Microsoft KB Archive/183240

= Master and backup Host Account databases not in sync =

Article ID: 183240

Article Last Modified on 4/29/2005

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APPLIES TO


 * Microsoft SNA Server 3.0 Service Pack 4
 * Microsoft SNA Server 4.0
 * Microsoft SNA Server 3.0 Service Pack 2
 * Microsoft SNA Server 4.0

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This article was previously published under Q183240



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

Keywords: kbbug kbfix KB183240

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