The II_INSTALLATION parameter defines the Ingres instance ID (also known as an installation code). The instance ID is a two-character code that identifies a specific installation on a node, and allows all processes and images to be installed and shared successfully.

If you have more than one installation on the same node, each installation on that node must have a unique instance ID.

The first character of the installation code must be a letter; the second character can be a letter or numeral.

Default: II