Recent advances in hardware technologies raise new opportunities for architecting storage
systems to exploit emerging NVRAM memory devices, fast remote-memory RDMA
networking, and large numbers of processor cores. In this paper, we present Telepathy, a
novel data access protocol for a distributed key-value storage system constructed around
NVRAM and RDMA. Telepathy supports replicated data storage for fault tolerance and
guarantees strong consistency while supporting high-volume concurrent read/write access …

• Replace traditional socket-based channel with two-sided RDMA operations➢ Examples:
Ceph [2], RDMA-based memcached [9], RDMA-based HDFS [10], FaSST [11] and Hotpot
[12]• Modify the lower-level communication mechanisms and related APIs➢ Examples:
FaRM [13], Octopus [14], Derecho [15]➢ Redesign communication channels o Use one-
sided RDMA pull for reads o Use one-sided RDMA push for writes