I understand the concept of a file system UUID. Is there a manufacturer unique identifier on a hard drive, apart from the file system UUID, and how do I read that identifier?
2 Answers
If you open the Disk Utility application (default in Ubuntu) you get all the information regarding the disks in your computer.
Edit: command line output:
xxx@xxx$ sudo hdparm -i /dev/sda | grep Model
Model=SAMSUNG HD753LJ, FwRev=1AA01113, SerialNo=S13UJDWQ907130
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How do I query this information in a bash script? Specifically the serial number and world wide name?– HendréOct 14, 2012 at 20:43
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If you look in the folder /sys/block/sd?/device
where the ?
is a
, b
, etc you should find the files vendor
and model
which should enable you to identify the manufacturer.
For example, on one of my systems:
# cat /sys/block/sda/device/vendor
ATA
# cat /sys/block/sda/device/model
ST9500325AS
# cat /sys/block/sdd/device/vendor
Samsung
# cat /sys/block/sdd/device/model
M2 Portable
Note that, due to the connection and age of some of my drives, hdparm -i
does not always work.
# hdparm -i /dev/sda
/dev/sda:
Model=ST9500325AS, FwRev=0001SDM1, SerialNo=5VE30D69
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=unknown, BuffSize=8192kB, MaxMultSect=16, MultSect=16
CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=976773168
IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120}
PIO modes: pio0 pio1 pio2 pio3 pio4
DMA modes: mdma0 mdma1 mdma2
UDMA modes: udma0 udma1 udma2 udma3 udma4 udma5 *udma6
AdvancedPM=yes: unknown setting WriteCache=enabled
Drive conforms to: unknown: ATA/ATAPI-4,5,6,7
* signifies the current active mode
# hdparm -i /dev/sdd
/dev/sdd:
HDIO_GET_IDENTITY failed: Invalid argument