-i オプションでディスク情報が確認できる。

# smartctl -i /dev/sdb
smartctl 5.42 2011-10-20 r3458 [x86_64-linux-2.6.18-409.el5xen] (local build)
Copyright (C) 2002-11 by Bruce Allen, http://smartmontools.sourceforge.net

=== START OF INFORMATION SECTION ===
Model Family:     Western Digital RE4 Serial ATA
Device Model:     WDC WD5003ABYX-01WERA0
Serial Number:    WD-WMAYP0921850
LU WWN Device Id: 5 0014ee 05801bc57
Firmware Version: 01.01S01
User Capacity:    500,107,862,016 bytes [500 GB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   8
ATA Standard is:  Exact ATA specification draft version not indicated
Local Time is:    Fri May 26 16:50:46 2017 JST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled