Re: [t13] Serial # of an ATA drive

Fri, 04 Apr 2003 18:15:32 -0800

Title: Serial # of an ATA drive
All,
 
In looking back through the minutes on this I noticed in August 2002 (e02134r0 section 7.5.9) Curtis Stevens asked that this be made manditory.  The proposal adopted wasn't very clear other than it provided for supported and not supported bits which I guess indicates optional. ATAPI-7 clearly states it is optional (d1532r2 Vol 1 section 6.16.59).  Did we loose something,  the feature doesn't make sense if it is optional does it?
 
gkl
 
----- Original Message -----
Sent: Friday, April 04, 2003 3:08 PM
Subject: Re: [t13] Serial # of an ATA drive

Gana,
 
    The proposal I mentioned (e02136r1) was adopted as part of ATAPI-7 at the Oct 2002 meetings.  Funny I seconded the motion but couldn't remember if it passed....
 
gary laatsch
 
----- Original Message -----
Sent: Friday, April 04, 2003 1:39 PM
Subject: [t13] Serial # of an ATA drive

Hi folks,

Can someone here tell me if the serial # string returned by the IDENTIFY DEVICE command of a drive will be unique for one particular drive ?

The reason why I am asking is that the verbiage in the ATA spec 7.0 says,


6.16.17 Words (19:10): Serial number
This field contains the serial number of the device. The contents of this field is an ASCII character string of
twenty bytes. The device shall pad the character string with spaces (20h), if necessary, to ensure that the
string is the proper length. The combination of Serial number (words (19:10)) and Model number (words (46:27))
shall be unique for a given manufacturer.

Any insight on this one would be very useful.

Thanks,
Gana

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