323 lines
10 KiB
ReStructuredText
323 lines
10 KiB
ReStructuredText
=====================================
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CoprHD FC, iSCSI, and ScaleIO drivers
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=====================================
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CoprHD is an open source software-defined storage controller and API platform.
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It enables policy-based management and cloud automation of storage resources
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for block, object and file storage providers.
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For more details, see `CoprHD <http://coprhd.org/>`_.
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EMC ViPR Controller is the commercial offering of CoprHD. These same volume
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drivers can also be considered as EMC ViPR Controller Block Storage drivers.
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System requirements
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~~~~~~~~~~~~~~~~~~~
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CoprHD version 3.0 is required. Refer to the CoprHD documentation for
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installation and configuration instructions.
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If you are using these drivers to integrate with EMC ViPR Controller, use
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EMC ViPR Controller 3.0.
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Supported operations
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~~~~~~~~~~~~~~~~~~~~
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The following operations are supported:
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- Create, delete, attach, detach, retype, clone, and extend volumes.
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- Create, list, and delete volume snapshots.
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- Create a volume from a snapshot.
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- Copy a volume to an image.
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- Copy an image to a volume.
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- Clone a volume.
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- Extend a volume.
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- Retype a volume.
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- Get volume statistics.
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- Create, delete, and update consistency groups.
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- Create and delete consistency group snapshots.
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Driver options
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~~~~~~~~~~~~~~
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The following table contains the configuration options specific to the
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CoprHD volume driver.
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.. config-table::
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:config-target: CoprHD
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cinder.volume.drivers.coprhd.common
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cinder.volume.drivers.coprhd.scaleio
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Preparation
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~~~~~~~~~~~
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This involves setting up the CoprHD environment first and then configuring
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the CoprHD Block Storage driver.
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CoprHD
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------
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The CoprHD environment must meet specific configuration requirements to
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support the OpenStack Block Storage driver.
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- CoprHD users must be assigned a Tenant Administrator role or a Project
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Administrator role for the Project being used. CoprHD roles are configured
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by CoprHD Security Administrators. Consult the CoprHD documentation for
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details.
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- A CorprHD system administrator must execute the following configurations
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using the CoprHD UI, CoprHD API, or CoprHD CLI:
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- Create CoprHD virtual array
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- Create CoprHD virtual storage pool
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- Virtual Array designated for iSCSI driver must have an IP network created
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with appropriate IP storage ports
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- Designated tenant for use
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- Designated project for use
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.. note:: Use each back end to manage one virtual array and one virtual
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storage pool. However, the user can have multiple instances of
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CoprHD Block Storage driver, sharing the same virtual array and virtual
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storage pool.
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- A typical CoprHD virtual storage pool will have the following values
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specified:
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- Storage Type: Block
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- Provisioning Type: Thin
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- Protocol: iSCSI/Fibre Channel(FC)/ScaleIO
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- Multi-Volume Consistency: DISABLED OR ENABLED
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- Maximum Native Snapshots: A value greater than 0 allows the OpenStack user
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to take Snapshots
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CoprHD drivers - Single back end
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--------------------------------
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**cinder.conf**
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#. Modify ``/etc/cinder/cinder.conf`` by adding the following lines,
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substituting values for your environment:
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.. code-block:: ini
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[coprhd-iscsi]
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volume_driver = cinder.volume.drivers.coprhd.iscsi.EMCCoprHDISCSIDriver
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volume_backend_name = coprhd-iscsi
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coprhd_hostname = <CoprHD-Host-Name>
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coprhd_port = 4443
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coprhd_username = <username>
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coprhd_password = <password>
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coprhd_tenant = <CoprHD-Tenant-Name>
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coprhd_project = <CoprHD-Project-Name>
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coprhd_varray = <CoprHD-Virtual-Array-Name>
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coprhd_emulate_snapshot = True or False, True if the CoprHD vpool has VMAX or VPLEX as the backing storage
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#. If you use the ScaleIO back end, add the following lines:
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.. code-block:: ini
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coprhd_scaleio_rest_gateway_host = <IP or FQDN>
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coprhd_scaleio_rest_gateway_port = 443
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coprhd_scaleio_rest_server_username = <username>
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coprhd_scaleio_rest_server_password = <password>
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scaleio_verify_server_certificate = True or False
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scaleio_server_certificate_path = <path-of-certificate-for-validation>
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#. Specify the driver using the ``enabled_backends`` parameter::
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enabled_backends = coprhd-iscsi
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.. note:: To utilize the Fibre Channel driver, replace the
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``volume_driver`` line above with::
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volume_driver = cinder.volume.drivers.coprhd.fc.EMCCoprHDFCDriver
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.. note:: To utilize the ScaleIO driver, replace the ``volume_driver`` line
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above with::
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volume_driver = cinder.volume.drivers.coprhd.fc.EMCCoprHDScaleIODriver
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.. note:: Set ``coprhd_emulate_snapshot`` to True if the CoprHD vpool has
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VMAX or VPLEX as the back-end storage. For these type of back-end
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storages, when a user tries to create a snapshot, an actual volume
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gets created in the back end.
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#. Modify the ``rpc_response_timeout`` value in ``/etc/cinder/cinder.conf`` to
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at least 5 minutes. If this entry does not already exist within the
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``cinder.conf`` file, add it in the ``[DEFAULT]`` section:
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.. code-block:: ini
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[DEFAULT]
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# ...
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rpc_response_timeout = 300
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#. Now, restart the ``cinder-volume`` service.
