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- From: bram@fangorn.hacktic.nl (Bram Smits)
- Newsgroups: sci.electronics
- Subject: Re: Hard Disks: Toss them out when they break?
- Message-ID: <gate.Z20yXB1w165w@utopia.hacktic.nl>
- Date: 26 Jan 93 04:40:22 GMT
- References: <15642.2b625d73@ohstpy.mps.ohio-state.edu>
- Organization: Fangorn System
- Lines: 74
- NewsSoftware: Rnf 0.73b
-
- garland@ohstpy.mps.ohio-state.edu writes:
-
- >I have about a dozen small computers in my labgroup, which we leave on 24 hours
-
- <cut>
-
- >The hard disks tend to last about three years before they start to go bad.
- >Historically, we've just tossed them out and replaced them. We've not bothered
- >with doing a low-level format or otherwise trying to restore them to health,
- >the rationale being that the replacement costs are low and extracting another
- >six months or so of life isn't worth the bother.
- >
- >I'd like to know if this is a sensible policy? What actually goes bad in the
-
- Depends.... If you don't give a damn about the money, well, why don't you
- replace the entire computer ?? :-)
-
- OK, back to normal : No, it isn't a sensible policy. Due to wear and tear
- and so, after a couple of years the heads aren't in the exact same position
- anymore as when you started using the drive, and same goes for the plates.
- So the blocks of data aren't where the drive
- expects them anymore. So reformatting the drives puts the blocks and the heads
- back 'in sync', and you should be able to use the drive for another while
- So yes, it pays to reformat the drives every couple of years, when they
- go bad. OK, that was the easy part. At least you can try....
-
- Now, of course it does happen that drives really go bad. You notice soon
- enough : Drives that don't respond anymore (electronics gone bad), make
- funny noises, don't make noise anymore (i.e. motor(s) gone dead), heads
- don't move anymore (you can hear that, the 'ticking' noise when accessing
- the drive is gone), entire amounts of data gone (one or more heads gone
- bad, or 'head channels' in the electronics gone bad ), etc.... etc...
- etc.... Let me put it this way : You know a dead drive when you encounter
- one. With the modern, reliable drives the chances of the mechanical or
- electronical parts going bad are almost equal. So (if you have someone who
- likes doing that kind of stuff) you could save a bunch of old drives, and
- when you have a couple of drives (of equal type off course) you can try to
- match good boards with good mechanical units, and voila, you have (a)
- working drive(s)....
-
- I know of a lot of people who do it that way, and they usually have LOTS of
- BIG hard drives in their computers.....
-
- I know, for an organisation that kind of hobbying is out of the question,
- but for private use those 'reconditioned' drives should be good for another
- couple of years..... Heck, if you just throw them out, can't you send them
- to me ?? Then I could try to fix'em up and put them in my own machines.
- I wouldn't mind paying the postage, as long as it are drives of reasonable
- size (MB-wise.... ) Just Email to arrange something.....
-
- >should just reformat them every few years and keep on using them? I've seen
- >software adverstised that claims that we should do this, but I've no idea how
- >good it really works? I'd sure appreciate any knowledgable advice. Thanks.
-
- That is probably about LowLevel formatting ?? For most drives you can do that
- yourself, with normal tools (debug, firmware lowlevel routines...). Of course
- there is some software that will make that a lot easier.... I have some good
- experience with CALIBRAT (I believe that comes with Norton Utils) and
- SpeedStor (you can find their add in Byte). That got a bunch of 'unreliable'
- drives back in working order..... Just be very carefull with IDE
- drives, as lowleveling those without the proper software is very likely to
- trash them. It can be done, but you need some very special software... You
- should contact the manufacturer of that specific IDE drive for more info....
-
-
- Cya,
-
- v__
- <"___\____ Bram 'mouser' Smits.
-
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