[comp.sys.mac.hardware] Noise From 105M Quantum

philip@pescadero.Stanford.EDU (Philip Machanick) (10/25/90)

Increasingly often, my 105M Qunatum (internal HD, IIci) carries on making
noise after completing a disk access, and only stops if I do another
disk access. Any ideas as to the cause / how serious this is?
-- 
Philip Machanick
philip@pescadero.stanford.edu

clay@iti.org (Clay A. Maeckel) (10/26/90)

philip@pescadero.Stanford.EDU (Philip Machanick) writes:
>Increasingly often, my 105M Qunatum (internal HD, IIci) carries on making
>noise after completing a disk access, and only stops if I do another
>disk access. Any ideas as to the cause / how serious this is?

Mine has started doing this also. (It's a MacinStor from Storage Dimensions)
The noise sounds like the heads are seeking back and forth slows down disk
accesses quite a bit when it is occuring. This weekend I'm taking it out
of my SE/30 and sending it to Storage Dimenstions for "repair".

--Clay

--
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 Claris Corporation   *   AppleLink: Maeckel1   *   CompuServe: 73057,255

stevem@hp-vcd.HP.COM (Steve Miller) (11/09/90)

>>Increasingly often, my 105M Qunatum (internal HD, IIci) carries on making
>>noise after completing a disk access, and only stops if I do another
>>disk access. Any ideas as to the cause / how serious this is?
>
>Mine has started doing this also. (It's a MacinStor from Storage Dimensions)
>The noise sounds like the heads are seeking back and forth slows down disk
>accesses quite a bit when it is occuring. This weekend I'm taking it out
>of my SE/30 and sending it to Storage Dimenstions for "repair".

This may be a little hard to believe, but as I remember some Quantum hard disks
had a firmware "Fix" to fix a head sticking problem.  The fix is to move
the head back and forth to keep it loose.

Steven Miller