Hitachi NAS Platform File Services Driver for OpenStack

Overview

The Hitachi NAS Platform File Services Driver for OpenStack provides NFS Shared File Systems to OpenStack.

Requirements

  • Hitachi NAS Platform Models 3080, 3090, 4040, 4060, 4080, and 4100.
  • HNAS/SMU software version is 12.2 or higher.
  • HNAS configuration and management utilities to create a storage pool (span) and an EVS.
    • GUI (SMU).
    • SSC CLI.

Supported shared file systems and operations

The driver supports CIFS and NFS shares.

The following operations are supported:

  • Create a share.
  • Delete a share.
  • Allow share access.
  • Deny share access.
  • Create a snapshot.
  • Delete a snapshot.
  • Create a share from a snapshot.
  • Extend a share.
  • Shrink a share.
  • Manage a share.
  • Unmanage a share.

Preparation and Deployment

Note

The manila-share node only requires the HNAS EVS data interface if you plan to use share migration.

Important

It is mandatory that HNAS management interface is reachable from the Shared File System node through the admin network, while the selected EVS data interface is reachable from OpenStack Cloud, such as through Neutron flat networking.

Configuration on Kolla deployment

Enable Shared File Systems service and HNAS driver in /etc/kolla/globals.yml

enable_manila: "yes"
enable_manila_backend_hnas: "yes"

Configure the OpenStack networking so it can reach HNAS Management interface and HNAS EVS Data interface.

To configure two physical networks, physnet1 and physnet2, with ports eth1 and eth2 associated respectively:

In /etc/kolla/globals.yml set:

neutron_bridge_name: "br-ex,br-ex2"
neutron_external_interface: "eth1,eth2"

Note

eth1: Neutron external interface. eth2: HNAS EVS data interface.

HNAS back end configuration

In /etc/kolla/globals.yml uncomment and set:

hnas_ip: "172.24.44.15"
hnas_user: "supervisor"
hnas_password: "supervisor"
hnas_evs_id: "1"
hnas_evs_ip: "10.0.1.20"
hnas_file_system_name: "FS-Manila"

Configuration on HNAS

Create the data HNAS network in Kolla OpenStack:

List the available tenants:

$ openstack project list

Create a network to the given tenant (service), providing the tenant ID, a name for the network, the name of the physical network over which the virtual network is implemented, and the type of the physical mechanism by which the virtual network is implemented:

$ neutron net-create --tenant-id <SERVICE_ID> hnas_network \
--provider:physical_network=physnet2 --provider:network_type=flat

Optional - List available networks:

$ neutron net-list

Create a subnet to the same tenant (service), the gateway IP of this subnet, a name for the subnet, the network ID created before, and the CIDR of subnet:

$ neutron subnet-create --tenant-id <SERVICE_ID> --gateway <GATEWAY> \
--name hnas_subnet <NETWORK_ID> <SUBNET_CIDR>

Optional - List available subnets:

$ neutron subnet-list

Add the subnet interface to a router, providing the router ID and subnet ID created before:

$ neutron router-interface-add <ROUTER_ID> <SUBNET_ID>

Create a file system on HNAS. See the Hitachi HNAS reference.

Important

Make sure that the filesystem is not created as a replication target. Refer official HNAS administration guide.

Prepare the HNAS EVS network.

Create a route in HNAS to the tenant network:

$ console-context --evs <EVS_ID_IN_USE> route-net-add --gateway <FLAT_NETWORK_GATEWAY> \
<TENANT_PRIVATE_NETWORK>

Important

Make sure multi-tenancy is enabled and routes are configured per EVS.

$ console-context --evs 3 route-net-add --gateway 192.168.1.1 \
10.0.0.0/24

Create a share

Create a default share type before running manila-share service:

$ manila type-create default_share_hitachi False

+--------------------------------------+-----------------------+------------+------------+--------------------------------------+-------------------------+
| ID                                   | Name                  | visibility | is_default | required_extra_specs                 | optional_extra_specs    |
+--------------------------------------+-----------------------+------------+------------+--------------------------------------+-------------------------+
| 3e54c8a2-1e50-455e-89a0-96bb52876c35 | default_share_hitachi | public     | -          | driver_handles_share_servers : False | snapshot_support : True |
+--------------------------------------+-----------------------+------------+------------+--------------------------------------+-------------------------+

Create a NFS share using the HNAS back end:

manila create NFS 1 \
    --name mysharehnas \
    --description "My Manila share" \
    --share-type default_share_hitachi

