The cinder.volume.drivers.zadara Module

Volume driver for Zadara Virtual Private Storage Array (VPSA).

This driver requires VPSA with API version 15.07 or higher.

class ZadaraVPSAConnection(conf)

Bases: object

Executes volume driver commands on VPSA.

ensure_connection(cmd=None)

Retrieve access key for VPSA connection.

send_cmd(cmd, **kwargs)

Send command to VPSA Controller.

class ZadaraVPSAISCSIDriver(*args, **kwargs)

Bases: cinder.volume.driver.ISCSIDriver

Zadara VPSA iSCSI/iSER volume driver.

Version history:

15.07 - Initial driver 16.05 - Move from httplib to requests

CI_WIKI_NAME = ‘ZadaraStorage_VPSA_CI’

VERSION = ‘16.05’

check_for_setup_error()

Returns an error (exception) if prerequisites aren’t met.

create_cloned_volume(volume, src_vref)

Creates a clone of the specified volume.

create_export(context, volume, vg=None)

Irrelevant for VPSA volumes. Export created during attachment.

create_snapshot(snapshot)

Creates a snapshot.

create_volume(volume)

Create volume.

create_volume_from_snapshot(volume, snapshot)

Creates a volume from a snapshot.

delete_snapshot(snapshot)

Deletes a snapshot.

delete_volume(volume)

Delete volume.

Return ok if doesn’t exist. Auto detach from all servers.

do_setup(context)

Any initialization the volume driver does while starting.

Establishes initial connection with VPSA and retrieves access_key.

ensure_export(context, volume)

Irrelevant for VPSA volumes. Export created during attachment.

extend_volume(volume, new_size)

Extend an existing volume.

get_volume_stats(refresh=False)

Get volume stats.

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

initialize_connection(volume, connector)

Attach volume to initiator/host.

During this call VPSA exposes volume to particular Initiator. It also creates a ‘server’ entity for Initiator (if it was not created before)

All necessary connection information is returned, including auth data. Connection data (target, LUN) is not stored in the DB.

local_path(volume)

Return local path to existing local volume.

remove_export(context, volume)

Irrelevant for VPSA volumes. Export removed during detach.

terminate_connection(volume, connector, **kwargs)

Detach volume from the initiator.