Fast and Consistent Remote Direct Access to Non-volatile Memory
Jingwen Du, Fang Wang, Dan Feng, Weiguang Li, Fan Li · 2021
For performance benefits, recent trends of modern data centers tend to use NVM (Non-volatile Memory) as storage and utilize one-sided primitives of RDMA (Remote Direct Memory Access) to directly access NVM for I/O requests. However, one-sided RDMA doesn’t have durability semantics currently, and data may partially exist in the NVM when crashes happen, thus causing unexpected data inconsistency.