XenAPINFS is a Block Storage (Cinder) driver which is using an NFS share through XenAPI's Storage Manager to store virtual disk images and exposing those virtual disks as volumes. This driver is not accessing the NFS share directly, it is only accessing the share through XenAPI Storage Manager. This driver should be considered as a reference implementation for using XenAPI's storage manager in OpenStack (present in XenServer and XCP). A XenServer/XCP installation acting as Storage Controller. This document refers to this hypervisor as Storage Controller. Use XenServer/XCP as your hypervisor for compute nodes. An NFS share, that is configured for XenServer/XCP. For the specific requirements, export options, please refer to the administration guide of your specific XenServer version. It is also required that the NFS share is accessible by all the XenServers components within your cloud. For creating volumes from XenServer type images (vhd tgz files), XenServer Nova plugins are also required on the Storage Controller. It is possible to use a XenServer as a Storage Controller and as a compute node in the same time, thus the minimal configuration consists of a XenServer/XCP box and an NFS share. Local configuration (Recommended): The driver is running in a virtual machine on top of the storage controller. With this configuration, it is possible to create volumes from other formats supported by qemu-img.

Remote configuration: The driver is not a guest VM of the storage controller. With this configuration, you can only use XenServer vhd-type images to create volumes.

Assuming the following setup: XenServer box at 10.2.2.1 XenServer password is r00tme NFS server is nfs.example.com NFS export is at /volumes To use XenAPINFS as your cinder driver, set the following configuration options in cinder.conf: volume_driver = cinder.volume.drivers.xenapi.sm.XenAPINFSDriver xenapi_connection_url = http://10.2.2.1 xenapi_connection_username = root xenapi_connection_password = r00tme xenapi_nfs_server = nfs.example.com xenapi_nfs_serverpath = /volumes The following table contains the configuration options supported by the XenAPINFS driver.