NetNews Usenet Archive 1993 #3/NN_1993_3.iso/spool/comp/sys/ibm/pc/misc/17109

Text File | 1993-01-26 | 1.7 KB | 37 lines

Newsgroups: comp.sys.ibm.pc.misc
Path: sparky!uunet!spool.mu.edu!yale.edu!ira.uka.de!news.belwue.de!news.uni-ulm.de!news
From: [e-mail] (Buck Martin)
Subject: Re: Quantum 120at hdisk noise
In-Reply-To: [e-mail]'s message of Mon, 25 Jan 93 13:01:45 PST
Message-ID: <[e-mail]>
Sender: [e-mail] (News Net)
Organization: University of Ulm, Germany
References:  <[e-mail]>
Date: Tue, 26 Jan 1993 10:46:19 GMT
X-News-Reader: VMS NEWS 1.25beta
Lines: 23

In <[e-mail]> [e-mail] writes:

> I have a Quantum 120AT harddisk that as it sits idle always makes this
> sound about every 20 seconds like the head is scanning the platter and
> then it's silent again until the next time.  Is this normal. If anyone
> knows let me Know by e-mail or post.  Thanks in advance.
>
I also have a Quantum harddisk which makes the same sound.

In a booklet from Fujitsu I read that 'modern' HDDs (opposed to the old
ones with stepper-motor) do a 'thermal recalibration' which means that the
harddisk searches for the location of some tracks from time to time
(because these locations can change, when the drive gets hot).

So I think this is normal (though I don't understand why this has to be
done so often ?!?).


+-----------------------------------+-----------------------------+
| Martin Buck                       | Internet:                   |
| Student of electrical engineering |                             |
| University of Ulm, Germany        | [e-mail] |
+-----------------------------------+-----------------------------+