DB2 10.5 for Linux, UNIX, and Windows

Setting the DAS when running multiple DB2 copies

Starting with Version 9.1, you can have multiple DB2® copies running on the same computer. This affects how the DB2 Administration Server (DAS) operates.

About this task

The DAS is a unique component within the database manager that is limited to having only one version active, despite how many DB2 copies are installed on the same computer. For this reason, the following restrictions and functional requirements apply.

Restrictions

Important: The DB2 Administration Server (DAS) has been deprecated in Version 9.7 and might be removed in a future release. The DAS is not supported in DB2 pureScale® environments. Use software programs that use the Secure Shell protocol for remote administration. For more information, see DB2 administration server (DAS) has been deprecated .

On the server, there can be only one DAS version and it administers instances as follows:

If the DAS runs on Version 9.1 or Version 9.5, then it can administer Version 8, Version 9.1, or Version 9.5 instances.
If the DAS runs on Version 8, then it can administer only Version 8 instances. You can upgrade your Version 8 DAS, or drop it and create a new Version 9.5 DAS to administer the Version 8 or later instances.

Only one DAS can be created on a given computer at any given time despite the number of DB2 copies that are installed on the same computer. This DAS will be used by all the DB2 copies that are on the same computer. In Version 9.1 or later, the DAS can belong to any DB2 copy that is currently installed.

If the DAS is running in a Version 9.5 copy and you want it to run in another Version 9.5 copy, use the dasupdt command. If the DAS is running in a Version 8, Version 9.1, or Version 9.5 copy and you want it to run in a Version 9.7 copy, you cannot use dasupdt, use the dasmigr command to upgrade the DAS from to Version 9.7.

On Windows operating systems, you can also use the dasupdt command when you need to run the DAS in a new Default DB2 copy of the same version.

Procedure

To set up the DAS in one of the DB2 copies:

Choose one of the following actions:

If the DAS is not created, then create a DAS in one of the DB2 copies.
Use the dasupdt command only to update the DAS so that it runs in another DB2 copy of the same release.
Use the dasmigr command to upgrade from Version 8, Version 9.1, or Version 9.5 to Version 9.7 DAS.