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.. _cinder-guide-hnas:
========================================================
Hitachi NAS Platform iSCSI and NFS drives for OpenStack
========================================================
Overview
The Block Storage service provides persistent block storage resources that
Compute instances can consume. This includes secondary attached storage similar
to the Amazon Elastic Block Storage (EBS) offering. In addition, you can write
images to a Block Storage device for Compute to use as a bootable persistent
instance.
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.
- You must set an iSCSI domain to EVS
Supported shared file systems and operations
--------------------------------------------
The NFS and iSCSI drivers support these operations:
- Create, delete, attach, and detach volumes.
- Create, list, and delete volume snapshots.
- Create a volume from a snapshot.
- Copy an image to a volume.
- Copy a volume to an image.
- Clone a volume.
- Extend a volume.
- Get volume statistics.
- Manage and unmanage a volume.
- Manage and unmanage snapshots (HNAS NFS only).
Configuration example for Hitachi NAS Platform iSCSI and NFS
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
iSCSI backend
-------------
Enable cinder hnas backend iscsi in ``/etc/kolla/globals.yml``
enable_cinder_backend_hnas_iscsi: "yes"
Create or modify the file ``/etc/kolla/config/cinder.conf`` and add the
contents:
.. path /etc/kolla/config/cinder.conf
.. code-block:: ini
[DEFAULT]
enabled_backends = hnas-iscsi
[hnas-iscsi]
volume_driver = cinder.volume.drivers.hitachi.hnas_iscsi.HNASISCSIDriver
volume_iscsi_backend = hnas_iscsi_backend
hnas_iscsi_username = supervisor
hnas_iscsi_mgmt_ip0 = <hnas_ip>
hnas_chap_enabled = True
hnas_iscsi_svc0_volume_type = iscsi_gold
hnas_iscsi_svc0_hdp = FS-Baremetal1
hnas_iscsi_svc0_iscsi_ip = <svc0_ip>
Then set password for the backend in ``/etc/kolla/passwords.yml``:
.. code-block:: yaml
hnas_iscsi_password: supervisor
NFS backend
-----------
Enable cinder hnas backend nfs in ``/etc/kolla/globals.yml``
enable_cinder_backend_hnas_nfs: "yes"
Create or modify the file ``/etc/kolla/config/cinder.conf`` and
add the contents:
.. path /etc/kolla/config/cinder.conf
.. code-block:: ini
[DEFAULT]
enabled_backends = hnas-nfs
[hnas-nfs]
volume_driver = cinder.volume.drivers.hitachi.hnas_nfs.HNASNFSDriver
volume_nfs_backend = hnas_nfs_backend
hnas_nfs_username = supervisor
hnas_nfs_mgmt_ip0 = <hnas_ip>
hnas_chap_enabled = True
hnas_nfs_svc0_volume_type = nfs_gold
hnas_nfs_svc0_hdp = <svc0_ip>/<export_name>
Then set password for the backend in ``/etc/kolla/passwords.yml``:
.. code-block:: yaml
hnas_nfs_password: supervisor
Configuration on Kolla deployment
---------------------------------
Enable Shared File Systems service and HNAS driver in
``/etc/kolla/globals.yml``
.. code-block:: yaml
enable_cinder: "yes"
Configuration on HNAS
---------------------
Create the data HNAS network in Kolla OpenStack:
List the available tenants:
.. code-block:: console
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:
.. code-block:: console
neutron net-create --tenant-id <SERVICE_ID> hnas_network \
--provider:physical_network=physnet2 --provider:network_type=flat
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:
.. code-block:: console
neutron subnet-create --tenant-id <SERVICE_ID> --gateway <GATEWAY> \
--name hnas_subnet <NETWORK_ID> <SUBNET_CIDR>
Add the subnet interface to a router, providing the router ID and subnet
ID created before:
.. code-block:: console
neutron router-interface-add <ROUTER_ID> <SUBNET_ID>
Create volume
Create a non-bootable volume.
.. code-block:: console
openstack volume create --size 1 my-volume
Verify Operation.
.. code-block:: console
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cinder show my-volume
+--------------------------------+--------------------------------------+
| Property | Value |
+--------------------------------+--------------------------------------+
| attachments | [] |
| availability_zone | nova |
| bootable | false |
| consistencygroup_id | None |
| created_at | 2017-01-17T19:02:45.000000 |
| description | None |
| encrypted | False |
| id | 4f5b8ae8-9781-411e-8ced-de616ae64cfd |
| metadata | {} |
| migration_status | None |
| multiattach | False |
| name | my-volume |
| os-vol-host-attr:host | compute@hnas-iscsi#iscsi_gold |
| os-vol-mig-status-attr:migstat | None |
| os-vol-mig-status-attr:name_id | None |
| os-vol-tenant-attr:tenant_id | 16def9176bc64bd283d419ac2651e299 |
| replication_status | disabled |
| size | 1 |
| snapshot_id | None |
| source_volid | None |
| status | available |
| updated_at | 2017-01-17T19:02:46.000000 |
| user_id | fb318b96929c41c6949360c4ccdbf8c0 |
| volume_type | None |
+--------------------------------+--------------------------------------+
nova volume-attach INSTANCE_ID VOLUME_ID auto
+----------+--------------------------------------+
| Property | Value |
+----------+--------------------------------------+
| device | /dev/vdc |
| id | 4f5b8ae8-9781-411e-8ced-de616ae64cfd |
| serverId | 3bf5e176-be05-4634-8cbd-e5fe491f5f9c |
| volumeId | 4f5b8ae8-9781-411e-8ced-de616ae64cfd |
+----------+--------------------------------------+
openstack volume list
+--------------------------------------+---------------+----------------+------+-------------------------------------------+
| ID | Display Name | Status | Size | Attached to |
+--------------------------------------+---------------+----------------+------+-------------------------------------------+
| 4f5b8ae8-9781-411e-8ced-de616ae64cfd | my-volume | in-use | 1 | Attached to private-instance on /dev/vdb |
+--------------------------------------+---------------+----------------+------+-------------------------------------------+
For more information about how to manage volumes, see the
`Manage volumes
<https://docs.openstack.org/cinder/latest/cli/cli-manage-volumes.html>`__.
For more information about how HNAS driver works, see
`Hitachi NAS Platform iSCSI and NFS drives for OpenStack
<https://docs.openstack.org/newton/config-reference/block-storage/drivers/hds-hnas-driver.html>`__.