Using Linux nvme-cli to connect to the NVMStack’s NVMe-oF targets


To using Linux NVMe over Fabrics client, need Linux with kernel 4.08 and above.

Install the nvme-cli package on the client machine:

#yum install nvme-cli

or on Debian:

#apt-get install nvme-cli

Startup Kernel Module

#modprobe nvme-rdma

Discover NVMe-oF subsystems

nvme discover -t rdma -a -s 4420
Discovery Log Number of Records 1, Generation counter 1

=====Discovery Log Entry 0======

trtype: rdma

adrfam: ipv4

subtype: nvme subsystem

treq: not specified

portid: 1

trsvcid: 4420


rdma_prtype: not specified

rdma_qptype: connected

rdma_cms: rdma-cm

rdma_pkey: 0x0000

Connect to NVMe-oF subsystems

nvme connect -t rdma -n -a -s 4420

List nvme device info:

#nvme list
Node SN Model Namespace Usage Format FW Rev
---------------- -------------------- ---------------------------------------- --------- -------------------------- ---------------- --------
/dev/nvme0n1 NVMStack Controller 160.11 GB / 160.11 GB 512 B + 0 B A348BB834CD3544

Disconnect NVMe-oF subsystems

In order to disconnect from the target run the nvme disconnect command:

#nvme disconnect -d /dev/nvme0n1