DOCUMENT:Q183240  02-APR-2000  [sna]
TITLE   :Master and Backup Host Account Databases Not in Sync
PRODUCT :Microsoft SNA Server
PROD/VER:WINDOWS:3.0,3.0 SP1,3.0 SP2,4.0
OPER/SYS:
KEYWORDS:kbbuglist

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The information in this article applies to:

 - Microsoft SNA Server, versions 3.0, 3.0 SP1, 3.0 SP2, 4.0 
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SYMPTOMS
========

If there are multiple SNA Server Host Account Cache databases configured for use
within a Windows NT domain, there may be times when one or more of the backup
Host Account Cache databases are not in sync with the master database. SNA users
or applications (or both) that are configured to use host security integration
features such as single sign-on and host account synchronization may fail to get
host sessions if one of the out-of-sync backup Host Account databases is
accessed for account mapping or synchronization.

Typical errors that result when this occurs indicate invalid user IDs or
passwords or both. These errors will be returned by the application or
applications (for example, 3270 emulator or APPC/CPIC program) being used.

CAUSE
=====

When a new user account (that did not exist previously in the Windows NT Account
database) is added to the Host Account Cache database, the master Host Account
Cache database sends an update request to all backup Host Account Cache
databases. The backup databases add the same user account to their copy of the
database. This add fails because the backup databases cannot locate the user
account in the Windows NT account database.


WORKAROUND
==========

To work around this problem, you can synchronize the Windows NT Backup Domain
Controller (where the backup Host Account Cache databases are running) with the
Windows NT Primary Domain Controller.

STATUS
======

Microsoft has confirmed this to be a problem in SNA Server versions 3.0, 3.0
SP1, 3.0 SP2, and 4.0.

This problem was corrected in the latest SNA Server versions 3.0 and 4.0 U.S.
Service Packs. For information on obtaining these Service Packs, query on the
following word in the Microsoft Knowledge Base (without the spaces):

   S E R V P A C K


Additional query words:

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Keywords          :  kbbuglist
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ300 kbSNAServ400 kbSNAServ300SP1 kbSNAServ300SP2
Version           : WINDOWS:3.0,3.0 SP1,3.0 SP2,4.0
Issue type        : kbbug
Solution Type     : kbfix

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