1NVME-LIST-SUBSYS(1) NVMe Manual NVME-LIST-SUBSYS(1)
2
6 nvme-list-subsys - List all NVMe subsystems
7
9 nvme list-subsys [-o <fmt> | --output-format=<fmt>] <device>
10
12 Scan the sysfs tree for NVM Express subsystems and return the
13 controllers for those subsystems as well as some pertinent information
14 about them. If a device is given, print out only the values for the
15 controllers and subsystems leading to the device.
16
18 -o <format>, --output-format=<format>
19 Set the reporting format to normal or json. Only one output format
20 can be used at a time.
21
23 root@host[1]# nvme list-subsys
24 nvme-subsys0 - NQN=nvmf-test
25 \
26 +- nvme0 rdma traddr=1.1.1.3 trsvcid=4420 host_traddr=1.1.1.1
27 +- nvme1 rdma traddr=1.1.1.3 trsvcid=4420 host_traddr=1.1.1.2
28 nvme-subsys1 - NQN=nvmf-test2
29 \
30 +- nvme2 rdma traddr=1.1.1.3 trsvcid=4420 host_traddr=1.1.1.2
31 +- nvme3 rdma traddr=1.1.1.3 trsvcid=4420 host_traddr=1.1.1.1
32 root@host[1]# nvme list-subsys -o json
34 {
35 "Subsystems" : [
36 {
37 "Name" : "nvme-subsys0",
38 "NQN" : "nvmf-test"
39 },
40 {
41 "Paths" : [
42 {
43 "Name" : "nvme0",
44 "Transport" : "rdma",
45 "Address" : "traddr=1.1.1.3 trsvcid=4420 host_traddr=1.1.1.1"
46 },
47 {
48 "Name" : "nvme1",
49 "Transport" : "rdma",
50 "Address" : "traddr=1.1.1.3 trsvcid=4420 host_traddr=1.1.1.2"
51 }
52 ]
53 },
54 {
55 "Name" : "nvme-subsys1",
56 "NQN" : "nvmf-test2"
57 },
58 {
59 "Paths" : [
60 {
61 "Name" : "nvme2",
62 "Transport" : "rdma",
63 "Address" : "traddr=1.1.1.3 trsvcid=4420 host_traddr=1.1.1.2"
64 },
65 {
66 "Name" : "nvme3",
67 "Transport" : "rdma",
68 "Address" : "traddr=1.1.1.3 trsvcid=4420 host_traddr=1.1.1.1"
69 }
70 ]
71 }
72 ]
73 }
74
76 Part of the nvme-user suite
77
79 1. root@host
80 mailto:root@host
81NVMe 01/08/2019 NVME-LIST-SUBSYS(1)