On Tuesday 02 March 2010 13:35:23 J.C. Roberts wrote:
> On Tue, 02 Mar 2010 11:06:46 -0500 [email protected] wrote:
> > Quoting "J.C. Roberts" <[email protected]>:
> > > And I thought I was expected to be inconsistent. ;)
> > >
> > > Anyhow, I was upgrading from the Feb 2, to the most recent
> > > snapshot, and fsck is coming up with a problem on one of my
> > > partitions. I can probably get it working ("fix" is such a strong
> > > word) with `fsck -fy` but my real concern is if the drive is
> > > failing?
> > >
> > > atactl tells me everything is just fine?
> > >
> > > I have a nearly identical system, with the same type of disk, which
> > > reports similar atactl attributes... but then again, I don't really
> > > trust SATA/PATA drives very much or their supposedly "smart"
> > > monitoring.
> > >
> > > The data on the system is not only backed up, but it's also easily
> > > replaced since the machine is only used for src and ports builds. I
> > > think I might lose a total of a few newly downloaded distfiles
> > > since the last backup.
> > >
> > > What I really want to do here is understand *why* some portion of
> > > the disk has become unreadable?
> >
> > I've seen the smart system report errors and have had them become
> > true a few times, but far more often I've seen the damn things report
> > "No proble, Boss" and then died a little later...
> >
> > You could have any number of things going on giving you those read
> > errors.  With the right test jig from the manufacturer you'd likely
> > know. My guess would be an op amp for one of the heads isn't quite
> > working right.  The other possibility is that part of the disk wasn't
> > coated right and you have a weak spot, magnetically speaking.
> >
> > But you'll never really know.  At least you now have a new target, for
> > practice with.  Sabot rounds are great for little disks...
>
> Where's Nick and his nail gun when we need him?
>
> I got to work with some people from the "disk industry" and know how
> secretive they must be about how stuff actually works due to NDA's. I'd
> have better odds as a snowball in hell than getting the needed test
> equipment and docs from the vendor.

Very likely true, which I why I say that you have an interesting target!

--STeve Andre'

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