[SPDK] Re: PMEM over RDMA (RPMEM) Support Status in SPDK

Hi Joe,

I can give you a little on PMEM in general, will let someone else jump in with any NVMeoF stuff... Today SPDK uses PMDK to support PMEM in two major ways:

- we can expose a pmem region as a bdev through the block device module for pmem
- our compression bdev uses pmem behind the scenes to track metadata for compressed data stored on other media

Thx
Paul


On 3/2/20, 3:28 PM, "Gruher, Joseph R" <joseph.r.gruher(a)intel.com> wrote:

    I'm just curious about the support for PMEM over RDMA Ethernet in SPDK.  I assume it will be similar functionally to NVMe/NVMeoF, but for PMEM... eventually.
    
    I was wondering if you can point me to a website, whitepaper, or person where I could get a general sense of SPDK support for PMEM, both implemented as of today, and future roadmap/schedule.
    
    I'd love to test it out in my lab when it is mature enough for that to be a reasonable thing to attempt, as I am fairly well equipped with RDMA capable NICs and with PMEM equipped systems, and experienced with using SPDK with NVMe/NVMeoF, but I'd like to wait until it is reasonably mature, so trying to get a sense of where we are today, and when might be a reasonable target date to try and engage with some basic testing / proof-of-concept type work.
    
    Thanks,
    Joe Gruher
    
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