cinder.volume.drivers.ibm.gpfs
Module¶GPFS Volume Driver.
GPFSDriver
(*args, **kwargs)¶Bases: cinder.volume.driver.CloneableImageVD
, cinder.volume.driver.MigrateVD
, cinder.volume.driver.BaseVD
Implements volume functions using GPFS primitives.
Version history: 1.0.0 - Initial driver 1.1.0 - Add volume retype, refactor volume migration 1.2.0 - Add consistency group support 1.3.0 - Add NFS based GPFS storage backend support 1.3.1 - Add GPFS native encryption (encryption of data at rest) support
CI_WIKI_NAME
= 'IBM_GPFS_CI'¶VERSION
= '1.3.1'¶check_for_setup_error
()¶Returns an error if prerequisites aren’t met.
clone_image
(context, volume, image_location, image_meta, image_service)¶Create a volume from the specified image.
copy_image_to_volume
(context, volume, image_service, image_id)¶Fetch the image from image_service and write it to the volume.
Note that cinder.volume.flows.create_volume will attempt to use clone_image to efficiently create volume from image when both source and target are backed by gpfs storage. If that is not the case, this function is invoked and uses fetch_to_raw to create 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)¶Create a GPFS volume from another volume.
create_export
(context, volume, connector)¶Exports the volume.
create_group
(ctxt, group)¶Creates a group.
Parameters: |
|
---|---|
Returns: | model_update |
create_group_from_src
(ctxt, group, volumes, group_snapshot=None, snapshots=None, source_group=None, source_vols=None)¶Creates a group from source.
Parameters: |
|
---|---|
Returns: | model_update, volumes_model_update |
create_group_snapshot
(ctxt, group_snapshot, snapshots)¶Creates a group_snapshot.
Parameters: |
|
---|---|
Returns: | model_update, snapshots_model_update |
create_snapshot
(snapshot)¶Creates a GPFS snapshot.
create_volume
(volume)¶Creates a GPFS volume.
create_volume_from_snapshot
(volume, snapshot)¶Creates a GPFS volume from a snapshot.
delete_group
(ctxt, group, volumes)¶Deletes a group.
Parameters: |
|
---|---|
Returns: | model_update, volumes_model_update |
delete_group_snapshot
(ctxt, group_snapshot, snapshots)¶Deletes a group_snapshot.
Parameters: |
|
---|---|
Returns: | model_update, snapshots_model_update |
delete_snapshot
(snapshot)¶Deletes a GPFS snapshot.
delete_volume
(volume)¶Deletes a logical volume.
do_setup
(ctxt)¶Determine storage back end capabilities.
ensure_export
(context, volume)¶Synchronously recreates an export for a logical volume.
extend_volume
(volume, new_size)¶Extend an existing volume.
get_volume_stats
(refresh=False)¶Get volume stats.
If ‘refresh’ is True, or stats have never been updated, run update the stats first.
initialize_connection
(volume, connector)¶Allow connection to connector and return connection info.
Parameters: |
|
---|---|
Returns conn_info: | |
A dictionary of connection information. |
local_path
(volume)¶Return the local path for the specified volume.
migrate_volume
(context, volume, host)¶Attempt to migrate a volume to specified host.
remove_export
(context, volume)¶Removes an export for a logical volume.
retype
(context, volume, new_type, diff, host)¶Modify volume to be of new type.
terminate_connection
(volume, connector, **kwargs)¶Disallow connection from connector.
Parameters: |
|
---|
update_group
(ctxt, group, add_volumes=None, remove_volumes=None)¶Updates a group.
Parameters: |
|
---|---|
Returns: | model_update, add_volumes_update, remove_volumes_update |
GPFSNFSDriver
(*args, **kwargs)¶Bases: cinder.volume.drivers.ibm.gpfs.GPFSDriver
, cinder.volume.drivers.nfs.NfsDriver
, cinder.volume.drivers.san.san.SanDriver
GPFS cinder driver extension.
This extends the capability of existing GPFS cinder driver to be able to create cinder volumes when cinder volume service is not running on GPFS node.
CI_WIKI_NAME
= 'IBM_GPFS_NFS_CI'¶VERSION
= '1.0'¶create_cloned_volume
(volume, src_vref)¶Create a GPFS volume from another volume.
create_volume
(volume)¶Creates a GPFS volume.
create_volume_from_snapshot
(volume, snapshot)¶Creates a GPFS volume from a snapshot.
delete_volume
(volume)¶Deletes a logical volume.
do_setup
(context)¶Determine storage back end capabilities.
get_volume_stats
(refresh=False)¶Get volume stats.
If ‘refresh’ is True, or stats have never been updated, run update the stats first.
local_path
(volume)¶Returns the local path for the specified volume.
GPFSRemoteDriver
(*args, **kwargs)¶Bases: cinder.volume.drivers.ibm.gpfs.GPFSDriver
, cinder.volume.drivers.san.san.SanDriver
GPFS cinder driver extension.
This extends the capability of existing GPFS cinder driver to be able to run the driver when cinder volume service is not running on GPFS node where as Nova Compute is a GPFS client. This deployment is typically in Container based OpenStack environment.
CI_WIKI_NAME
= 'IBM_GPFS_REMOTE_CI'¶VERSION
= '1.0'¶do_setup
(ctxt)¶Determine storage back end capabilities.
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