[Gluster-users] rdma or tcp?

[isdtor]

Is there a document with some guidelines for setting up bricks with
tcp or rdma transport?

I'm looking at a new deployment where the storage cluster hosts
connect via 10GigE, but clients are on 1GigE. Over time, there will be
10GigE clients, but the majority will remain on 1GigE. In this setup,
should the storage bricks use tcp or rdma?

If tcp is the better choice, and at some point in the future all
clients are 10GigE, should the bricks be rebuilt with rdma?

Are there any downsides to using rdma even in a purely 1GigE network?