The cinder.volume.drivers.netapp.eseries.client Module

Client classes for web services.

class RestClient(scheme, host, port, service_path, username, password, **kwargs)

Bases: cinder.volume.drivers.netapp.eseries.client.WebserviceClient

REST client specific to e-series storage service.

ASUP_VALID_VERSION = (1, 52, 9000, 3)

CHAP_VALID_VERSION = (1, 53, 9010, 15)

ID = ‘id’

NAME = ‘label’

RESOURCE_PATHS = {‘persistent-store’: ‘/storage-systems/{system-id}/persistent-records/{key}’, ‘cgroup_members’: ‘/storage-systems/{system-id}/consistency-groups/{object-id}/member-volumes’, ‘snapshot_group’: ‘/storage-systems/{system-id}/snapshot-groups/{object-id}’, ‘cgroup_snapshot’: ‘/storage-systems/{system-id}/consistency-groups/{object-id}/snapshots/{seq-num}’, ‘persistent-stores’: ‘/storage-systems/{system-id}/persistent-records/’, ‘snapshot_image’: ‘/storage-systems/{system-id}/snapshot-images/{object-id}’, ‘pool_operation_progress’: ‘/storage-systems/{system-id}/storage-pools/{object-id}/action-progress’, ‘cgroups’: ‘/storage-systems/{system-id}/consistency-groups’, ‘snapshot_volume’: ‘/storage-systems/{system-id}/snapshot-volumes/{object-id}’, ‘cgroup_snapshot_views’: ‘/storage-systems/{system-id}/consistency-groups/{object-id}/views/{view-id}/views’, ‘ssc_volumes’: ‘/storage-systems/{system-id}/ssc/volumes’, ‘snapshot_groups’: ‘/storage-systems/{system-id}/snapshot-groups’, ‘volumes’: ‘/storage-systems/{system-id}/volumes’, ‘snapshot_images’: ‘/storage-systems/{system-id}/snapshot-images’, ‘volume’: ‘/storage-systems/{system-id}/volumes/{object-id}’, ‘cgroup_cgsnap_views’: ‘/storage-systems/{system-id}/consistency-groups/{object-id}/views/’, ‘thin_volume_expand’: ‘/storage-systems/{system-id}/thin-volumes/{object-id}/expand’, ‘snapshot_volumes’: ‘/storage-systems/{system-id}/snapshot-volumes’, ‘cgroup_member’: ‘/storage-systems/{system-id}/consistency-groups/{object-id}/member-volumes/{vol-id}’, ‘volume_expand’: ‘/storage-systems/{system-id}/volumes/{object-id}/expand’, ‘ssc_volume’: ‘/storage-systems/{system-id}/ssc/volumes/{object-id}’, ‘cgroup_snapshots’: ‘/storage-systems/{system-id}/consistency-groups/{object-id}/snapshots’, ‘cgroup_cgsnap_view’: ‘/storage-systems/{system-id}/consistency-groups/{object-id}/views/{seq-num}’, ‘cgroup_snapshots_by_seq’: ‘/storage-systems/{system-id}/consistency-groups/{object-id}/snapshots/{seq-num}’, ‘cgroup’: ‘/storage-systems/{system-id}/consistency-groups/{object-id}’}

REST_1_3_VERSION = (1, 53, 9000, 1)

REST_1_4_VERSIONS = ((1, 54, 9000, 1), (1, 54, 9090, 0))

SSC_VALID_VERSIONS = ((1, 53, 9000, 1), (1, 53, 9010, 17))

WWN = ‘worldWideName’

add_autosupport_data(key, data)

Register driver statistics via autosupport log.

add_consistency_group_member(volume_id, cg_id, repo_percent=20.0)

Add a volume to a consistency group

:param volume_id the eseries volume id :param cg_id: the eseries cg id :param repo_percent: percentage capacity of the volume to use for capacity of the copy-on-write repository

control_volume_copy_job(obj_id, control=’start’)

Controls a volume copy job.

create_cg_snapshot_view(cg_id, name, snap_id)

Define a snapshot view for the cgsnapshot

In order to define a snapshot view for a snapshot defined under a consistency group, the view must be defined at the cgsnapshot level.

