If you want volumes that can be dynamically attached to any machine, you're not buying a SAN, and you're not in a cloud provider with a portable block storage a

If you want volumes that can be dynamically attached to any machine, you're not buying a SAN, and you're not in a cloud provider with a portable block storage abstraction, what do you propose? About the only thing I can think of is Ceph, and it stands to reason there is a lot more NFS than Ceph expertise on the job market.