EC2 c5.4xlarge is sufficient for relay node?

have a question, running relay node, recommend EC2 c5.4xlarge, but its storage is limited to ebs.but,EBS is not sufficient.

Sorry for the delay. EBS was the wrong general term - I meant specifically magnetic storage. Some cheaper storage types have slow response times and low throughput. io1 and larger gp2 should be sufficient. I can generally work with magnetic but we recommend SSD.