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Article #16940

Re: Harddisk

#16940
From: MWP
Date: Tue, 15 Apr 2003 17:47
30 lines
2301 bytes
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]
>
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