By default, the agents are configured to use the "Internal NOS" software download method which uses Microsoft shares in which case the agent maps a drive to it's Scalability Server's SDLIBRARY$ share and executes the install. If shares are disabled in the environment, the agent falls back to "NOSLESS" software delivery download where the package is compressed and sent to the agent. The package is then uncompressed on the agent and installed.
If you want to use the NOSLESS download method as the default download method explicitly, run the following command on the agent:
"sd_acmd.exe SetDownloadMethod NONE"
Note: The above command is case sensitive.
If you would like to change the download method on multiple agents, create a batch file with above command and deploy it to agents as a software delivery package.
To set back the download method to Internal-NOS, use the following command:
"sd_acmd.exe SetDownloadMethod NOS"