Running the setup script
The setup script provides the following stand‑alone and cluster installation options:

Stand‑alone

Set up iHub to use the out‑of‑the‑box (OOTB) PostgreSQL database.
Sets up iHub and an embedded out‑of‑the‑box (OOTB) PostgreSQL database for storing iHub system and Encyclopedia volume metadata.

Set up iHub to use an alternative database.
Sets up iHub and an external database, such as DB2, Microsoft SQL Server, Oracle, or a pre-existing PostgreSQL database, for storing iHub system and Encyclopedia volume metadata. Requires superuser or database system administrator access to the external database.

Set up iHub only.
Sets up only the iHub program files. This option requires logging into Configuration Console after installing iHub to set up a connection to the database used for storing iHub system and Encyclopedia volume metadata. Requires the database administrator to run SQL Data Definition Language (DDL) scripts to create a database and the following schema owner and application user accounts with appropriate privileges:

iHub system schema owner

Encyclopedia volume schema owner

iserver application user

Cluster

Set up iHub to join an existing cluster.
Sets up an iHub node on an existing cluster to add more capacity. The setup prompts the administrator for the location of the shared configuration files.