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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!drivax!liberato
- From: liberato@dri.com (Jimmy Liberato)
- Subject: Re: Funny Quantum 240AT HD noise?
- Message-ID: <MY0SBKAY@dri.com>
- Keywords: quantum hard disk
- Reply-To: liberato@dri.com (Jimmy Liberato)
- Organization: Novell/Desktop Systems Group, Monterey Development Center
- References: <1992Nov5.203049.20578@netcom.com> <Bxt9sr.Ms2@cs.vu.nl> <1992Nov16.144827.19571@utkux1.utk.edu> <1992Nov16.194747.23763@sfu.ca>
- Date: Tue, 17 Nov 92 17:42:55 GMT
- Lines: 29
-
- mtichy@fraser.sfu.ca (Martin Tichy) writes:
-
- >> I have a Quantum 120lps SCSI disk and it does the same thing. I am
- >> not quite sure what it is doing, but it does appear to be the
- >> normal thing for Quantum's lps drives to do.
- >
- >Yes it is normal for the Pro Drives to make that noise. I
- >believe someone else wrote that it is the drive compensating
- >for expansion/contraction that my have been caused by
- >temperature changes.
-
- Mine doesn't. Quantum started using ROMs with the periodic access sweep right
- after the big Apple recall for stiction problems a few years ago. I guess they
- figure it is better to keep the lubricant smeared around evenly.
-
- To those who claim that it is either the cache flushing or some sort of thermal
- recalibration, what is the method or mechanism for such? Since one head is
- dedicated to calibration, why would there be any need for recalibration. (This,
- by the way, is why modern drives don't need the low-level reformatting services
- of such (techinically great) products as Spinrite. The low-level format doesn't
- drift on such drives.)
-
- --
- Jimmy Liberato liberato@dri.com
- ...uunet!drivax!liberato
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