On 28 Jul 2005 at 1:40, Rob Studdert wrote:

> I've got a 1" multi-platter drive next to me with it's guts exposed at the
> moment and it's got no such facility. I'll rip the top off a smaller dodgy 
> drive
> tomorrow and see what I can find. I might even break out a macro lens :-)

I just pulled the lid off a working drive that had media errors and to my 
surprise this drive doesn't just not retract the heads it doesn't even park 
them in the centre of the disk either. The unit is a Fujitsu (generally deemed 
as reliable) 3040AT (5/1998). It's plain to see in the pics that there are only 
connections to the heads on the actuator arm and that it's a rigid design.

http://home.swiftdsl.com.au/~distudio/temp/IMGP2873.jpg (~200kB)
http://home.swiftdsl.com.au/~distudio/temp/IMGP2874.jpg (~200kB)

The drive pictured below is a deceased IBM SCSI server drive (DFHS), again 
media defects were its downfall. This one parks its heads but again there is no 
retraction mechanism.

http://home.swiftdsl.com.au/~distudio/temp/IMGP2877.jpg (~200kB)
http://home.swiftdsl.com.au/~distudio/temp/IMGP2878jpg (~200kB)

So be gentle with your hard drives if you value your data particularly portable 
units.

Cheers,


Rob Studdert
HURSTVILLE AUSTRALIA
Tel +61-2-9554-4110
UTC(GMT)  +10 Hours
[EMAIL PROTECTED]
http://members.ozemail.com.au/~distudio/publications/
Pentax user since 1986, PDMLer since 1998

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