cinder.volume.drivers.netapp.dataontap.utils.data_motion
Module¶NetApp Data ONTAP data motion library.
This library handles transferring data from a source to a destination. Its responsibility is to handle this as efficiently as possible given the location of the data’s source and destination. This includes cloning, SnapMirror, and copy-offload as improvements to brute force data transfer.
DataMotionMixin
¶Bases: object
break_snapmirror
(src_backend_name, dest_backend_name, src_flexvol_name, dest_flexvol_name)¶Break SnapMirror relationship.
break_snapmirrors
(config, src_backend_name, src_flexvol_names, chosen_target)¶Break all existing SnapMirror relationships for a given back end.
create_destination_flexvol
(src_backend_name, dest_backend_name, src_flexvol_name, dest_flexvol_name)¶Create a SnapMirror mirror target FlexVol for a given source.
create_snapmirror
(src_backend_name, dest_backend_name, src_flexvol_name, dest_flexvol_name)¶Set up a SnapMirror relationship b/w two FlexVols (cinder pools)
If a SnapMirror relationship already exists and is broken off or quiesced, resume and re-sync the mirror.
delete_snapmirror
(src_backend_name, dest_backend_name, src_flexvol_name, dest_flexvol_name, release=True)¶Ensure all information about a SnapMirror relationship is removed.
ensure_snapmirrors
(config, src_backend_name, src_flexvol_names)¶Ensure all the SnapMirrors needed for whole-backend replication.
get_replication_backend_names
(config)¶Get the backend names for all configured replication targets.
get_replication_backend_stats
(config)¶Get the driver replication info for merging into volume stats.
get_snapmirrors
(src_backend_name, dest_backend_name, src_flexvol_name=None, dest_flexvol_name=None)¶Get info regarding SnapMirror relationship/s for given params.
quiesce_then_abort
(src_backend_name, dest_backend_name, src_flexvol_name, dest_flexvol_name)¶Quiesce a SnapMirror and wait with retries before aborting.
resume_snapmirror
(src_backend_name, dest_backend_name, src_flexvol_name, dest_flexvol_name)¶Resume SnapMirror relationship from a quiesced state.
resync_snapmirror
(src_backend_name, dest_backend_name, src_flexvol_name, dest_flexvol_name)¶Re-sync (repair / re-establish) SnapMirror relationship.
update_snapmirror
(src_backend_name, dest_backend_name, src_flexvol_name, dest_flexvol_name)¶Schedule a SnapMirror update on the backend.
update_snapmirrors
(config, src_backend_name, src_flexvol_names)¶Update all existing SnapMirror relationships on a given back end.
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