Archived from groups: comp.sys.ibm.pc.hardware.storage (
More info?)
HaHaHooHooHeeHee wrote:
> "Folkert Rienstra" <see_reply-to@myweb.nl> wrote in
> news:42bdb1e2$0$62488$892e7fe2@authen.white.readfreenews.net:
>
>> "HaHaHoHoHeeHee" <HaHaHoHoHeeHee-_invalid@lycos.com> wrote in message
>> news:Ham967FA54D9DE900114539sl329HaHaHoHo@213.155.197.138
>>> on 23 Jun 2005, "Folkert Rienstra" <see_reply-to@myweb.nl> wrote in
>>> news:42bb3ba1$0$34273$892e7fe2@authen.white.readfreenews.net:
>>>
>>> > "HaHaHoHoHeeHee" HaHaHoHoHeeHee-_invalid@lycos.com> wrote in
>>> > message news:Ham967E7E8FD106B0114539sl329HaHaHoHo@213.155.197.138
>>> > > I would greatly appreciate any assistance on this problem.
>>> > >
>>> > > WD 3 gig drive, messed up by incompetent shop. Now installed on
>>> > > new system as CSEL/CS (cable select) as secondary drive.
>>> > >
>>> > > Most files appear in explorer and are accessible, except that
>>> > > many give "cannot access drive" errors.
>>> > >
>>> > > Using GDB, Rescue and PCIfilerecovery, none work. PCIfr appears
>>> > > to freeze, Rescue does the same and GDB, while not freezing
>>> > > gives a varying estimate time for the recovery process of 10-20
>>> > > hours-goes extremely slowly with many err 10 read LBAs and bad
>>> > > sectors.
>>> > >
>>> > > Scandisk gets to about 95% of the drive and then gives "finding
>>> > > crosslinked sectors" and then goes back to 85%. This behavior
>>> > > appears to be a continuous loop as it never gets past 95% for
>>> > > like 10 minutes.
>>> > >
>>> > > WD diagnostic software gives "smart status failed at checkpoint
>>> > > 1 and 2-contact tech support for further info.
>>> > >
>>> > > This is a dell xps 800 mhz dimension, win98se.
>>> > >
>>>
>>>
>>> I do not believe their is a physical problem with the drive.
>>
>> I didn't say there was. I said to get rid of the bad sectors first.
>>
>>> It was perfect before this moron tech got his hands on it and he
>>> screwed up the logical tables, prob. FAT on the drive.
>>
>> Then there are no bad sectors, but later on you bring them up again.
>> So what is it? Surely the tech didn't write bad sectors.
>>
>>> The drive still makes no
>>> noise and I can access most of the files.
>>
>> This has nothing to do with the 'tables' then.
>>
>
> I never claimed to be an expert on hard drives (obviously).
> So you are saying that ANY bad sector error has nothing to do with
> ANY logical error, such as scrambled FAT?
A bad sector can cause a scrambled FAT. A scrambled FAT cannot cause a bad
sector. On the other hand malware on your system could both scramble the
FAT and falsely report bad sectors.
> IOW, if GDB, for example
> reports bad sectors, that HAS to be a physical problem with the drive?
Unless it's the result of a bug in GDB or a false report generated by a
virus or other malware, yes.
> I find this hard to fanthom since the rest of the drive operates
> normally, does not seem to have increased bad sectors and makes no
> noise.
IDE drives have sparing. A drive can have a large number of bad sectors and
you will never see it because they have all been mapped to spare sectors.
However when the drive runs out of spares, then you'll start to see bad
sectors reported. You'll also see bad sectors that have developed since
the data was written--they're supposed to be remapped on the next write
unless the drive is out of spares mappable to that location.
> Since from your previous posting you seem to like spinrite,
> does that offer anything more GDB or the others seem to offer? I have it
> but have not used it due to the many reports of day+ completion times
> from both reviewers and users.
Spinrite basically reads or tries to read the data on a bad sector and then
rewrites it. On the old stepper motor drives where the head position
occasionally drifted this worked because it realigned the data with the
drifted heads. On IDE drives it works because it allows the drive to remap
the sector. The long completion times are the result of the number of
repetitive reads needed for it to decide that it's gotten an accurate read
off the bad sector or give up on it and move on.
Generally speaking it's better to replace the drive than to Spinrite it--if
it's degenerated to the point that Spinrite seems necessary then it's
generally not got long to live.
--
--John
to email, dial "usenet" and validate
(was jclarke at eye bee em dot net)