Adding new raw data, requesting suggestions

Additionally, I have 3 servers capable of holding 10TB each. How do I ingest and distribute? i am referencing Important Elasticsearch configuration | Elasticsearch Guide [8.17] | Elastic

It seems distributed file systems are not favored at least in ES 7.5 Why NFS is to be avoided for data directories - Elastic Stack / Elasticsearch - Discuss the Elastic Stack

setting multiple data.paths | Elasticsearch Guide [8.17] | Elastic