[libvirt-users] storage pool vs storage volume

[Zvi Dubitzky]

some more on pools ( storage and volume):

1. Are they  used for data storage only or also for images

2. How are they used by a VM , via the  <device> element ? Does libvirt 
knows how to use it
    or some additional staff (aside from defining ) is needed :

3. Does one has to specify both storage pool and a volume or just the 
volume is enough (in the VM XML) ?

thanks


Zvi Dubitzky 
Email:dubi at il.ibm.com



Osier Yang <jyang at redhat.com> wrote on 21/03/2011 10:16:50:

> From: Osier Yang <jyang at redhat.com>
> To: Zvi Dubitzky/Haifa/IBM at IBMIL
> Cc: libvirt-users at redhat.com
> Date: 21/03/2011 10:17
> Subject: Re: [libvirt-users] storage pool vs storage volume
> 
> 于 2011年03月21日 15:07, Zvi Dubitzky 写道:
> > Can anybody give a good reference to  understand the difference 
between
> > storage pool and storage volume
> >> From  what I have seem storage volume describes the physical storage 
media
> >   and the pool a collection of such
> > But from the XML at libvirt  I do not exactly understand that .
> >
> 
> Take the "directory" pool as example, you can simple imagine
> the pool is the directory, and the volume is the files under
> that directory.
> 
> Regards
> Osier