Error message when creating the SQL Server MDB database: ERROR 18456 Severity 14 State 16 Login failed for user SA.


Article ID: 52359


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CA Capacity Manager CA MICS Resource Management CA Distributed Database Management CA Database Analyzer for DB2 for Oracle



When installing the CA Database Command Center and the MDB, installation fails on the creation of the MDB database with an error message. The cause is that the OS disallows short path names. The solution provides two options.


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The installation problem is caused by a hardening of the OS in regards disallowing short path names (8.3 format for example: Progra~1). This causes a problem with the default path names during the product installation.
You can do either of the following:

  1. Shorten the path names to their 8 character equivalents for folder names prior to installation.
    Example: Progra~1 instead of Program Files

  2. Enter the registry and switch on the use of short path names:

  3. Change the value to the default from 1 to 0.


Component: UNIDCC