hard drive data recovery

From: Philip.Belben_at_powertech.co.uk <(Philip.Belben_at_powertech.co.uk)>
Date: Tue Jul 14 13:51:13 1998

Allison (>>) and Tony (>) wrote:

>> media you may pit it some or at least remagnetize a small area, disaster
>> for servo tracks.
>>
>> FYI/note: Why do ALL drives spin up then load the heads? It's to allow
>
> A lot of winchesters land the heads on the platter - and not always in a
> special 'landing zone'. This implies the heads start flying as the disk
> gets up to speed.
>
> It also implies that the heads can land on the platter without damage. On
> the other hand, there's a difference between the landing when the drive
> spins down, and crashing due to hitting a dust particle.
>
>> the airflow from the spinning media to establish the clean airflow inside
>> the drive. Also any dust on the active portion of the media spins off the
>> media and is then captured in a filter.
>
> Agreed...

A lot has been said about dust in hard drives, most of it assuming that
the dust is dry. But only one person (sorry, can't remember who) has
talked about other things.

Remember, not all pollutants are dry. Some (water, spittle) are wet,
and some are quite sticky (ever parked your car under lime trees?).
These will mess a hard drive up something cruel!

Yes, if you take reasonable precautions, you may well be OK. But one
day, if you haven't got a clean room, you will come to grief...

BTW, I have two questions. What does HEPA stand for? And (Christian
will parobably be able to answer this) how do you grade clean rooms? I
take it it has something to do with the size of the largest particles
you'll find in the air and/or how many of them you have...

Oh yes. I take it "Tobacco for chewing only" goes without saying ;-)

Philip.
Received on Tue Jul 14 1998 - 13:51:13 BST