Parameters:

• cg_id – E-Series cg identifier
• name – the label for the view
• snap_id – E-Series snapshot view to locate

Raises:

NetAppDriverException – if the snapshot view cannot be located for the snapshot identified by snap_id

Returns:

snapshot view for snapshot identified by snap_id

create_consistency_group(name, warn_at_percent_full=75, rollback_priority=’medium’, full_policy=’failbasewrites’)

Define a new consistency group

create_consistency_group_snapshot(cg_id)

Define a consistency group snapshot

create_host(label, host_type, ports=None, group_id=None)

Creates host on array.

create_host_group(label)

Creates a host group on the array.

create_host_with_ports(label, host_type, port_ids, port_type=’iscsi’, group_id=None)

Creates host on array with given port information.

create_snapshot_group(label, object_id, storage_pool_id=None, repo_percent=99, warn_thres=99, auto_del_limit=0, full_policy=’failbasewrites’)

Creates snapshot group on array.

create_snapshot_image(group_id)

Creates snapshot image in snapshot group.

create_snapshot_volume(image_id, label, base_object_id, storage_pool_id=None, repo_percent=99, full_thres=99, view_mode=’readOnly’)

Creates snapshot volume.

create_volume(pool, label, size, unit=’gb’, seg_size=0, read_cache=None, write_cache=None, flash_cache=None, data_assurance=None, thin_provision=False)

Creates a volume on array with the configured attributes

Note: if read_cache, write_cache, flash_cache, or data_assurance are not provided, the default will be utilized by the Webservice.

Parameters:

• pool – The pool unique identifier
• label – The unqiue label for the volume
• size – The capacity in units
• unit – The unit for capacity
• seg_size – The segment size for the volume, expressed in KB. Default will allow the Webservice to choose.
• read_cache – If true, enable read caching, if false, explicitly disable it.
• write_cache – If true, enable write caching, if false, explicitly disable it.
• flash_cache – If true, add the volume to a Flash Cache
• data_assurance – If true, enable the Data Assurance capability

Returns:

The created volume

create_volume_copy_job(src_id, tgt_id, priority=’priority4’, tgt_wrt_protected=’true’)

Creates a volume copy job.

create_volume_mapping(object_id, target_id, lun)

Creates volume mapping on array.

delete_cg_snapshot_view(cg_id, view_id)

delete_consistency_group(object_id)

delete_consistency_group_snapshot(cg_id, seq_num)

Define a consistency group snapshot

delete_snapshot_group(object_id)

Deletes given snapshot group from array.

delete_snapshot_image(object_id)

Deletes given snapshot image in snapshot group.

delete_snapshot_volume(object_id)

Deletes given snapshot volume.

delete_vol_copy_job(object_id)

Delete volume copy job.

delete_volume(object_id)

Deletes given volume from array.

delete_volume_mapping(map_object_id)

Deletes given volume mapping from array.

expand_volume(object_id, new_capacity, thin_provisioned, capacity_unit=’gb’)

Increase the capacity of a volume

get_asup_info()

Returns a dictionary of relevant autosupport information.

Currently returned fields are: model – E-series model name serial_numbers – Serial number for each controller firmware_version – Version of active firmware chassis_sn – Serial number for whole chassis

get_consistency_group(object_id)

Retrieve the consistency group identified by object_id

get_consistency_group_snapshots(cg_id)

Retrieve all snapshots defined for a consistency group

get_eseries_api_info(verify=False)

Get E-Series API information from the array.

get_host(host_ref)

Gets a single host from the array.

get_host_group(host_group_ref)

Gets a single host group from the array.

get_host_group_by_name(name)

Gets a single host group by name from the array.

get_pool_operation_progress(object_id)

Retrieve the progress long-running operations on a storage pool

Example:

