I have a requirement where I need to transfer 1000s of files(around 200 GB) via IICS. How can I perform this using IICS?
The files are stored in a server that does not run a secure agent which makes it complicated
Sure it's possible, the module to be used exactly for this purpose is Mass Ingestion. This is not a scenario for CDI.
You don't need a Secure Agent on either source or target server. What you need instead, is the connections on the Secure Agent to the source and target servers, then you define the job - and that's it.