Noisy profile hard drive

From: John Lawson <jpl15_at_panix.com>
Date: Thu Dec 30 13:16:23 2004

On Thu, 30 Dec 2004, chris wrote:

> I've got someone asking me about a Profile hard drive in a Lisa 2/10. He
> says it makes a loud screaming noise when it is running. Maybe bad
> bearings?


  72 years ago, I was in charge of an early 3Com LAN, with drives in
stacked 'shoeboxes'. I came in one Monday morning to find one of the
drives making this thin 'shrieking' noise.

   I of course did a panic shutdown and got the Vendor rolling - turns out
that it was the Absolute Filter on top of the drive case making the same
kind of noise that one makes by blowing across a piece of taut paper. The
tech just pressed down on the aluminum cover at the edge of the filter
'pod' and that fixed it.

   I was sure the heads had crashed, but somehow the system was still
running - though I couldn't see how, since it sounded like the heads were
milling the platters into expensive red dust.

   Maybe this is what's happening here??


Cheers and Happy NuYeer to all and sundry!

John
Received on Thu Dec 30 2004 - 13:16:23 GMT