[
    {
        "volumeRef": "3232....", # Volume being referenced
        "progressPercentage": 0, # Approxmate percent complete
        "estimatedTimeToCompletion": 0, # ETA in minutes
        "currentAction": "none" # Current volume action
    }
    ...
]

Parameters:object_id – A pool id Returns:A dict representing the action progress

get_ssc_storage_pool(volume_group_ref)

Get storage pool service quality information from the array.

get_storage_pool(volume_group_ref)

Get storage pool information from the array.

get_system_id()

Get the storage system id.

get_volume_mappings()

Creates volume mapping on array.

get_volume_mappings_for_host(host_ref)

Gets all volume mappings for given host from array.

get_volume_mappings_for_host_group(hg_ref)

Gets all volume mappings for given host group from array.

get_volume_mappings_for_volume(volume)

Gets all host mappings for given volume from array.

list_backend_store(key)

Retrieve data by key from the persistent store on the backend.

Example response: {“key”: “cinder-snapshots”, “value”: “[]”}

Parameters:key – the persistent store to retrieve Returns:a json body representing the value of the store, or an empty json object

list_cg_snapshot_views(cg_id, view_id)

list_consistency_groups()

Retrieve all consistency groups defined on the array

list_drives()

Lists drives in the array.

list_hardware_inventory()

Lists objects in the hardware inventory.

list_host_groups()

Lists host groups on the array.

list_host_types()

Lists host types in storage system.

list_hosts()

Lists host objects in the system.

list_snapshot_group(object_id)

Retrieve given snapshot group from the array.

list_snapshot_groups()

Lists snapshot groups.

list_snapshot_image(object_id)

Retrieve given snapshot image from the array.

list_snapshot_images()

Lists snapshot images.

list_snapshot_volumes()

Lists snapshot volumes/views defined on the array.

list_ssc_storage_pools()

Lists pools and their service quality defined on the array.

list_storage_pools()

Lists storage pools in the array.

list_storage_system()

List current storage system registered with web service.

list_storage_systems()

Lists managed storage systems registered with web service.

list_target_wwpns()

Lists the world-wide port names of the target.

list_vol_copy_job(object_id)

List volume copy job.

list_volume(object_id)

Retrieve the given volume from array.

Parameters:object_id – The volume id, label, or wwn Returns:The volume identified by object_id Raise:VolumeNotFound if the volume could not be found

list_volumes()

Lists all volumes in storage array.

move_volume_mapping_via_symbol(map_ref, to_ref, lun_id)

Moves a map from one host/host_group object to another.

register_storage_system(controller_addresses, password=None, wwn=None)

Registers storage system with web service.

remove_consistency_group_member(volume_id, cg_id)

Remove a volume from a consistency group

save_backend_store(key, store_data)

Save a json value to the persistent storage on the backend.

The storage backend provides a small amount of persistent storage that we can utilize for storing driver information.

Parameters:

• key – The key utilized for storing/retrieving the data
• store_data – a python data structure that will be stored as a json value

set_chap_authentication(target_iqn, chap_username, chap_password)

Configures CHAP credentials for target IQN from backend.

set_counter(key, value)

set_host_group_for_host(host_ref, host_group_ref=‘0000000000000000000000000000000000000000’)

Sets or clears which host group a host is in.

set_system_id(system_id)

Set the storage system id.

update_host(host_ref, data)

Updates host type for a given host.

update_host_type(host_ref, host_type)

Updates host type for a given host.

update_snapshot_group(group_id, label)

Modify a snapshot group on the array.

update_snapshot_volume(snap_vol_id, label=None, full_thres=None)

Modify an existing snapshot volume.

update_stored_system_password(password)

Update array password stored on web service.

update_volume(object_id, label)

Renames given volume on array.

class WebserviceClient(scheme, host, port, service_path, username, password, **kwargs)

Bases: object

Base client for NetApp Storage web services.

invoke_service(method=’GET’, url=None, params=None, data=None, headers=None, timeout=None, verify=False)