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**Volume type creation and extra specs**
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#. Create OpenStack volume types:
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.. code-block:: console
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$ openstack volume type create <typename>
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#. Map the OpenStack volume type to the CoprHD virtual pool:
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.. code-block:: console
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$ openstack volume type set <typename> --property CoprHD:VPOOL=<CoprHD-PoolName>
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#. Map the volume type created to appropriate back-end driver:
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.. code-block:: console
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$ openstack volume type set <typename> --property volume_backend_name=<VOLUME_BACKEND_DRIVER>
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CoprHD drivers - Multiple back-ends
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-----------------------------------
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**cinder.conf**
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#. Add or modify the following entries if you are planning to use multiple
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back-end drivers:
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.. code-block:: ini
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enabled_backends = coprhddriver-iscsi,coprhddriver-fc,coprhddriver-scaleio
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#. Add the following at the end of the file:
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.. code-block:: ini
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[coprhddriver-iscsi]
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volume_driver = cinder.volume.drivers.coprhd.iscsi.EMCCoprHDISCSIDriver
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volume_backend_name = EMCCoprHDISCSIDriver
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coprhd_hostname = <CoprHD Host Name>
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coprhd_port = 4443
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coprhd_username = <username>
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coprhd_password = <password>
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coprhd_tenant = <CoprHD-Tenant-Name>
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coprhd_project = <CoprHD-Project-Name>
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coprhd_varray = <CoprHD-Virtual-Array-Name>
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[coprhddriver-fc]
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volume_driver = cinder.volume.drivers.coprhd.fc.EMCCoprHDFCDriver
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volume_backend_name = EMCCoprHDFCDriver
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coprhd_hostname = <CoprHD Host Name>
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coprhd_port = 4443
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coprhd_username = <username>
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coprhd_password = <password>
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coprhd_tenant = <CoprHD-Tenant-Name>
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coprhd_project = <CoprHD-Project-Name>
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coprhd_varray = <CoprHD-Virtual-Array-Name>
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[coprhddriver-scaleio]
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volume_driver = cinder.volume.drivers.coprhd.scaleio.EMCCoprHDScaleIODriver
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volume_backend_name = EMCCoprHDScaleIODriver
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coprhd_hostname = <CoprHD Host Name>
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coprhd_port = 4443
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coprhd_username = <username>
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coprhd_password = <password>
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coprhd_tenant = <CoprHD-Tenant-Name>
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coprhd_project = <CoprHD-Project-Name>
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coprhd_varray = <CoprHD-Virtual-Array-Name>
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coprhd_scaleio_rest_gateway_host = <ScaleIO Rest Gateway>
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coprhd_scaleio_rest_gateway_port = 443
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coprhd_scaleio_rest_server_username = <rest gateway username>
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coprhd_scaleio_rest_server_password = <rest gateway password>
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scaleio_verify_server_certificate = True or False
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scaleio_server_certificate_path = <certificate path>
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#. Restart the ``cinder-volume`` service.
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**Volume type creation and extra specs**
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Setup the ``volume-types`` and ``volume-type`` to ``volume-backend``
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association:
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.. code-block:: console
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$ openstack volume type create "CoprHD High Performance ISCSI"
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$ openstack volume type set "CoprHD High Performance ISCSI" --property CoprHD:VPOOL="High Performance ISCSI"
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$ openstack volume type set "CoprHD High Performance ISCSI" --property volume_backend_name= EMCCoprHDISCSIDriver
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$ openstack volume type create "CoprHD High Performance FC"
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$ openstack volume type set "CoprHD High Performance FC" --property CoprHD:VPOOL="High Performance FC"
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$ openstack volume type set "CoprHD High Performance FC" --property volume_backend_name= EMCCoprHDFCDriver
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$ openstack volume type create "CoprHD performance SIO"
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$ openstack volume type set "CoprHD performance SIO" --property CoprHD:VPOOL="Scaled Perf"
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$ openstack volume type set "CoprHD performance SIO" --property volume_backend_name= EMCCoprHDScaleIODriver
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ISCSI driver notes
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~~~~~~~~~~~~~~~~~~
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* The compute host must be added to the CoprHD along with its ISCSI
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initiator.
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* The ISCSI initiator must be associated with IP network on the CoprHD.
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FC driver notes
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~~~~~~~~~~~~~~~
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* The compute host must be attached to a VSAN or fabric discovered
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by CoprHD.
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* There is no need to perform any SAN zoning operations. CoprHD will perform
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the necessary operations automatically as part of the provisioning process.
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ScaleIO driver notes
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~~~~~~~~~~~~~~~~~~~~
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* Install the ScaleIO SDC on the compute host.
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* The compute host must be added as the SDC to the ScaleIO MDS
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using the below commands::
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/opt/emc/scaleio/sdc/bin/drv_cfg --add_mdm --ip List of MDM IPs
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(starting with primary MDM and separated by comma)
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Example:
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/opt/emc/scaleio/sdc/bin/drv_cfg --add_mdm --ip
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10.247.78.45,10.247.78.46,10.247.78.47
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This step has to be repeated whenever the SDC (compute host in this case)
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is rebooted.
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Consistency group configuration
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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To enable the support of consistency group and consistency group snapshot
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operations, use a text editor to edit the file ``/etc/cinder/policy.json`` and
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change the values of the below fields as specified. Upon editing the file,
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restart the ``c-api`` service::
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"consistencygroup:create" : "",
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"consistencygroup:delete": "",
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"consistencygroup:get": "",
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"consistencygroup:get_all": "",
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"consistencygroup:update": "",
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"consistencygroup:create_cgsnapshot" : "",
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"consistencygroup:delete_cgsnapshot": "",
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"consistencygroup:get_cgsnapshot": "",
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"consistencygroup:get_all_cgsnapshots": "",
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Names of resources in back-end storage
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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All the resources like volume, consistency group, snapshot, and consistency
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group snapshot will use the display name in OpenStack for naming in the
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back-end storage.
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