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<chapter id="allocators">
<title>Allocators</title>
<para>&PRODUCT; enables administrators to write custom allocators that will choose the Host to place a new guest and the storage host from which to allocate guest virtual disk images.</para>
<para>These are following categories of allocators currently supported:</para>
<itemizedlist>
<listitem>
<para>HostAllocators - Allows you to create custom rules to determine which physical host to allocate the guest virtual machines on. </para>
</listitem>
<listitem>
<para>StoragePoolAllocators - Allows you to create custom rules to determine which storage pool to allocate the guest virtual machines on. </para>
</listitem>
</itemizedlist>
</chapter>