Which storage type should I use for Elasticsearch?

I'm installing elasticsearch and needs 2 TB storage for shipping from filesystem log files using beats and logstash. What is the proper storage type as per our required design (frequent writes, many nodes and less read) :
• eNAS
• SAN
• or ODF

Let me rephrase the question: is it recommended to have one shared storage for all Elasticsearch nodes or having a private storage for each node of the cluster?

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