Verify Operation

$ manila list

+--------------------------------------+----------------+------+-------------+-----------+-----------+-----------------------+-------------------------+-------------------+
| ID                                   | Name           | Size | Share Proto | Status    | Is Public | Share Type Name       | Host                    | Availability Zone |
+--------------------------------------+----------------+------+-------------+-----------+-----------+-----------------------+-------------------------+-------------------+
| 721c0a6d-eea6-41af-8c10-72cd98985203 | mysharehnas    | 1    | NFS         | available | False     | default_share_hitachi | control@hnas1#HNAS1     | nova              |
+--------------------------------------+----------------+------+-------------+-----------+-----------+-----------------------+-------------------------+-------------------+

$ manila show mysharehnas

+-----------------------------+-----------------------------------------------------------------+
| Property                    | Value                                                           |
+-----------------------------+-----------------------------------------------------------------+
| status                      | available                                                       |
| share_type_name             | default_share_hitachi                                           |
| description                 | My Manila share                                                 |
| availability_zone           | nova                                                            |
| share_network_id            | None                                                            |
| export_locations            |                                                                 |
|                             | path = 172.24.53.1:/shares/45ed6670-688b-4cf0-bfe7-34956648fb84 |
|                             | preferred = False                                               |
|                             | is_admin_only = False                                           |
|                             | id = e81e716f-f1bd-47b2-8a56-2c2f9e33a98e                       |
|                             | share_instance_id = 45ed6670-688b-4cf0-bfe7-34956648fb84        |
| share_server_id             | None                                                            |
| host                        | control@hnas1#HNAS1                                             |
| access_rules_status         | active                                                          |
| snapshot_id                 | None                                                            |
| is_public                   | False                                                           |
| task_state                  | None                                                            |
| snapshot_support            | True                                                            |
| id                          | 721c0a6d-eea6-41af-8c10-72cd98985203                            |
| size                        | 1                                                               |
| user_id                     | ba7f6d543713488786b4b8cb093e7873                                |
| name                        | mysharehnas                                                     |
| share_type                  | 3e54c8a2-1e50-455e-89a0-96bb52876c35                            |
| has_replicas                | False                                                           |
| replication_type            | None                                                            |
| created_at                  | 2016-10-14T14:50:47.000000                                      |
| share_proto                 | NFS                                                             |
| consistency_group_id        | None                                                            |
| source_cgsnapshot_member_id | None                                                            |
| project_id                  | c3810d8bcc3346d0bdc8100b09abbbf1                                |
| metadata                    | {}                                                              |
+-----------------------------+-----------------------------------------------------------------+

Configure multiple back ends

An administrator can configure an instance of Manila to provision shares from one or more back ends. Each back end leverages an instance of a vendor-specific implementation of the Manila driver API.

The name of the back end is declared as a configuration option share_backend_name within a particular configuration stanza that contains the related configuration options for that back end.

So, in the case of an multiple back ends deployment, it is necessary to change the default share backends before deployment.

Modify the file /etc/kolla/config/manila.conf and add the contents:

[DEFAULT]
enabled_share_backends = generic,hnas1,hnas2

Modify the file /etc/kolla/config/manila-share.conf and add the contents:

[generic]
share_driver = manila.share.drivers.generic.GenericShareDriver
interface_driver = manila.network.linux.interface.OVSInterfaceDriver
driver_handles_share_servers = True
service_instance_password = manila
service_instance_user = manila
service_image_name = manila-service-image
share_backend_name = GENERIC

[hnas1]
share_backend_name = HNAS1
share_driver = manila.share.drivers.hitachi.hnas.driver.HitachiHNASDriver
driver_handles_share_servers = False
hitachi_hnas_ip = <hnas_ip>
hitachi_hnas_user = <user>
hitachi_hnas_password = <password>
hitachi_hnas_evs_id = <evs_id>
hitachi_hnas_evs_ip = <evs_ip>
hitachi_hnas_file_system_name = FS-Manila1

[hnas2]
share_backend_name = HNAS2
share_driver = manila.share.drivers.hitachi.hnas.driver.HitachiHNASDriver
driver_handles_share_servers = False
hitachi_hnas_ip = <hnas_ip>
hitachi_hnas_user = <user>
hitachi_hnas_password = <password>
hitachi_hnas_evs_id = <evs_id>
hitachi_hnas_evs_ip = <evs_ip>
hitachi_hnas_file_system_name = FS-Manila2

For more information about how to manage shares, see the OpenStack User Guide.

For more information about how HNAS driver works, see Hitachi NAS Platform File Services Driver for OpenStack.