The cinder.volume.drivers.lvm Module

Driver for Linux servers running LVM.

class LVMISCSIDriver(*args, **kwargs)

Bases: cinder.volume.drivers.lvm.LVMVolumeDriver, cinder.volume.driver.ISCSIDriver

Executes commands relating to ISCSI volumes.

We make use of model provider properties as follows:

provider_location

if present, contains the iSCSI target information in the same format as an ietadm discovery i.e. ‘<ip>:<port>,<portal> <target IQN>’

provider_auth

if present, contains a space-separated triple: ‘<auth method> <auth username> <auth password>’. CHAP is the only auth_method in use at the moment.

create_export(context, volume)

Creates an export for a logical volume.

ensure_export(context, volume)

Synchronously recreates an export for a logical volume.

get_volume_stats(refresh=False)

Get volume status.

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

remove_export(context, volume)

Removes an export for a logical volume.

set_execute(execute)

class LVMVolumeDriver(*args, **kwargs)

Bases: cinder.volume.driver.VolumeDriver

Executes commands relating to Volumes.

VERSION = '1.0'

backup_volume(context, backup, backup_service)

Create a new backup from an existing volume.

check_for_setup_error()

Returns an error if prerequisites aren’t met

clear_volume(volume, is_snapshot=False)

unprovision old volumes to prevent data leaking between users.

clone_image(volume, image_location)

copy_image_to_volume(context, volume, image_service, image_id)

Fetch the image from image_service and write it to the volume.

copy_volume_to_image(context, volume, image_service, image_meta)

Copy the volume to the specified image.

create_cloned_volume(volume, src_vref)

Creates a clone of the specified volume.

create_snapshot(snapshot)

Creates a snapshot.

create_volume(volume)

Creates a logical volume. Can optionally return a Dictionary of changes to the volume object to be persisted.

create_volume_from_snapshot(volume, snapshot)

Creates a volume from a snapshot.

delete_snapshot(snapshot)

Deletes a snapshot.

delete_volume(volume)

Deletes a logical volume.

local_path(volume)

restore_backup(context, backup, volume, backup_service)

Restore an existing backup to a new or existing volume.

class ThinLVMVolumeDriver(*args, **kwargs)

Bases: cinder.volume.drivers.lvm.LVMISCSIDriver

Subclass for thin provisioned LVM’s.

VERSION = '1.0'

check_for_setup_error()

Returns an error if prerequisites aren’t met

create_cloned_volume(volume, src_vref)

Creates a clone of the specified volume.

create_snapshot(snapshot)

Creates a snapshot of a volume.

delete_volume(volume)

Deletes a logical volume.

get_volume_stats(refresh=False)

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