The cinder.volume.drivers.zfssa.zfssaiscsi Module

ZFS Storage Appliance Cinder Volume Driver

class MigrateVolumeCleanUp(name=None, provides=None, requires=None, auto_extract=True, rebind=None, inject=None)

Bases: taskflow.task.Task

execute(driver, volume, tgt_zfssa)
class MigrateVolumeCreateAction(name=None, provides=None, requires=None, auto_extract=True, rebind=None, inject=None)

Bases: taskflow.task.Task

execute(src_zfssa, volume, src_pool, src_project, target, tgt_pool)
revert(src_zfssa, **kwargs)
class MigrateVolumeInit(name=None, provides=None, requires=None, auto_extract=True, rebind=None, inject=None)

Bases: taskflow.task.Task

execute(src_zfssa, volume, src_pool, src_project)
revert(src_zfssa, volume, src_pool, src_project, **kwargs)
class MigrateVolumeMoveVol(name=None, provides=None, requires=None, auto_extract=True, rebind=None, inject=None)

Bases: taskflow.task.Task

execute(tgt_zfssa, tgt_pool, tgt_project, action_id, volume)
revert(tgt_zfssa, tgt_pool, tgt_project, action_id, volume, **kwargs)
class MigrateVolumeSendReplUpdate(name=None, provides=None, requires=None, auto_extract=True, rebind=None, inject=None)

Bases: taskflow.task.Task

execute(src_zfssa, action_id)
class MigrateVolumeSeverRepl(name=None, provides=None, requires=None, auto_extract=True, rebind=None, inject=None)

Bases: taskflow.task.Task

execute(tgt_zfssa, src_asn, action_id, driver)
class ZFSSAISCSIDriver(*args, **kwargs)

Bases: cinder.volume.driver.ISCSIDriver

ZFSSA Cinder iSCSI volume driver.

Version history: 1.0.1:

Backend enabled volume migration. Local cache feature.
VERSION = '1.0.1'
backup_volume(context, backup, backup_service)

Not implemented.

check_for_setup_error()

Check that driver can login.

Check also pool, project, initiators, initiatorgroup, target and targetgroup.

clone_image(context, volume, image_location, image_meta, image_service)

Create a volume efficiently from an existing image.

Verify the image ID being used:

(1) If there is no existing cache volume, create one and transfer image data to it. Take a snapshot.

(2) If a cache volume already exists, verify if it is either alternated or updated. If so try to remove it, raise exception if removal fails. Create a new cache volume as in (1).

Clone a volume from the cache volume and returns it to Cinder.

create_cloned_volume(volume, src_vref)

Create a clone of the specified volume.

create_export(context, volume, connector)
create_snapshot(snapshot)

Creates a snapshot of a volume.

Snapshot name: snapshot[‘name’] Volume name: snapshot[‘volume_name’]

create_volume(volume)

Create a volume on ZFSSA.

create_volume_from_snapshot(volume, snapshot)

Creates a volume from a snapshot - clone a snapshot.

delete_snapshot(snapshot)

Deletes a snapshot.

delete_volume(volume)

Deletes a volume with the given volume[‘name’].

do_setup(context)

Setup - create multiple elements.

Project, initiators, initiatorgroup, target and targetgroup.

ensure_export(context, volume)
extend_volume(volume, new_size)

Driver entry point to extent volume size.

get_volume_stats(refresh=False)

Get volume status.

If ‘refresh’ is True, run update the stats first.

initialize_connection(volume, connector)
local_path(volume)

Not implemented.

migrate_volume(ctxt, volume, host)
protocol = 'iSCSI'
remove_export(context, volume)
restore_backup(context, backup, volume, backup_service)

Not implemented.

terminate_connection(volume, connector, **kwargs)

Driver entry point to terminate a connection for a volume.

update_migrated_volume(ctxt, volume, new_volume, original_volume_status)

Return model update for migrated volume.

Parameters:
  • volume – The original volume that was migrated to this backend
  • new_volume – The migration volume object that was created on this backend as part of the migration process
  • original_volume_status – The status of the original volume

:return model_update to update DB with any needed changes

factory_zfssa()