DB2 Version 10.1 for Linux, UNIX, and Windows
DB2 Version 10.1 for Linux, UNIX, and Windows
In addition to a few limitations, the directory structure of a non-root installation is slightly different than the directory structure of a root installation.
During a root installation, subdirectories and files for the DB2® database product are created in a directory of the root user's choosing.
Unlike root users, non-root users cannot choose where DB2 database products are installed. Non-root installations are always placed in the $HOME/sqllib directory, where $HOME represents the non-root user's home directory. The layout of the subdirectories within the sqllib directory of a non-root is similar to that of a root installation.
For root installations, multiple instances can be created. Instance ownership is associated with the user ID under which the instance was created.
Non-root installations can have only one DB2 instance. The non-root installation directory contains all of the DB2 database product files and instance files with no soft links.
| Criteria | Root installations | Non-root installations |
|---|---|---|
| User can select installation directory | Yes | No. DB2 database products are installed under the user's home directory. |
| Number of DB2 instances allowed | Multiple | One |
| Files deployed during installation | Program files only. Instances must be created after installation. | Program files and instance files. The DB2 database product is ready for use immediately after installation. |
| Upgrade version and instance | No | No need to uninstall the old version before installing the new version. Install new version, and upgrade the instance, together. |