[linux-lvm] pvmove with Bad bocks

[Joe Thornber]

On Sun, Oct 21, 2001 at 02:07:46PM +0200, Ragnar Kjxrstad wrote:
> On Sat, Oct 20, 2001 at 03:51:24PM +0200, Stonki wrote:
> > Hello list, Hello Heinz,
> > 
> > on Tuesday you explained me the function of moving data from one
> > hard disc to another.
> > Well, regarding to Murphies Law... pvmove complains about read errors
> > and stops before moving all data.
> > 
> > Error reading input physical volume /dev/hdf1 still 393216 bytes to
> > read).
> 
> If you browse the archive for the last month you will find a couple of
> threads on the subject.
> 
> I've posted a cruel patch to make pvmove ignore read-errors, and update
> the meta-data even if the sector is bad. (The extent will be moved to
> the other disk, but contain garbage). With this patch the behaviour is
> undefined when moving more than one PE. Other than that, I think it
> should work.
> 
> Others posted suggestions and possible some patches too - allthough
> there was no complete perfect solution, I think you should be able to
> make it work from the different tips submitted in the thread.

The first thing I would try is shrinking the filesystem and pv by one
extent.  If this works the pv move should now work ok.

- Joe