5.4. The Database Administration Server
Prior to Version 8 there was another type of instance called the Database Administration Server (DAS) instance. There could only be one such instance per database server, and its main purpose was to allow for remote graphical administration of your database. In Version 7, if you installed the DB2 Administration Client (which comes with the graphical tools) on your Windows 2000 laptop and wanted to connect to a database server in Japan using graphical tools, the database server in Japan had to have this instance created and running.
With Version 8, this instance was converted into a background process, thereby hiding some of the required administration from the user. Nonetheless, you will still find commands that only apply to the DAS. On Linux and UNIX, a DAS user still needs to be created. The DB2 profile registry variable DB2ADMINSERVER contains the value of the DAS user. Normally, it is set to DB2DAS00 on Windows and dasusr1 on Linux/UNIX.
NOTEDB2 Administration Server and Database Administration Server are used interchangeably to refer to the DAS process. |
5.4.1. The DAS Commands
Table 5.3 summarizes the most common commands for the DAS.
| Command | Explanation |
|---|---|
| db2admin start | Starts the DAS. |
| db2admin stop | Stops the DAS. |
| dascrt | Creates the DAS in Linux and UNIX. |
| dasdrop | Drops the DAS in Linux and UNIX. |
| db2admin create | Creates the DAS in Windows. |
| db2admin drop | Drops the DAS in Windows. |
| get admin cfg | Displays the DAS admin configuration file. |
| update admin cfg | Updates the DAS admin configuration file. |
| reset admin cfg | Resets the DAS admin configuration file to its default values. |