These commands are run from the cli.
I would use the 'hdparm -I /dev/your_device' where 'your_device' can be either hda,hdb,hdc, hdd for ide device or sda,sdb,sdc,sdd for SCSI or SATA.
except from 'man hdparm';
-i Display the identification info that was obtained from the drive
at boot time, if available. This is a feature of modern IDE
drives, and may not be supported by older devices. The data
returned may or may not be current, depending on activity since
booting the system. However, the current multiple sector mode
count is always shown. For a more detailed interpretation of
the identification info, refer to AT Attachment Interface for
Disk Drives (ANSI ASC X3T9.2 working draft, revision 4a, April
-I Request identification info directly from the drive, which is
displayed in a new expanded format with considerably more detail
than with the older -i flag.
The 'i' option is used to get drive information that was at boot time with the 'I' getting the information from the drive.