Hacker News Reader

It's not NFS, it's a block storage mechanism. NFS presents a file-based interface, EBS is a block/device-based interface. The underlying implementation isn't widely publicized, but if you think about how a block device works on a Unix and the AWS bigger-is-faster model for non-PIOPS EBS, you can probably draw some reasonable inferences.

PIOPS?

Provisioned/guaranteed IOPS.

EBS is some kind of Network Block Device. NFS is another product, https://aws.amazon.com/efs/

IIRC EBS is based on GNBD.

Such rumors have been around for quite a while -- Amazon is not talking -- but their relevant patent https://www.google.com/patents/US8769186 has

> For example, in at least some embodiments, a representative logical local block data storage device may be made available to an executing program via use of GNBD (“Global Network Block Device”) technology.