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This is explained in the installation tutorials. The configuration guide has more detail.

In a nutshell, you create a section in cinder.conf that describes your LVM backend. Let's say you call it [lvm]. You then add the name of this section to the enabled_backends config parameter in the [DEFAULT] section, for example enabled_backends = lvm.

This is explained in the installation tutorials. The configuration guide has more detail.

In a nutshell, you create a section in cinder.conf that describes your LVM backend. Let's say you call it [lvm]. You then add the name of this section to the enabled_backends config parameter in the [DEFAULT] section, for example enabled_backends = lvm.

I don't quite understand what goes wrong in your case, but when you use the LVM driver, each Cinder volume will be implemented by an LVM volume from the volume group that you configure.

This is explained in the installation tutorials. The configuration guide has more detail.

In a nutshell, you create a section in cinder.conf that describes your LVM backend. Let's say you call it [lvm]. You then add the name of this section to the enabled_backends config parameter in the [DEFAULT] section, for example enabled_backends = lvm.

You say "the volume is created from volume groups but not from logical volume" - I don't quite understand what goes wrong in is your case, but when problem. From a volume group, you use the LVM driver, each create logical volumes. What is it that you want to create from a logical volume?

Each Cinder volume will be implemented by an LVM volume from the volume group that you configure.configure. Did you expect something else?

This is explained in the installation tutorials. The configuration guide has more detail.

In a nutshell, you create a section in cinder.conf that describes your LVM backend. Let's say you call it [lvm]. You then add the name of this section to the enabled_backends config parameter in the [DEFAULT] section, for example enabled_backends = lvm.

You say "the volume is created from volume groups but not from logical volume" - I don't understand what is your problem. From a volume group, you create logical volumes. What is it that you want to create from a logical volume?

Each When using the LVM driver, each Cinder volume will be is implemented by an LVM volume from the volume group that you configure. volume. Did you expect something else?