2841511 - IBM Db2 LUW (DB6) 1: ERROR:DB2EXTSEC: SQL5005C The operation failed because the database manager failed to access either the database manager configuration file or the database configuration file. (DB2<SID>)

• DB2-SERVER-WeekDay_Mon_DD_24_MM_SS YYYY.log
     . . .
        line 21620   Action 20:27:58: DB2CustomAction. Configuring DB2 instances
        line 21621   1: Configuring DB2 instances:.......Failure
        line 21622  Action 20:27:58: DB2CustomAction. Configuring DB2 extended security
        line 21623  1: ERROR:SQL1042C  An unexpected system error occurred.  SQLSTATE=58004
        line 21624  
        line 21625  
        line 21626   1: ERROR:DB2EXTSEC: SQL5005C  The operation failed because the database manager failed to access either the database manager configuration file or the database configuration file. (DB2<SID>)
     . . .
   
• D:\db2\db2<sid>\db2_software\BIN>db2level
            SQL1022C There is not enough memory available to process the command.

upgrade

       . . . from . . . IBM Db2 LUW 10.5       on MS WINDOWS
          Property(N): ProductName = DB2 Server Edition - SAPDB2<SID>
          Property(N): VersionString = 10.5
          Property(N): ProductVersion = 10.5.700.378

       . . . to . . . IBM Db2 LUW 11.1       on MS WINDOWS
          WriteRegistryValues: Key: \SOFTWARE\IBM\IBM Secure Shell Server, Name: Version, Value: 11.1.3031.370
          Property(S): ProductName = DB2 Server Edition - SAPDB2<SID>
          Property(S): VersionString = 11.1
          Property(S): ProductVersion = 11.1.3031.370

KBA , BC-DB-DB6 , DB2 Universal Database for Unix / NT , Problem