The cinder.volume.drivers.nexenta.ns5.iscsi Module

nexenta.iscsi – Driver to store volumes on Nexenta Appliance

class NexentaISCSIDriver(*args, **kwargs)

Bases: cinder.volume.driver.ISCSIDriver

Executes volume driver commands on Nexenta Appliance.

Version history:

1.0.0 - Initial driver version.

VERSION = '1.0.0'

backend_name

check_for_setup_error()

Verify that the zfs volumes exist.

Raise:LookupError

create_cloned_volume(volume, src_vref)

Creates a clone of the specified volume.

Parameters:

• volume – new volume reference
• src_vref – source volume reference

create_export(_ctx, volume, connector)

Create new export for zfs volume.

Parameters:volume – reference of volume to be exported Returns:iscsiadm-formatted provider location string

create_snapshot(snapshot)

Creates a snapshot.

Parameters:snapshot – snapshot reference

create_volume(volume)

Create a zfs volume on appliance.

Parameters:volume – volume reference Returns:model update dict for volume reference

create_volume_from_snapshot(volume, snapshot)

Create new volume from other’s snapshot on appliance.

Parameters:

• volume – reference of volume to be created
• snapshot – reference of source snapshot

delete_snapshot(snapshot)

Delete volume’s snapshot on appliance.

Parameters:snapshot – snapshot reference

delete_volume(volume)

Destroy a zfs volume on appliance.

Parameters:volume – volume reference

do_setup(context)

ensure_export(_ctx, volume)

Recreate parts of export if necessary.

Parameters:volume – reference of volume to be exported

extend_volume(volume, new_size)

Extend an existing volume.

Parameters:

• volume – volume reference
• new_size – volume new size in GB

get_volume_stats(refresh=False)

Get volume stats.

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

remove_export(_ctx, volume)

Destroy all resources created to export zfs volume.

Parameters:volume – reference of volume to be unexported