CA ERwin Model Manager Implementation Guide

How to Prepare Your DBMS EnvironmentTasks to Create a Microsoft SQL Server DBMSThe following tasks must be performed by the DBA and system administratorresponsible for installing CA ERwin MM on a Microsoft SQL Server DBMS:1. Use a graphical user interface (GUI) tool, ISQL (all versions), SQLAdministrator, or Enterprise Manager to create the CA ERwin MM database.If a GUI tool is not available, you can use ISQL to type in the appropriatecommands manually.Your database should meet the following criteria:■■■■The initial size of the database file should be set to 60 MB.The initial size of the transaction log file should be set to 50 MB.Set the maximum file size to unrestricted file growth for both files(recommended, but not required).Increase the Set Auto grow file by 10 percent (recommended, but notrequired).The new database is owned by the user who created it.Set the Truncate Log on Checkpoint option and have the server generatecheckpoints frequently. By selecting this option, the log is emptiedperiodically and should not fill up and cause rollbacks.Note: For best performance ensure that separate devices are used to storethe data and the transaction log.2. Add users.For users to access the mart you must either add existing logins as usersto the database or create new logins and add them as users of thedatabase. A login is an entity permitted to connect to the database server;a user gives a login the right to use a particular database. If you useWindows user names and passwords to secure database access (WindowsAuthentication), you must add the Windows users to your DBMS.3. Check tempdb size.Microsoft SQL Server ConnectionsSignificant temporary space is required for installation and use. Thetemporary segments need at least 16 MB of available space. You shouldalso increase available space as the number of concurrent users increase.If you are using a Microsoft SQL Server as your host DBMS, CA ERwin MM usesDB_LIBRARY to connect.18 Implementation Guide