nvme-list-subsys

NVME-LIST-SUBSYS(1) NVMe Manual NVME-LIST-SUBSYS(1)

NAME

   nvme-list-subsys - List all NVMe subsystems

SYNOPSIS

   nvme list-subsys <device> [--output-format=<fmt> | -o <fmt>] [--verbose | -v]

DESCRIPTION

   Scan the sysfs tree for NVM Express subsystems and return the controllers for those subsystems as well as some pertinent information about them. If a device is given, print out only
   the values for the controllers and subsystems leading to the device.

OPTIONS

   -o <fmt>, --output-format=<fmt>
       Set the reporting format to normal, json or binary. Only one output format can be used at a time.

   -v, --verbose
       Increase the information detail in the output.

EXAMPLES

       root@host[1]# nvme list-subsys
       nvme-subsys0 - NQN=nvmf-test
       \
        +- nvme0 rdma traddr=1.1.1.3,trsvcid=4420,host_traddr=1.1.1.1
        +- nvme1 rdma traddr=1.1.1.3,trsvcid=4420,host_traddr=1.1.1.2
       nvme-subsys1 - NQN=nvmf-test2
       \
        +- nvme2 rdma traddr=1.1.1.3,trsvcid=4420,host_traddr=1.1.1.2
        +- nvme3 rdma traddr=1.1.1.3,trsvcid=4420,host_traddr=1.1.1.1

       root@host[1]# nvme list-subsys -o json
       {
         "Subsystems" : [
           {
             "Name" : "nvme-subsys0",
             "NQN" : "nvmf-test"
           },
           {
             "Paths" : [
               {
                 "Name" : "nvme0",
                 "Transport" : "rdma",
                 "Address" : "traddr=1.1.1.3,trsvcid=4420,host_traddr=1.1.1.1"
               },
               {
                 "Name" : "nvme1",
                 "Transport" : "rdma",
                 "Address" : "traddr=1.1.1.3,trsvcid=4420,host_traddr=1.1.1.2"
               }
             ]
           },
           {
             "Name" : "nvme-subsys1",
             "NQN" : "nvmf-test2"
           },
           {
             "Paths" : [
               {
                 "Name" : "nvme2",
                 "Transport" : "rdma",
                 "Address" : "traddr=1.1.1.3,trsvcid=4420,host_traddr=1.1.1.2"
               },
               {
                 "Name" : "nvme3",
                 "Transport" : "rdma",
                 "Address" : "traddr=1.1.1.3,trsvcid=4420,host_traddr=1.1.1.1"
               }
             ]
           }
         ]
       }

NVME

   Part of the nvme-user suite

NOTES

    1. root@host
       mailto:root@host

NVMe 05/02/2025 NVME-LIST-SUBSYS(1)