Dell System ID --> WMI Property?

[Tim_Fettig at Dell.com]

Ian,
Michael is absolutely correct, the only safe place to find the Dell
Service Tag information is within the SMBIOS structure and libSMBIOS is
THE tool to use to get it.

There is an un-official method in WMI to "try" to find the Service Tag
on Dell PowerEdge Server Products (not applicable to Desktops). You can
query the Win32_BIOS via WSQL and collect the SerialNumber column
(string). If the system is newer (W2K3) and the MotherBoard has not been
replaced this is a reasonably reliable method to attempt inventory
control via shell scripting. As is the case with WMI data population,
this value is not 100% accurate. Better to script a call to dumpSMBIOS
to be sure.

In the case of a Dell Service call, where you will need your Service
Tag, you will be asked to use the Dell System Support Tool (DSET
http://www.support.dell.com/dset) which, will obtain your Service Tag
information from SMBIOS using libSMBIOS as the source authority.

Good luck with you efforts to support Dell Products.

Thanks,
Tim Fettig
-----Original Message-----
From: libsmbios-devel-bounces at lists.us.dell.com
[mailto:libsmbios-devel-bounces at lists.us.dell.com] On Behalf Of Michael
E Brown
Sent: Wednesday, October 31, 2007 1:36 AM
To: Anderson, Ian
Cc: libsmbios-devel at lists.us.dell.com
Subject: Re: Dell System ID --> WMI Property?

On Wed, Oct 17, 2007 at 08:33:10AM -0400, Anderson, Ian wrote:
> Hello,
> 
>     With regards to
> http://linux.dell.com/wiki/index.php/Oss/Firmware_Tools/bugs, is there

> a WMI property that corresponds to the Dell System ID?  We have an 
> inventory system that can query arbitrary WMI properties and, last 
> time I checked, we had 73 models of Dell computers in our
organization.

No. The Dell System ID is stored in a fixed offset in the BIOS memory
map, not in the DMI/SMBIOS table.

See libraries/systeminf/IdByte.cpp for info...
--
Michael
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