2777986 - DB6: database connection failed with SQL1639N error

Symptom

The following SQL1639N error logged in trans.log file:

[ dev trc,00000] *** ERROR in DB6Connect[dbdb6.c, 2009] CON = 0 CACHEID = -1 (BEGIN)
[ dev trc,00000] DbSlConnectDB6( SQLConnect ): [IBM][CLI Driver] SQL1639N The database server was unable to perform authentication
[ dev trc,00000] because security-related database manager files on the server do not have the required operating system permissions. SQLSTATE=08001
[ dev trc,00000] *** ERROR in DB6Connect[dbdb6.c, 2009] (END)
[dbdb6.c ,00000] *** ERROR => DbSlConnect to <sid> as 'sap<sid>' failed, no connect possible: "DBMS = DB6 --- DB2DBDFT = '<sid>'"

Environment

SAP on IBM Db2 for Linux, UNIX, and Windows

Product

SAP ERP 6.0

Keywords

SQL1639N, permissions, ownership, security files , KBA , BC-DB-DB6 , DB2 Universal Database for Unix / NT , Problem

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