[linux-lvm] pvmove unable to move extents to multiple smaller pvs

[Clint Byrum]

On Wed, 2004-09-29 at 13:02, Scott Serr wrote:
> Some more information that may be of use:
> kernel 2.4.26 (vanilla) on gentoo on a P4 HT and SMP is enabled
> lvm 2.00.08
> 
> It seems that everytime I do a "pvmove" it would be hard to always go to 
> a contiguous pv the same size or bigger.  This is why I wonder if I'm 
> doing something wrong.
> 

Scott, I think this was just discussed on the list last week. What you
need to do is pvmove in smaller chunks. pvmove only sees the first
available block of PE's.

So

pvmove /dev/diskdev:1-11194

Or something like that. Check the list archives from 2 or 3 days ago.

> Thanks again [to anyone out there],
> Scott Serr
> 
> Scott Serr wrote:
> 
> > I'm trying to use pvmove to shuffle things around.  I have a pv with 
> > 22375 extents which I would like to remove from the system.  I've 
> > added two (2) pvs with 11194 extents each.  I get an error message:
> >
> > Insufficient contiguous allocatable extents (11194) for logical volume 
> > pvmove0: 22375 required
> > Allocation for temporary pvmove LV
> >
> > Now before you say, don't make it contiguous... It seems that it isn't 
> > already.
> >
> > # lvchange --contiguous n /dev/data_vg/data_lv
> > Allocation policy of logical volume "data_lv" is already not contiguous
> >
> > Is this normal?  Do I really need all that contiguous space on 1 pv?
> >
> > Thanks in advance,
> > Scott Serr
> >
> > _______________________________________________
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> > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
> 
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