Mine was to the point, too.

Nice and to the point

Nice and to the point

Nice and to the point

Someone take a look at guru I think he's suffering with stiction.

S

Here is the fields of ATA ID command buffer used by HDDScan


Word 21 - cache

pNode.Attributes['Name'] :='Cache size';
if IDEID.RETIRED_21<>0 then
pNode.Attributes['Value'] := IntToStr(IDEID.RETIRED_21 div 2)+' KB'
else pNode.Attributes['Value'] := 'Not Reported';


Word 168 - form factor

pNode := iNode.AddChild('Main');
pNode.Attributes['Name'] :='Nominal Form factor';
case (IDEID.DEVICE_FORM_FACTOR_168 and $F) of
0: pNode.Attributes['Value'] := 'Not Reported';
1: pNode.Attributes['Value'] := '5.25"';
2: pNode.Attributes['Value'] := '3.25"';
3: pNode.Attributes['Value'] := '2.5"';
4: pNode.Attributes['Value'] := '1.8"';
5: pNode.Attributes['Value'] := '<1.8"';
else pNode.Attributes['Value'] := 'Not Reported';
end;

Word 217 - RPM

pNode := iNode.AddChild('Main');
pNode.Attributes['Name'] :='RPM';
case (IDEID.RPM_217) of
//0: pNode.Attributes['Value'] := 'Not Reported';
1: pNode.Attributes['Value'] := 'Solid State Media';
$401..$FFFF:pNode.Attributes['Value'] := IntToStr(IDEID.RPM_217);
else pNode.Attributes['Value'] := 'Not Reported';
end;

I want to get RPM for SSD drives :mrgreen:

As is already explained by Doomer's code, the ATA standard does distinguish between SSDs and HDDs. See Table 37 in section 7.16.7.77 of the following document:Working Draft AT Attachment 8 - ATA/ATAPI Command Set (ATA8-ACS):http://www.t13.org/documents/UploadedDo ... A8-ACS.pdfCode:Word 217 indicates the nominal media rotation rate of the device and is defined in table 37.Value  Description0001h  Non-rotating media (e.g., solid state device)At the risk of being accused of spoonfeeding, here is a method by which an end user can determine the RPM of his drive:http://groups.google.com/group/comp.sys ... 36d4afc140

Hello Mr.Franc. Thanks for your input. But I am just joking.