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Re: [Xen-devel] Xen domU xvd disk online resize support

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Xen domU xvd disk online resize support
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Tue, 9 Sep 2008 11:39:09 +0300
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On Mon, Sep 08, 2008 at 04:36:27PM +0100, Keir Fraser wrote:
> On 6/9/08 13:42, "Pasi Kärkkäinen" <pasik@xxxxxx> wrote:
> 
> > Hello list! (resending, it seems the previous mail didn't make it to the 
> > list)
> > 
> > At some point Xen supported block-reconfigure to resize domU disks on the
> > fly..
> > This is not working atm/anymore?
> 
> 'xm block-configure' has only ever worked for changing the backing
> file/partition for a CD-ROM virtual disc attached to an HVM guest. Quite a
> specific set of assumptions!
>

Ok..
 
> It has certainly never allowed online resizing of VBDs to PV guests, and the
> block protocol to PV guests currently does not support that operation. Thus
> it would require changes in vendor Xen kernels to support it.
> 
>  -- Keir

Understood. Might be a nice new feature for Xen 3.4 ?

Vendors can add/patch support for that if they feel like it.. ?

-- Pasi

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