If I have four SATA 6 Gbps SSDs, what's faster?

[alpha754293]

If I have four SATA 6 Gbps SSDs, what's faster:

Option 1: Put all four SSDs into a stripped zpool using ZFS on Linux/CentOS, on a head node, and exporting that ZFS pool over NFS over RDMA?

Option 2: Put all four SSDs into a stripped RAID array using XFS, on a head node, and exporting that RAID array over NFS over RDMA?

Option 3: Put one SSD into each of my compute nodes (four nodes in total), and format that as either ZFS or XFS (or ext4), and then use GlusterFS over RDMA?

I am looking for maximum usable capacity and speed.

Thank you.

[aks]

Well measure your particular use cases!
I/O patterns are quite different for say a few large files versus lots of small files.
Anyway NFS is probably the problem ("NFS is ALWAYS the proble,m" - TM - you heard it here first )