Want to fine the find the band name or serial number of the hard disk in Linux sever ?           You just need one package called  hdparm which can be installed using below command

#yum -y install hdparm                                                                                                                  To check hard disk specification run below command

# hdparm -I /dev/sda

Below is the result shown
/dev/sda:

ATA device, with non-removable media
Model Number:       ST1000DM003-9YN162
Serial Number:      S1D55TYB
Firmware Revision:  CC4H
Transport:          Serial, SATA Rev 3.0