NetApp Driver for E-Series with Fibre Channel

As described in the section called “Theory of Operation & Deployment Choices”, Cinder with NetApp E-Series requires the use of the NetApp SANtricity Web Services Proxy server deployed as an intermediary between Cinder and the E-Series storage system. A common deployment topology with Cinder, Nova, and an E-Series controller with the SANtricity Web Services Proxy can be seen in Figure 4.8, “Cinder & E-Series Deployment Topology”.

 

Figure 4.8. Cinder & E-Series Deployment Topology

	Tip
	Installation instructions for the NetApp SANtricity Web Services Proxy server are available for download at https://library.netapp.com/ecm/ecm_download_file/ECMLP2428355, and the User Guide is available for download at https://library.netapp.com/ecm/ecm_download_file/ECMLP2428357.

Dynamic disk pools (as described in the section called “Description of E-Series and EF-Series Systems”) and volume groups are the supported disk collection strategies when utilizing the Cinder E-Series driver. For more information on the capabilities of the E-Series storage systems, visit http://support.netapp.com.

	Important
	The use of multipath and DM-MP are required when using the OpenStack Block Storage driver for E-Series.

To set up the NetApp E-Series driver for Cinder, the following stanza should be added to the Cinder configuration file (cinder.conf):

[myESeriesBackend] 
volume_backend_name=myESeriesBackend
volume_driver=cinder.volume.drivers.netapp.common.NetAppDriver
netapp_server_hostname=hostname
netapp_server_port=8080
netapp_transport_type=http
netapp_storage_protocol=fc 
netapp_storage_family=eseries 
netapp_controller_ips=1.2.3.4,1.2.3.5
netapp_sa_password=storage_array_password
netapp_pool_name_search_pattern=(.+)
netapp_login=admin_username
netapp_password=admin_password
use_multipath_for_image_xfer=True
max_over_subscription_ratio=1.0
reserved_percentage=5
consistencygroup_support = True
            

	Important
	In order for Fibre Channel to be set up correctly, you also need to set up Fibre Channel zoning for your backends. See the section called “Fibre Channel Switch Fabric With Cinder” for more details on configuring Fibre Channel zoning.

	Important
	In order for OpenStack Block Storage and OpenStack Compute to take advantage of multiple paths, the following configuration options must be correctly configured: The use_multipath_for_image_xfer should be set to True in cinder.conf within the driver stanza.

Table 4.20, “Configuration options for E-Series with Fibre Channel” lists the configuration options available for the unified driver for a E-Series deployment that use the Fibre Channel storage protocol.