From owner-freebsd-hackers@FreeBSD.ORG  Sun May 13 15:18:41 2007
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From: Viktor Vasilev <viktor.vasilev@stud.tu-darmstadt.de>
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Date: Sun, 13 May 2007 16:57:37 +0200
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On Sunday 13 May 2007 15:59 Mohsen Pahlevanzadeh wrote:
> Dear all,
> I need to a code piece that it gets serial number of hdd.
> Please help me....

For an ATA disk you can use the IOCATAGPARM ioctl to get the information. 
See the attached C source for example. Be sure to have a look 
at /usr/src/sys/sys/ata.h for other relevant fields and sizes.


Cheers,
Vik

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