[comp.sys.mac.hardware] Drive Noises and such...

silverio@brahms.berkeley.edu (C J Silverio) (11/21/89)

Julian Vrieslander writes:
  I do notice that the drive will occasionally exercize its swing arm when
  there is no read/write going on.  Every few minutes there is a very brief
  sound, as if the arm makes one stroke and stops (I have not timed it).

I've had a lot of experience with hard disk drives, so I know this
noise well. It is often called "thermal realignment" and is NORMAL for
many brands of drive. Because of the precise tolerances on tracks, the
drive will seek a few tracks every few minutes, to recalibrate its
servo mechanisms. Reason: as the drive warms up, the distance between
the tracks increases.

Really folks, don't be so paranoid. 

johnw@shiva.reed.edu (John B. Windberg) (11/23/89)

[relevant stuff deleted...]

> Really folks, don't be so paranoid. 


Paranoia saves files, and systems, and applications, and ..........

(A little paranoia in life is healthy.  A little paranoia in computers
is necessary.)


    _ _     Duh!                                 | 
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silverio@brahms.berkeley.edu (C J Silverio) (11/25/89)

I wrote:
	Really folks, don't be so paranoid. 

And John B. Windberg replies:
	Paranoia saves files, and systems, and applications, and ..........
	(A little paranoia in life is healthy.  A little paranoia in
	computers is necessary.)


So when was the last time you made a backup?

It's not paranoia, it's REALITY.