SAP Host Agent Installation
In many cases SAP Host Agent is installed automatically. However, there are certain cases when you have to install it manually.
SAP Host Agent is installed automatically during the installation of all new SAP system instances or instances with SAP kernel 7.20 or higher.
In high availability (HA) environments, SAP recommends installing the SAP Host Agent locally on every cluster node (host), because the installation procedure places the SAP Host Agent files into the SAP system-independent directory path /usr/sap/hostctrl. Make sure that this path is a local file system on every host of a high availability environment. Installing the SAP Host Agent into a clustered file system is not supported.
The following sections describe how you can install SAP Host Agent separately: