The cinder.volume.drivers.dell_emc.vnx.driver Module

The cinder.volume.drivers.dell_emc.vnx.driver Module

Cinder Driver for EMC VNX based on CLI.

class VNXDriver(*args, **kwargs)

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

Dell EMC Cinder Driver for VNX using CLI.

Version history:
    1.0.0 - Initial driver
    2.0.0 - Thick/thin provisioning, robust enhancement
    3.0.0 - Array-based Backend Support, FC Basic Support,
            Target Port Selection for MPIO,
            Initiator Auto Registration,
            Storage Group Auto Deletion,
            Multiple Authentication Type Support,
            Storage-Assisted Volume Migration,
            SP Toggle for HA
    3.0.1 - Security File Support
    4.0.0 - Advance LUN Features (Compression Support,
            Deduplication Support, FAST VP Support,
            FAST Cache Support), Storage-assisted Retype,
            External Volume Management, Read-only Volume,
            FC Auto Zoning
    4.1.0 - Consistency group support
    5.0.0 - Performance enhancement, LUN Number Threshold Support,
            Initiator Auto Deregistration,
            Force Deleting LUN in Storage Groups,
            robust enhancement
    5.1.0 - iSCSI multipath enhancement
    5.2.0 - Pool-aware scheduler support
    5.3.0 - Consistency group modification support
    6.0.0 - Over subscription support
            Create consistency group from cgsnapshot support
            Multiple pools support enhancement
            Manage/unmanage volume revise
            White list target ports support
            Snap copy support
            Support efficient non-disruptive backup
    7.0.0 - Clone consistency group support
            Replication v2 support(managed)
            Configurable migration rate support
    8.0.0 - New VNX Cinder driver
    9.0.0 - Use asynchronous migration for cloning
    10.0.0 - Extend SMP size before async migration when cloning from an
             image cache volume
    10.1.0 - Add QoS support
    10.2.0 - Add replication group support
    11.0.0 - Fix failure of migration during cloning
VERSION = '11.00.00'
check_for_export(context, volume_id)

Make sure volume is exported.

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 a snapshot mount point for snapshot.

create_group(*args, **kwargs)

Creates a group.

create_group_from_src(*args, **kwargs)

Creates a group from source.

create_group_snapshot(*args, **kwargs)

Creates a group_snapshot.


Creates a snapshot.


Creates a volume.

create_volume_from_snapshot(volume, snapshot)

Creates a volume from a snapshot.

delete_group(*args, **kwargs)

Deletes a group.

delete_group_snapshot(*args, **kwargs)

Deletes a group_snapshot.


Deletes a snapshot.


Deletes a volume.

disable_replication(context, group, volumes)
enable_replication(context, group, volumes)
ensure_export(context, volume)

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

extend_volume(volume, new_size)

Extend a volume.

failover_host(context, volumes, secondary_id=None, groups=None)

Fail-overs volumes from primary device to secondary.

failover_replication(context, group, volumes, secondary_backend_id)

Returns the pool name of a volume.

get_replication_error_status(context, groups)

Get volume stats.

Parameters:refresh – True to get updated data
initialize_connection(*args, **kwargs)
initialize_connection_snapshot(snapshot, connector, **kwargs)

Allows connection to snapshot.

manage_existing(volume, existing_ref)

Manage an existing lun in the array.

The lun should be in a manageable pool backend, otherwise error would return. Rename the backend storage object so that it matches the, volume[‘name’] which is how drivers traditionally map between a cinder volume and the associated backend storage object.

    'source-id':<lun id in VNX>


    'source-name':<lun name in VNX>
manage_existing_get_size(volume, existing_ref)

Return size of volume to be managed by manage_existing.

migrate_volume(ctxt, volume, host)

Migrate volume via EMC migration functionality.

remove_export(context, volume)

Driver entry point to remove an export for a volume.

remove_export_snapshot(context, snapshot)

Removes snapshot mount point for snapshot.

retype(ctxt, volume, new_type, diff, host)

Convert the volume to be of the new type.

terminate_connection(*args, **kwargs)
terminate_connection_snapshot(snapshot, connector, **kwargs)

Disallows connection to snapshot.


Unmanages a volume.

update_group(*args, **kwargs)

Updates a group.

update_migrated_volume(context, volume, new_volume, original_volume_status=None)

Returns model update for migrated volume.


Retrieve stats info from volume group.

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