Vladislav, This is an area of active R&D You might be interested in the following (at ietf.org): Title : RDMA Durable Write Commit Authors : Tom Talpey Jim Pinkerton <> Filename : draft-talpey-rdma-commit-00.txt Pages : 24 Date : 2016-02-19 Regards, ‘Asgeir > On Mar 10, 2016, at 3:45 PM, Vladislav Bolkhovitin <vst@xxxxxxxx> wrote: > > Hello, > > I'm currently considering to use NVDIMM behind RDMA and wonder what is RDMA power > failure write atomicity? I mean, what is minimal size and alignment guaranteed to be > written atomically in face of power failure (or some other similar failure), i.e. > either written in full, or not written at all? > > For memory writes on Intel it is 8 bytes with 8 bytes alignment. Is there anything like > this for RDMA? Or different vendors/implementation have so different expectations and > promises, so you can not assume anything >1 byte? > > I can't find such info anywhere. > > Thanks, > Vlad > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html