nvm_dev

NVM Device (nvm_dev_*) -- Ver { major(0), minor(1), patch(5) }

Retrieve device information

Usage:
 nvm_dev         enum  [-h]
 nvm_dev         info dev_path [-h] [-b]

Options:
 -h       Print usage
 -b       Brief, minimal output

See: http://lightnvm.io/liblightnvm/cli/ for usage examples

Tip

See section Environment Variables for a full list of environment variables modifying command behavior

Retrieve device information

Retrieve device information from the Open-Channel SSD at the path /dev/nvme0n1

nvm_dev info /dev/nvme0n1

# Device information -- nvm_dev_pr
dev_attr:
  verid: 0x02
  be_id: 0x01
  be_name: 'NVM_BE_IOCTL'
  name: 'nvme0n1'
  path: '/dev/nvme0n1'
  fd: 3
  ssw: 12
  mccap: '00000000000000000000000000000001'
  bbts_cached: 0
  quirks: '00000000'
dev_geo:
  verid: 0x02
  npugrp: 8
  npunit: 4
  nchunk: 1474
  nsectr: 6144
  nbytes: 4096
  nbytes_oob: 16
  tbytes: 1187021586432
  tmbytes: 1132032
dev_cmd_opts:
  mask: '00000000000000000000000011001000'
  iomd: 'SYNC'
  addr: 'VECTOR'
  plod: 'PRP'
dev_vblk_opts:
  pmode: 'SNGL'
  erase_naddrs_max: 64
  read_naddrs_max: 64
  write_naddrs_max: 64
  meta_mode: 0
dev_ppaf: ~
dev_ppaf_mask: ~
dev_lbaf:
  pugrp: 3
  punit: 2
  chunk: 11
  sectr: 13
dev_lbaz:
  pugrp: 26
  punit: 24
  chunk: 13
  sectr: 0
dev_lbam:
  pugrp:  '0000000000000000000000000000000000011100000000000000000000000000'
  punit:  '0000000000000000000000000000000000000011000000000000000000000000'
  chunk:  '0000000000000000000000000000000000000000111111111110000000000000'
  sectr:  '0000000000000000000000000000000000000000000000000001111111111111'