[linux-lvm] Re-Striping a LV after adding a PV

[James Hawtin]

On Wed, 3 Apr 2002, Ph. Marek wrote:

> Hi everybody!
>
> As seen in
> 	http://marc.theaimsgroup.com/?l=linux-lvm&m=99121490215720&w=2
> there is a reference to restriping a LV after adding a disk in may 2001.
> It's mentioned to be "post 1.0" - I currently use 1.0.1-rc2 (suse 7.3) and
> find 1.0.1-rc4 on the 'net - is restriping a LV already done?
>
> I thought about doing it per perl-script or similar - but pvmove does not
> know that the PE it moved are free afterwards.
> So if I have a non-striped LV, with extends (say) 0-9.
> I add a disk and pvmove 1:3:5:7:9 to the new disk - works beautiful.
> Then I want to get part of the LV on the first PV continuous - so I
> pvmove 2:4:7:8 to the same disk as they are on - but they land on
> 1,3,5,7 instead of 1,2,3,4.
>
> But this is maybe too slow anyway (with perl) - I'd need it for several
> tens of GB.
>
>
> Can somebody give me a hint?

If you want use PVmove get 1.0.3 I moved Strips with that one, it has
fixed the free problem.

pvmove .......  /oldpv /newpv

IF you want to tell it where to put it.

I used PV move for a 40 Gb strip... it took about an hour for me.

James