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Date: Sun, 11 Nov 2007 18:38:08 -0500
From: "Josh Carroll" <josh.carroll@gmail.com>
To: "Jonathan Horne" <freebsd@dfwlp.com>
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References: <200711111727.55766.freebsd@dfwlp.com>
Cc: freebsd-questions@freebsd.org
Subject: Re: disk drive serial number
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> is there a way to get the serial number from a drive from within the OS?  im
> trying to audit the drives in my file server, but without pulling the thing
> from the rack and cracking it open.  they are just standard sata drives, not
> on any sort of raid controller (ie, i know 3ware cards are capable of pulling
> the drive info).

Check dmesg (or /var/run/dmesg.boot). The serial number should show, e.g.:

ad8: 381553MB <Seagate ST3400633AS 3.AAH> at ata4-master SATA150

Thanks,
Josh