Use hard disk identification to quickly locate damaged hard disks in the array

                   After the disk array is finished, it is best to make a self-adhesive label for each hard disk and attach it to the hard disk. This way, you can quickly find the damaged hard disk and replace it when there is a problem with the hard disk, reducing downtime.

The label is made very simple. It is easy to print a beautiful hard disk logo with Brady's tls2200 and the appropriate label.

sda, sdb, sdc, sdd, hda, hdb, hdc, hdd

But how can you quickly know the number of each hard disk in the chassis?

We can Use the hdparm command to query the serial number of the hard disk. Then you can locate each hard disk according to the serial number marked on each hard disk.

The parameters for querying the serial number using hdparm are as follows:
#hdpatm -I /dev/sda
/dev/sda:
ATA device, with non-removable media
Model Number: ST3320620AS
Serial Number: 5QF0337C
Firmware Revision: 3.AAC
Standards:
Supported: 7 6 5 4
Likely used: 7
Configuration:
Logical Max current
cylinders 16383 16383
heads 16 16
sectors/track 63 63
--
CHS current addressable sectors: 16514064
LBA user addressable sectors: 268435455
LBA48 user Addressable sectors: 625142448
device size with M = 1024*1024: 305245 MBytes
device size with M = 1000*1000: 320072 MBytes (320 GB)