Noisy profile hard drive

From: Lyle Bickley <>
Date: Thu Dec 30 13:35:28 2004

Since 3COM was founded in 1979, I don't think you were working on 3COM 72
years ago ;-)


On Thursday 30 December 2004 11:16, John Lawson wrote:
> 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

Lyle Bickley
Bickley Consulting West Inc.
"Black holes are where God is dividing by zero"
Received on Thu Dec 30 2004 - 13:35:28 GMT

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