The NetApp unified driver for Data ONTAP operating in 7-Mode with Fibre Channel is a driver interface from OpenStack Cinder to NetApp Data ONTAP operating in 7-Mode storage controllers to accomplish provisioning and management of a storage-area network (SAN) block storage entity; that is, a NetApp LUN that uses the Fibre Channel protocol.
Note | |
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Both nodes in a 7-Mode HA pair must be independently declared as separate Cinder backends with an appropriate cross-reference to one another using the |
To set up the NetApp Data ONTAP operating in 7-Mode Fibre Channel driver for Cinder, the following stanza should be added to the Cinder configuration file (cinder.conf
) for the first node in the HA Pair:
[myFCBackend] volume_backend_name=myFCBackend netapp_partner_backend_name=myOtherFCBackend volume_driver=cinder.volume.drivers.netapp.common.NetAppDriver netapp_server_hostname=hostname
netapp_server_port=80
netapp_storage_protocol=fc netapp_storage_family=ontap_7mode netapp_login=admin_username
netapp_password=admin_password
max_over_subscription_ratio=1.0
reserved_percentage=5
consistencygroup_support = True
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To set up the second node in the HA Pair, add the following stanza to the Cinder configuration file (cinder.conf
):
[myOtherFCBackend] volume_backend_name=myOtherFCBackend netapp_partner_backend_name=myFCBackend volume_driver=cinder.volume.drivers.netapp.common.NetAppDriver netapp_server_hostname=hostname
netapp_server_port=80
netapp_storage_protocol=fc netapp_storage_family=ontap_7mode netapp_login=admin_username
netapp_password=admin_password
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Table 4.18, “Configuration options for Data ONTAP operating in 7-Mode with Fibre Channel” lists the configuration options available for the unified driver for a clustered Data ONTAP deployment that uses the Fibre Channel storage protocol.
Option | Type | Default Value | Description |
netapp_server_hostname |
Required | The hostname or IP address for the storage system or proxy server. The value of this option should be the IP address of either the cluster management LIF or the SVM management LIF. | |
netapp_server_port |
Optional | The TCP port to use for communication with the storage system or proxy server. If not specified, Data ONTAP drivers will use 80 for HTTP and 443 for HTTPS; E-Series will use 8080 for HTTP and 8443 for HTTPS. | |
netapp_login |
Required | Administrative user account name used to access the storage system or proxy server. | |
netapp_password |
Required | Password for the administrative user account specified in the netapp_login option. |
|
netapp_storage_protocol |
Required | The storage protocol to be used. Valid options are nfs , iscsi or fc . |
|
netapp_transport_type |
Required | http |
Transport protocol for communicating with the storage system or proxy server. Valid options include http and https . |
netapp_size_multiplier |
Optional | 1.2 | When creating volumes, the quantity to be multiplied to the requested OpenStack volume size to ensure enough space is available on the SVM (aka Vserver). This value is currently only used when ISCSI has been selected as the storage protocol to be used. |
netapp_volume_list |
Deprecated | This option has been deprecated in preference of netapp_pool_name_search_pattern . Backwards compatibility for this option remains, but this option will be removed in a future release of OpenStack. |
|
netapp_vfiler |
Optional | The vFiler unit on which provisioning of block storage volumes will be done. This option is only used by the driver when connecting to an instance with a storage family of Data ONTAP operating in 7-Mode. Only use this option when utilizing the MultiStore feature on the NetApp storage system. | |
netapp_storage_family |
Required | ontap_cluster |
The storage family type used on the storage system; valid values are ontap_7mode for Data ONTAP operating in 7-Mode, ontap_cluster for clustered Data ONTAP, or eseries for E-Series. |
netapp_partner_backend_name |
Required | The name of the cinder.conf stanza for a Data ONTAP operating in 7-Mode HA partner. This option is only used by the driver when connecting to an instance with a netapp_storage_family value of ontap_7mode and is required when netapp_storage_protocol is set to fc . |
|
netapp_lun_space_reservation |
Optional | enabled |
This option specifies whether space will be reserved when creating Cinder volumes on NetApp backends using the iSCSI or FC storage protocols. If this option is set to enabled , LUNs created during volume creation or volume cloning workflows will always be thick provisioned. If this option is set to disabled , LUNs created during volume creation or volume cloning workflows will always be thin provisioned. Note that this option does not affect the implementation of Cinder snapshots, where the LUN clone that represents the snapshot will always be thin provisioned. Valid options are enabled and disabled . |
reserved_percentage |
Optional | 0 |
This option represents the amount of total capacity of a storage pool that will be reserved and cannot be utilized for provisioning Cinder volumes. |
max_over_subscription_ratio |
Optional | 20.0 |
This option is defined as a float, and specifies the amount of over-provisioning to allow when thin provisioning is being used in the storage pool. A value of 1.0 will mean that the provisioned capacity will not be able to exceed the total capacity, while larger values will result in increased levels of allowed over-provisioning. |
netapp_pool_name_search_pattern |
Optional | (.+) |
This option is only utilized when the Cinder driver is configured to use iSCSI or Fibre Channel. It is used to restrict provisioning to the specified FlexVol volumes. Specify the value of this option as a regular expression which will be applied to the names of FlexVol volumes from the storage backend which represent pools in Cinder. ^ (beginning of string) and $ (end of string) are implicitly wrapped around the regular expression specified before filtering. |
consistencygroup_support |
optional | False | Enables support for Cinder consistency groups in the driver |
filter_function |
Optional | (see description) | This option may be used to override the default filter function, which prevents Cinder from placing new volumes on storage controllers that may become overutilized. The default value is "capabilities.utilization < 70". |
goodness_function |
Optional | (see description) | This option may be used to override the default goodness function, which allows Cinder to place new volumes on lesser-utilized storage controllers. The default value is "100 - capabilities.utilization". |
Important | |
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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. |