Albert Cahalan wrote:
> On 11/4/06, Jan-Benedict Glaw <[email protected]> wrote:
> > Albert Cahalan <[email protected]> wrote:
> > > BTW, a person with disk recovery experience told me that drives
> > > will sometimes reorder the sectors. Sector 42 becomes sector 7732,
> > > sector 880880 becomes sector 12345, etc. The very best filesystems
> > > can handle with without data loss. (for example, ZFS) Merely great
> > > filesystems will at least recognize that the data has been trashed.
> >
> > Uh? This should be transparent to the host computer, so logical sector
> > numbers won't change.
>
> "should be" does not imply "won't" :-)
>
> On a drive which is capable of remapping sectors, imagine what
> happens if the remapping data itself is corrupted. (the user data
> is perfectly fine and is not being relocated)
I would consider this a defective drive.
> What I mean is that the logical sector numbers not only change,
> but they are the only thing changing. The user data never moves
> to a different physical location, and is never intended to move.
> The user data is perfectly readable. It just appears in the wrong
> place as viewed by the OS.
Just like defective drive electronics; the data is ok, but the electronics
corrupts the I/O.
No FS could help you there, AFAIK.
BTW, why is this thread not on fsdevel?
Thanks!
--
Al
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
