KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q121385: SMS Program Group Controller and AutoDisconnect

Article: Q121385
Product(s): Microsoft Systems Management Server
Version(s): winnt:1.0,1.1
Operating System(s): 
Keyword(s): kbnetwork kbPGC smspgc
Last Modified: 30-JUL-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Systems Management Server versions 1.0, 1.1 
-------------------------------------------------------------------------------

SUMMARY
=======

Windows NT and LAN Manager servers default to 15 minutes of idle time per
connection before marking the connection as available for AutoDisconnect. This
behavior is intended to keep system resources available, and assumes that
clients will transparently reconnect when the client application accesses the
server. Sometimes this AutoDisconnect behavior can cause strange application
problems such as segment load failures or "drive not ready" errors.

When the Systems Management Server Program Group Controller (PGC) invokes
APPSTART to execute a shared application off a server, it opens the executable
file in read-only mode and keeps it open until the user exits the application
and PGC detects that the connection needs cleaned up.

MORE INFORMATION
================

This became a critical issue for shared applications under Systems Management
Server and this technique eliminates the need to disable AutoDisconnect for the
server, and lets PGC manage the connection. The Windows NT Server component
correctly maintains the connection for clients running an application through
PGC and APPSTART over all supported protocols.

If problems occur:

- Disable AutoDisconnect and run the application as usual from PGC.

-or-

- Run the application from the server, bypassing PGC controls (through File
  Manager).

If these steps fail to pinpoint the issue, the application may not be
network-aware and you should contact the vendor of the application.


Additional query words: directhosting sms prodsms

======================================================================
Keywords          : kbnetwork kbPGC smspgc 
Technology        : kbSMSSearch kbSMS100 kbSMS110
Version           : winnt:1.0,1.1

=============================================================================

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.