DB2 Configuration Pertemuan 2 Matakuliah: T0413 Tahun: 2009

Bina Nusantara University 3 DB2 Configuration

Bina Nusantara University 4 Review configuration file –get dbm cfg Update configuration file –update dbm cfg using –Eg: update dbm cfg using INTRA_PARALLEL YES Some parameters are dynamically changed, others need a db2stop/db2start Database Manager Configuration file (dbm cfg)

Bina Nusantara University 5 Control Center > (expand) Instances folder > (right-click) Instance > Configure Parameters DBM CFG from the Control Center

Bina Nusantara University 6 DB2 Configuration

Bina Nusantara University 7 Review configuration file –get db cfg for or –get db cfg (If already connected to a db) Update configuration file –update db cfg for using –Eg: update db cfg for sample using CHNGPGS_THRESH 30 Some parameters are dynamically changed, others need to “stop” and “start” a database Database Configuration file (db cfg)

Bina Nusantara University 8 Control Center > (expand) All Databases folder > (right-click) Database > Configure Parameters DB CFG – From the Control Center

Bina Nusantara University 9 DB2 Configuration

Bina Nusantara University 10 list all currently set variables db2set db2set –all db2set –lr db2set = Eg: db2set db2comm=tcpip  A place to specify environment or platform specific settings e.g. settings for RAID, optimizer paths not yet fully integrated, communication protocols, environment specific performance enhancements  Settings can be applied to various levels  environment  instance  global (all instances) list variables set for instance list all available variables for platform sets a variable The DB2 Registry

Bina Nusantara University 11 DB2COMM –Specifies the communication managers that are started when the database manager is started. DB2_EXTSECURITY –On Windows, prevents unauthorized access to DB2 by locking DB2 system files Example of DB2 Registry variables