🚀 go-pugleaf

"RaynorPao" <RaynorPao.nospam@nospam.pchome.com.tw> wrote in message
news:3e9b6213$1@newsgroups.borland.com...

> How can I know my harddisk is busy
> or not? Is there any API can do this?

There is no API for that.  Why would you need one, though?  That is a very
unusual task to perform on your part.


Gambit

Hi.

Well... I for one, could imagine an application capable of showing a virtual
harddisk - in full blown DirectX or OpelGL 3D :

3D model: where is the head right now, lastest writes shown with red tracks,
latest writes with green... Ability to zoom and rotate disk and getting
realtime updates. - That would be awsome, nerdy and pretty coll wouldn't it?

Graphing: busy time in % during the year, month, day, hour, minute...

Tray icon: Blink like LED on cabinet

Best regards
  Michael F. S. Christensen


> There is no API for that.  Why would you need one, though?  That is a very
> unusual task to perform on your part.
>
> Gambit

Michael F. S. Christensen,

> 3D model: where is the head right now, lastest writes shown with red tracks,
> latest writes with green... Ability to zoom and rotate disk and getting
> realtime updates. - That would be awsome, nerdy and pretty coll wouldn't it?
>

Tricky to get it accurate though.

You can't easily equate physical sector number to cylinder/head/sector on 
modern drives. Just because a given PSN mathematically equates to a given 
C:H:S doesn't mean that that's actually where the drive is reading it from.

Modern drives have fewer sectors on the inner tracks than on the outer which 
you could probably account for but then you have the issue of spare sectors. 
To account for them (and most drives still start off with a few) you'd have to 
read the relevant table from the engineer section. Not easy and of course the 
format is not standardised.

But if anyone does write such a tool let me know - it would indeed by cool :)

Andrue Cope
[Bicester, UK]

Well i can give you a hit as to getting HDD time usage.
Under WinXP (not sure about 2K) there are logical and physical disk performance counters (run "perfmon").
With a bit of work, % of time usage can be obtained using perfmon APIs.

Andrue Cope <not.a.valid@email.address.sorry> wrote:
>Michael F. S. Christensen,
>
>> 3D model: where is the head right now, lastest writes shown with red tracks,
>> latest writes with green... Ability to zoom and rotate disk and getting
>> realtime updates. - That would be awsome, nerdy and pretty coll wouldn't it?
>>
>
>Tricky to get it accurate though.
>
>You can't easily equate physical sector number to cylinder/head/sector on 
>modern drives. Just because a given PSN mathematically equates to a given 
>C:H:S doesn't mean that that's actually where the drive is reading it from.
>
>Modern drives have fewer sectors on the inner tracks than on the outer which 
>you could probably account for but then you have the issue of spare sectors. 
>To account for them (and most drives still start off with a few) you'd have to 
>read the relevant table from the engineer section. Not easy and of course the 
>format is not standardised.
>
>But if anyone does write such a tool let me know - it would indeed by cool :)
>
>Andrue Cope
>[Bicester, UK]
>