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<h1>Storage management architecture</h1>
<p>
The storage management APIs are based around 2 core concepts
</p>
<ol><li>
<strong>Volume</strong> - a single storage volume which can
be assigned to a guest, or used for creating further pools. A
volume is either a block device, a raw file, or a special format
file.
</li><li>
<strong>Pool</strong> - provides a means for taking a chunk
of storage and carving it up into volumes. A pool can be used to
manage things such as a physical disk, a NFS server, a iSCSI target,
a host adapter, an LVM group.
</li></ol>
<p>
These two concepts are mapped through to two libvirt objects, a
<code>virStorageVolPtr</code> and a <code>virStoragePoolPtr</code>,
each with a collection of APIs for their management.
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