Cinder Installation Guide for Ubuntu

This section describes how to install and configure storage nodes for the Block Storage service. For simplicity, this configuration references one storage node with an empty local block storage device. The instructions use /dev/sdb, but you can substitute a different value for your particular node.

The service provisions logical volumes on this device using the LVM driver and provides them to instances via iSCSI transport. You can follow these instructions with minor modifications to horizontally scale your environment with additional storage nodes.