[libvirt-users] storage pool vs storage volume
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 .
thanks Zvi Dubitzky Email:dubi@il.ibm.com
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
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@il.ibm.com Osier Yang <jyang@redhat.com> wrote on 21/03/2011 10:16:50:
From: Osier Yang <jyang@redhat.com> To: Zvi Dubitzky/Haifa/IBM@IBMIL Cc: libvirt-users@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
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Osier Yang -
Zvi Dubitzky