Modifying a Database Engine

An engine definition provides detailed information about the backing database used by a cluster; only an EDB Ark administrative user can modify an engine definition. To modify a database engine, right-click on the name of the database engine, and select Properties… from the context menu, or highlight the engine’s name and select Properties… from the Object dialog.

_images/pem_ark_manage_database_engine_general.png

Use fields on the General tab to provide information about the engine:

  • Use the Name field to provide a user-friendly name for the engine.
  • The Engine ID field displays the unique identifier of the engine. The identifier cannot be modified after the engine definition is saved.
  • The Database Type field displays the database type (PostgreSQL or Advanced Server). The database type cannot be modified after the engine definition is saved.
  • The Version field displays the database server version of the engine. The version cannot be modified after the engine definition is saved.
  • Use the Server type drop-down listbox to select the backing operating system that will be used by the engine.
  • Set the Enabled slider to Yes to make the engine available for cluster provisioning; set the slider to No to disable the engine.
_images/pem_ark_manage_database_engine_software_packages.png

Use fields on the Software/Packages tab to provide information about the software that will be deployed on the engine:

  • If applicable, use the RHEL subscription drop-down listbox to select the RHEL subscription service that will be used when provisioning clusters that use the engine.
  • Use the Yum repo URL(s) field to provide the names and credentials associated with one or more yum repositories from which software will be installed.
  • Use the Required packages field to provide a list of the software packages that are required by the specified server.
  • Use the Optional packages field to provide a list of the additional software packages that will be installed on clusters that are provisioned using the engine.

After modifying the database engine click Save to preserve your changes.