cinder.volume.drivers.zfssa.zfssanfs
Module¶ZFS Storage Appliance NFS Cinder Volume Driver
ZFSSANFSDriver
(*args, **kwargs)¶Bases: cinder.volume.drivers.nfs.NfsDriver
ZFSSA Cinder NFS volume driver.
Version history:
1.0.1:
Backend enabled volume migration.
Local cache feature.
1.0.2:
Volume manage/unmanage support.
CI_WIKI_NAME
= ‘Oracle_ZFSSA_CI’¶VERSION
= ‘1.0.2’¶check_for_setup_error
()¶Check that driver can login.
Check also for properly configured pool, project and share Check that the http and nfs services are enabled
clone_image
(*args, **kwargs)¶Create a volume efficiently from an existing image.
Verify the image ID being used:
(1) If there is no existing cache volume, create one and transfer image data to it. Take a snapshot.
(2) If a cache volume already exists, verify if it is either alternated or updated. If so try to remove it, raise exception if removal fails. Create a new cache volume as in (1).
Clone a volume from the cache volume and returns it to Cinder.
A file lock is placed on this method to prevent: (a) a race condition when a cache volume has been verified, but then gets deleted before it is cloned.
(b) failure of subsequent clone_image requests if the first request is still pending.
create_cloned_volume
(volume, src_vref)¶Creates a snapshot and then clones the snapshot into a volume.
create_snapshot
(snapshot)¶Creates a snapshot of a volume.
create_volume
(volume)¶create_volume_from_snapshot
(volume, snapshot, method=’COPY’)¶delete_snapshot
(snapshot)¶Deletes a snapshot.
delete_volume
(volume)¶do_setup
(context)¶driver_prefix
= ‘nfs’¶driver_volume_type
= ‘nfs’¶manage_existing
(volume, existing_ref)¶Manage an existing volume in the ZFSSA backend.
Parameters: |
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manage_existing_get_size
(volume, existing_ref)¶Return size of the volume to be managed by manage_existing.
migrate_volume
(ctxt, volume, host)¶protocol
= ‘nfs’¶unmanage
(volume)¶Remove an existing volume from cinder management.
Parameters: | volume – Reference to the volume to be unmanaged. |
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update_migrated_volume
(ctxt, volume, new_volume, original_volume_status)¶Return model update for migrated volume.
Parameters: |
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Returns: | model_update to update DB with any needed changes |
volume_backend_name
= ‘ZFSSA_NFS’¶factory_zfssa
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