The cinder.volume.drivers.dell_emc.unity.driver Module¶

Cinder Driver for Unity

class UnityDriver(*args, **kwargs)¶

Bases: cinder.volume.driver.ManageableVD, cinder.volume.driver.ManageableSnapshotsVD, cinder.volume.driver.BaseVD

Unity Driver.

Version history:

1.0.0 - Initial version 2.0.0 - Add thin clone support 3.0.0 - Add IPv6 support 3.1.0 - Support revert to snapshot API

CI_WIKI_NAME = 'EMC_UNITY_CI'¶

VENDOR = 'Dell EMC'¶

VERSION = '03.01.00'¶

backup_use_temp_snapshot()¶

Get the configured setting for backup from snapshot.

If an inheriting driver does not support this operation, the driver should override this method to return false and log a warning letting the administrator know they have configured something that cannot be done.

check_for_export(context, volume_id)¶

Make sure volume is exported.

check_for_setup_error()¶

create_cloned_volume(volume, src_vref)¶

Creates a cloned volume.

create_export(context, volume, connector)¶

Driver entry point to get the export info for a new volume.

create_export_snapshot(context, snapshot, connector)¶

Creates the mount point of the snapshot for backup.

Not necessary to create on Unity.

create_snapshot(snapshot)¶

Creates a snapshot.

create_volume(volume)¶

Creates a volume.

create_volume_from_snapshot(volume, snapshot)¶

Creates a volume from a snapshot.

delete_snapshot(snapshot)¶

Deletes a snapshot.

delete_volume(volume)¶

Deletes a volume.

do_setup(context)¶

Any initialization the volume driver does while starting.

ensure_export(context, volume)¶

Driver entry point to get the export info for an existing volume.

extend_volume(volume, new_size)¶

Extend a volume.

get_pool(volume)¶

Returns the pool name of a volume.

get_volume_stats(refresh=False)¶

Get volume stats.

Parameters:	refresh – True to get updated data

initialize_connection(*args, **kwargs)¶

initialize_connection_snapshot(snapshot, connector, **kwargs)¶

Allow connection to connector and return connection info.

Parameters:	snapshot – The snapshot to be attached connector – Dictionary containing information about what is being connected to.
Returns conn_info:
	A dictionary of connection information. This can optionally include a “initiator_updates” field.

The “initiator_updates” field must be a dictionary containing a “set_values” and/or “remove_values” field. The “set_values” field must be a dictionary of key-value pairs to be set/updated in the db. The “remove_values” field must be a list of keys, previously set with “set_values”, that will be deleted from the db.

manage_existing(volume, existing_ref)¶

Manages an existing LUN in the array.

Parameters:	volume – the mapping cinder volume of the Unity LUN. existing_ref – the Unity LUN info.

manage_existing_get_size(volume, existing_ref)¶

Returns size of volume to be managed by manage_existing.

remove_export(context, volume)¶

Driver entry point to remove an export for a volume.

remove_export_snapshot(context, snapshot)¶

Deletes the mount point the snapshot for backup.

Not necessary to create on Unity.

revert_to_snapshot(context, volume, snapshot)¶

Reverts a volume to a snapshot.

terminate_connection(*args, **kwargs)¶

terminate_connection_snapshot(snapshot, connector, **kwargs)¶

Disallow connection from connector.

unmanage(volume)¶

Unmanages a volume.

update_volume_stats()¶

Retrieve stats info from volume group.