NVME−LIST−SUBSYS - Online Linux Manual PageSection : 1
Updated : 02/01/2023
Source : NVMe
Note : NVMe Manual

NAMEnvme-list-subsys − List all NVMe subsystems

SYNOPSISnvme list−subsys [−o <fmt> | −−output−format=<fmt>] <device>

DESCRIPTIONScan 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 <format>, −−output−format=<format> Set the reporting format to normal or json​. Only one output format can be used at a time​.

EXAMPLESroot@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​.1root@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" } ] } ] }

NVMEPart of the nvme−user suite

NOTES 1. root@host ­mailto:root@host
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