Article View: comp.sys.mac
Article #8174Drive Noises and such...
From: C J Silverio
Date: Tue, 21 Nov 1989 01:28
Date: Tue, 21 Nov 1989 01:28
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1281 bytes
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.
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<1989Nov21.012836.1292@agate.berkeley.edu>Path:
arc1-ca.pugleaf.net!utzoo!attcan!uunet!aplcen!samsung!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!agate!brahms.berkeley.edu!silverioReferences:
<14618@well.UUCP> <9323@batcomputer.tn.cornell.edu> <20837@mimsy.umd.edu>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!aplcen!samsung!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!agate!brahms.berkeley.edu!silverio From: silverio@brahms.berkeley.edu (C J Silverio) Newsgroups: comp.sys.mac,comp.sys.mac.hardware Subject: Drive Noises and such... Message-ID: <1989Nov21.012836.1292@agate.berkeley.edu> Date: 21 Nov 89 01:28:36 GMT References: <14618@well.UUCP> <9323@batcomputer.tn.cornell.edu> <20837@mimsy.umd.edu> Sender: usenet@agate.berkeley.edu (USENET Administrator;;;;ZU44) Reply-To: silverio@brahms.berkeley.edu.UUCP (C J Silverio) Organization: Bath Department, UC Merkeley Lines: 13