 kbsna300sp3 kbsna300sp4 sna4 kbsna400sp1 kbsna400sp2 kbsna400sp3 kbSNA400sp4fix kbSNA400PreSP4fix Technology : kbAudDeveloper kbSNAServSearch kbSNAServ400 kbSNAServ300SP3 kbSNAServ300SP1 kbSNAServ400SP1 kbSNAServ400SP2 kbSNAServ400SP3 kbSNAServ300SP2 kbSNAServ300SP4 Version : :3.0 (all SP),4.0,4.0 SP1,4.0 SP2,4.0 SP3 Issue type : kbbug Solution Type : kbfix ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.