[xen-tools-discuss] Re: Using AoE storage

[Mike Bailey]

On Tue, Nov 11, 2008 at 1:09 AM, Tom Hallman <hallmant at dm.org> wrote:
> Mike Bailey wrote:
> > I've been playing with live migration over the last week. So far I've
> been
> > able to use one partition with a single volume group on it to hold all
> > domU's .
> > sudo apt-get install aoetools lvm2
> > pvcreate /dev/etherd/e1.1
> > vgcreate /dev/etherd/e1.1 xendisks
> >
> > Then in /etc/xen-tools/xen-tools.conf specify:
> >
> > lvm = xendisks
>
> Hi Mike,
>
>   Thanks for your response.  Has this been working well for you?


I've only used it in testing.


>   I assume those commands have to specified on each host that needs to
> use the shared storage.


The pvcreate and vgcreate only need to be run on one host. The other hosts
pick up
on the settings because LVM details are written to the disks.


>  Does this require LVM to use any kind of
> locking?


This doesn't give me locking. I'm not comfortable with that.

CLVM does give you clustered locking but I haven't got that working.

- Mike