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