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- Newsgroups: seattle.general
- Path: sparky!uunet!nwnexus!uw-coco!uw-beaver!news.u.washington.edu!carson.u.washington.edu!tzs
- From: tzs@carson.u.washington.edu (Tim Smith)
- Subject: Re: Computer Hardware Dealers...Who To Avoid
- Message-ID: <1992Nov22.024513.2535@u.washington.edu>
- Sender: news@u.washington.edu (USENET News System)
- Organization: University of Washington School of Law, Class of '95
- References: <1992Nov19.025700.19572@u.washington.edu> <1992Nov19.191558.4996@nwnexus.WA.COM> <1992Nov20.202121.13473@eskimo.com>
- Distribution: seattle
- Date: Sun, 22 Nov 1992 02:45:13 GMT
- Lines: 27
-
- kurt@eskimo.com (Kurt Cockrum) writes:
- >> I've have to disagree with you. I bought a computer from them, brought
- >>it in for service and they reformatted my HD wiping out 5 Megs of
- >>research on a project which is now patent pending. They set me back
- >>several months.
- >[...]
- >
- >One reason the HD got reformatted was to avoid issues WRT possibly
- >seeing sensitive/proprietary data. Makes a lot of sense. It's a damned
- >sight easier to just wipe out the data on the HD rather than take on
- >non-compensated fiduciary responsibilities WRT somebody's data.
- >I don't know technically how it's done, but I would guess that it's
- >similar to a degaussing operation, i. e. by bulk application of a rapidly
- >changing global magnetic field, rather than real writes to the head of the
- >disk. Most of the time the latter is impossible anyway :) ...
-
- I would doubt that they would use a bulk eraser on a hard disk. Disk
- drives often store information of their own, such as bad block mappings,
- parameter settings, log information, and other assorted things of
- interest.
-
- It would not be good to wipe this out. In fact, I believe that some disks
- store updates to their firmware on reserved areas of the disk. Bulk
- erasing on of these might require the disk to be then sent back to the
- factory to get it working again!
-
- --Tim Smith
-