openstack/openstack-manuals
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openstack-manuals/doc/admin-guide-cloud/source/shared_file_systems_share_networks.rst
Jane Zadorozhna 61c744c2c5 Cloud Admin Guide: Shared File Systems updated information 
After the technical review the Shared File Systems service
documentation in the Cloud Admin Guide needs to be updated.

Read and fixed some typos and incorrect English constructions in
the sentences of all sections. Fixed indentations in code, tip
and note directives. Also updated the following info:
* Removed references to the Generic driver, because it is default
  only on Devstack. And even for Devstack the default driver is going
  to be changed.
* Divided 'Create share' subsection on 3 subsections: added general
  concepts and info of creating a share in 2 back end modes.
* Added info that with StandaloneNetworkPlugin the Shared File Systems
  service can be configured without Networking and Compute services.
* Added export paths for GlusterFS and HDFS.
* Added notes what driver in what mode you use in examples and a noted
  what modes exist and can be configured.
* Added a console sample for "manila rate-limits" command and described
  how to add API rate limits.
* Removed information and samples about a quota classes because they are
  not used in the Shared File Systems service and are not working
  properly for the current moment (in Liberty release).
* Added second purpose of the share types.
* Removed '/etc/manila/' in manila.conf file, because its path can be
  customly changed.
* Said that consistency groups is the experimental part of API starting
  with Liberty release.
* Updated a sample in shared_file_systems_multi_backend.html file.
* Removed 'Storage' from the Shared File Systems service official name
  according to [1] document.

[1] http://git.openstack.org/cgit/openstack/governance/tree/reference/projects.yaml

Change-Id: I0530ea3c6bf74311e271cdabca26cd10afcddc92
Closes-Bug: #1508457
2015-10-27 09:43:46 +00:00

6.6 KiB
Raw Blame History

Share networks

Share network is an entity that encapsulates interaction with the OpenStack Networking service. If the share driver that you selected runs in a mode requiring Networking service interaction, specify the share network when creating a share network.

How to create share network

List networks in a tenant, run:

$ neutron net-list
+--------------+---------+---------------------------------------+
| id           | name    | subnets                               |
+--------------+---------+---------------------------------------+
| bee7411d-... | public  | 884a6564-0f11-... 2001:db8::/64       |
|              |         | e6da81fa-5d5f-... 172.24.4.0/24       |
| 5ed5a854-... | private | 74dcfb5a-b4d7-... 10.0.0.0/24         |
|              |         | cc297be2-5213-... fd7d:177d:a48b::/64 |
+--------------+---------+---------------------------------------+

A share network stores network information that share servers can use where shares are hosted. You can associate a share with a single share network. When you create or update a share, you can optionally specify the ID of a share network through which instances can access the share.

When you create a share network, you can specify only one type of network:

  • OpenStack Networking (neutron). Specify a network ID and subnet ID. In this case manila.network.nova_network_plugin.NeutronNetworkPlugin will be used.
  • Legacy networking (nova-network). Specify a network ID. In this case manila.network.nova_network_plugin.NoveNetworkPlugin will be used.

For more information about supported plug-ins for share networks, see shared_file_systems_network_plugins.

A share network has these attributes:

  • The IP block in Classless Inter-Domain Routing (CIDR) notation from which to allocate the network.
  • The IP version of the network.
  • The network type, which is vlan, vxlan, gre, or flat.

If the network uses segmentation, a segmentation identifier. For example, VLAN, VXLAN, and GRE networks use segmentation.

To create a share network with private network and subnetwork, run:

$ manila share-network-create --neutron-net-id 5ed5a854-21dc-4ed3-870a-117b7064eb21 --neutron-subnet-id 74dcfb5a-b4d7-4855-86f5-a669729428dc --name my_share_net --description "My first share network"
+-------------------+--------------------------------------+
| Property          | Value                                |
+-------------------+--------------------------------------+
| name              | my_share_net                         |
| segmentation_id   | None                                 |
| created_at        | 2015-09-24T12:06:32.602174           |
| neutron_subnet_id | 74dcfb5a-b4d7-4855-86f5-a669729428dc |
| updated_at        | None                                 |
| network_type      | None                                 |
| neutron_net_id    | 5ed5a854-21dc-4ed3-870a-117b7064eb21 |
| ip_version        | None                                 |
| nova_net_id       | None                                 |
| cidr              | None                                 |
| project_id        | 20787a7ba11946adad976463b57d8a2f     |
| id                | 5c3cbabb-f4da-465f-bc7f-fadbe047b85a |
| description       | My first share network               |
+-------------------+--------------------------------------+

The segmentation_id, cidr, ip_version, and network_type share network attributes are automatically set to the values determined by the network provider.

Check network list, run:

$ manila share-network-list
+--------------------------------------+--------------+
| id                                   | name         |
+--------------------------------------+--------------+
| 5c3cbabb-f4da-465f-bc7f-fadbe047b85a | my_share_net |
+--------------------------------------+--------------+

If you configured the Generic driver with driver_handles_share_servers = True (with the share servers) and had already some operations in the Shared File Systems service, you can see manila_service_network in the neutron list of networks. This network was created by Generic driver for inner usage.

$ neutron net-list
+--------------+------------------------+------------------------------------+
| id           | name                   | subnets                            |
+--------------+------------------------+------------------------------------+
| 3b5a629a-e...| manila_service_network | 4f366100-50... 10.254.0.0/28       |
| bee7411d-d...| public                 | 884a6564-01... 2001:db8::/64       |
|              |                        | e6da81fa-55... 172.24.4.0/24       |
| 5ed5a854-2...| private                | 74dcfb5a-bd... 10.0.0.0/24         |
|              |                        | cc297be2-51... fd7d:177d:a48b::/64 |
+--------------+------------------------+------------------------------------+

You also can see detailed information about the share network including network_type, segmentation_id fields:

$ neutron net-show manila_service_network
+---------------------------+--------------------------------------+
| Field                     | Value                                |
+---------------------------+--------------------------------------+
| admin_state_up            | True                                 |
| id                        | 3b5a629a-e7a1-46a3-afb2-ab666fb884bc |
| mtu                       | 0                                    |
| name                      | manila_service_network               |
| port_security_enabled     | True                                 |
| provider:network_type     | vxlan                                |
| provider:physical_network |                                      |
| provider:segmentation_id  | 1068                                 |
| router:external           | False                                |
| shared                    | False                                |
| status                    | ACTIVE                               |
| subnets                   | 4f366100-5108-4fa2-b5b1-989a121c1403 |
| tenant_id                 | 24c6491074e942309a908c674606f598     |
+---------------------------+--------------------------------------+

You also can add and remove the security services to the share network. For details, see shared_file_systems_security_services.