[Linux 學習心得] Ubuntu Linux 下查詢M.2 SSD 硬體資訊

這幾天在處理公司的Server 時，發現原先使用 hdparm 可以查到硬碟相關資訊，在M.2 SSD 上是查不到任何資訊的。會出現如下訊息:

# hdparm -I /dev/nvme0 | more 
nvme0      nvme0n1    nvme0n1p1  nvme0n1p2  nvme0n1p3  
# hdparm -I /dev/nvme0 | more 
 HDIO_DRIVE_CMD(identify) failed: Inappropriate ioctl for device
/dev/nvme0:
# hdparm -I /dev/nvme0n1 | more 
 HDIO_DRIVE_CMD(identify) failed: Inappropriate ioctl for device
/dev/nvme0n1:
# hdparm -I /dev/nvme0n1p1 | more 
 HDIO_DRIVE_CMD(identify) failed: Inappropriate ioctl for device
/dev/nvme0n1p1:

在 mSATA SSD 是可以的

root@ceph-node1:/dev# hdparm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
        Model Number:       KINGSTON SHSS37A240G                    
        Serial Number:      50026B725A02FA7E    
        Firmware Revision:  SAFM001B
        Transport:          Serial, ATA8-AST, SATA 1.0a, SATA II Extensions, SATA Rev 2.5, SATA Rev 2.6, SATA Rev 3.0
Standards:
        Supported: 9 8 7 6 5 
        Likely used: 9
Configuration:
        Logical         max     current
        cylinders       16383   16383
        heads           16      16
        sectors/track   63      63
.....
.....

後來發現可以使用 lsblk 這個指令來達到我們要的目的。可以用以下指令:

lsblk -o NAME,FSTYPE,LABEL,MOUNTPOINT,SIZE,MODEL,SERIAL,STATE,VENDOR

順便將其他欄位也列出:

Available columns (for --output):
        NAME  device name
       KNAME  internal kernel device name
     MAJ:MIN  major:minor device number
      FSTYPE  filesystem type
  MOUNTPOINT  where the device is mounted
       LABEL  filesystem LABEL
        UUID  filesystem UUID
    PARTTYPE  partition type UUID
   PARTLABEL  partition LABEL
    PARTUUID  partition UUID
   PARTFLAGS  partition flags
          RA  read-ahead of the device
          RO  read-only device
          RM  removable device
     HOTPLUG  removable or hotplug device (usb, pcmcia, ...)
       MODEL  device identifier
      SERIAL  disk serial number
        SIZE  size of the device
       STATE  state of the device
       OWNER  user name
       GROUP  group name
        MODE  device node permissions
   ALIGNMENT  alignment offset
      MIN-IO  minimum I/O size
      OPT-IO  optimal I/O size
     PHY-SEC  physical sector size
     LOG-SEC  logical sector size
        ROTA  rotational device
       SCHED  I/O scheduler name
     RQ-SIZE  request queue size
        TYPE  device type
    DISC-ALN  discard alignment offset
   DISC-GRAN  discard granularity
    DISC-MAX  discard max bytes
   DISC-ZERO  discard zeroes data
       WSAME  write same max bytes
         WWN  unique storage identifier
        RAND  adds randomness
      PKNAME  internal parent kernel device name
        HCTL  Host:Channel:Target:Lun for SCSI
        TRAN  device transport type
  SUBSYSTEMS  de-duplicated chain of subsystems
         REV  device revision
      VENDOR  device vendor

有關於 M.2 SSD 資訊可以參考以下連結:

https://www.kingston.com/tw/ssd/ssd-faq