Ceph

Hi everyone.

We are running our production environment with only NVME drives as we need low latency operation. I've configured the prediction module and smart monitoring to get information out, but sadly we don't get any NVME information. I did some digging in the code and might have found the problem.

  string vendor = get_device_vendor(devname);
  if (vendor.size()) {
    base["nvme_vendor"] = vendor;

Checking the output I found that it reported the vendor lvm even if the nvme disks are intel.

 "nvme_vendor": "lvm",

When we run the process in block_device_run_vendor_nvme to get extra information, it fails, telling us there is no lvm module for the nvme command.

  SubProcessTimed nvmecli(
    "sudo", SubProcess::CLOSE, SubProcess::PIPE, SubProcess::CLOSE,
    timeout);
  nvmecli.add_cmd_args(
    "nvme",
    vendor.c_str(),
    "smart-log-add",
    "--json",
    device.c_str(),
    NULL);