[Users] Increase storage domain

[Alan Johnson]

On Sat, Sep 29, 2012 at 3:47 PM, Ayal Baron <abaron at redhat.com> wrote:

> > > However, as I read this email, it occurred that some other things
> > > might not be equal. Specifically, using multiple LUNs could provide
> > > a means of shrinking the storage domain in the future. LVM provides
> > > a simple means to remove a PV from a VG, but does the engine
> > > support
> > > this in the CLI or GUI? That is, if the a storage domain has
> > > multiple LUNs in it, can those be removed at a later date?
> >
> > Not yet.
> >
> >
> > Does this mean it is in the works? If not, where could I put in such
> > feature request?
> >
> >
> > Certainly, I have no pressing need of this, but it seems like a
> > fairly simple thing to implement since I have done it so easily in
> > the past with a just a couple of commands outside of an oVirt
> > environment. I believe the primary purpose of the LVM functionality
> > was to enable removal of dying PVs before they take out an entire
> > VG. No reason it would not work just as well to remove a healthy PV.
> > It can take a long time to move all the extents off the PV
> > requested, but there is command to show the progress, so it would
> > also be easy to wrap that in to the GUI.
>
> What's simple in a single host environment is really not that simple when
> it comes to clusters.
> The tricky part is the coordination between the different hosts and doing
> it live or with minimal impact.
>
>
Fair enough, but it seems that the cluster environment has been addressed
with the SPM mechanism for all things LVM.  Certainly, initial coding the
feature would be fairly trivial, but I can imagine that testing in the
cluster environment might expose additional complexity.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.ovirt.org/pipermail/users/attachments/20121008/ae8f433b/attachment-0001.html>