diff --git a/generated-py/ptypes/controller_pb2.py b/generated-py/ptypes/controller_pb2.py
index e539f30..2296ec0 100644
--- a/generated-py/ptypes/controller_pb2.py
+++ b/generated-py/ptypes/controller_pb2.py
@@ -15,7 +15,7 @@
 from ptypes import common_pb2 as ptypes_dot_common__pb2
 
 
-DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n\x17ptypes/controller.proto\x12\x06ptypes\x1a\x1bgoogle/protobuf/empty.proto\x1a\x13ptypes/common.proto\"\xa8\x02\n\x06Volume\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x0c\n\x04size\x18\x02 \x01(\x03\x12\x14\n\x0creplicaCount\x18\x03 \x01(\x05\x12\x10\n\x08\x65ndpoint\x18\x04 \x01(\t\x12\x10\n\x08\x66rontend\x18\x05 \x01(\t\x12\x15\n\rfrontendState\x18\x06 \x01(\t\x12\x13\n\x0bisExpanding\x18\x07 \x01(\x08\x12\x1c\n\x14last_expansion_error\x18\x08 \x01(\t\x12 \n\x18last_expansion_failed_at\x18\t \x01(\t\x12%\n\x1dunmap_mark_snap_chain_removed\x18\n \x01(\x08\x12\x1a\n\x12snapshot_max_count\x18\x0b \x01(\x05\x12\x19\n\x11snapshot_max_size\x18\x0c \x01(\x03\"7\n\x0eReplicaAddress\x12\x0f\n\x07\x61\x64\x64ress\x18\x01 \x01(\t\x12\x14\n\x0cinstanceName\x18\x02 \x01(\t\"_\n\x11\x43ontrollerReplica\x12\'\n\x07\x61\x64\x64ress\x18\x01 \x01(\x0b\x32\x16.ptypes.ReplicaAddress\x12!\n\x04mode\x18\x02 \x01(\x0e\x32\x13.ptypes.ReplicaMode\"Q\n\x12VolumeStartRequest\x12\x18\n\x10replicaAddresses\x18\x01 \x03(\t\x12\x0c\n\x04size\x18\x02 \x01(\x03\x12\x13\n\x0b\x63urrentSize\x18\x03 \x01(\x03\"\xa9\x01\n\x15VolumeSnapshotRequest\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x39\n\x06labels\x18\x02 \x03(\x0b\x32).ptypes.VolumeSnapshotRequest.LabelsEntry\x12\x18\n\x10\x66reezeFilesystem\x18\x03 \x01(\x08\x1a-\n\x0bLabelsEntry\x12\x0b\n\x03key\x18\x01 \x01(\t\x12\r\n\x05value\x18\x02 \x01(\t:\x02\x38\x01\"#\n\x13VolumeSnapshotReply\x12\x0c\n\x04name\x18\x01 \x01(\t\"#\n\x13VolumeRevertRequest\x12\x0c\n\x04name\x18\x01 \x01(\t\"#\n\x13VolumeExpandRequest\x12\x0c\n\x04size\x18\x01 \x01(\x03\".\n\x1aVolumeFrontendStartRequest\x12\x10\n\x08\x66rontend\x18\x01 \x01(\t\"<\n)VolumeUnmapMarkSnapChainRemovedSetRequest\x12\x0f\n\x07\x65nabled\x18\x01 \x01(\x08\"1\n VolumeSnapshotMaxCountSetRequest\x12\r\n\x05\x63ount\x18\x01 \x01(\x05\"/\n\x1fVolumeSnapshotMaxSizeSetRequest\x12\x0c\n\x04size\x18\x01 \x01(\x03\"3\n\x1bVolumePrepareRestoreRequest\x12\x14\n\x0clastRestored\x18\x01 \x01(\t\"5\n\x1aVolumeFinishRestoreRequest\x12\x17\n\x0f\x63urrentRestored\x18\x01 \x01(\t\"?\n\x10ReplicaListReply\x12+\n\x08replicas\x18\x01 \x03(\x0b\x32\x19.ptypes.ControllerReplica\"o\n\x1e\x43ontrollerReplicaCreateRequest\x12\x0f\n\x07\x61\x64\x64ress\x18\x01 \x01(\t\x12\x19\n\x11snapshot_required\x18\x02 \x01(\x08\x12!\n\x04mode\x18\x03 \x01(\x0e\x32\x13.ptypes.ReplicaMode\"{\n\x1aReplicaPrepareRebuildReply\x12*\n\x07replica\x18\x01 \x01(\x0b\x32\x19.ptypes.ControllerReplica\x12\x31\n\x13sync_file_info_list\x18\x02 \x03(\x0b\x32\x14.ptypes.SyncFileInfo\"#\n\x12JournalListRequest\x12\r\n\x05limit\x18\x01 \x01(\x03\"\xef\x01\n\rVersionOutput\x12\x0f\n\x07version\x18\x01 \x01(\t\x12\x11\n\tgitCommit\x18\x02 \x01(\t\x12\x11\n\tbuildDate\x18\x03 \x01(\t\x12\x15\n\rcliAPIVersion\x18\x04 \x01(\x03\x12\x18\n\x10\x63liAPIMinVersion\x18\x05 \x01(\x03\x12\x1c\n\x14\x63ontrollerAPIVersion\x18\x06 \x01(\x03\x12\x1f\n\x17\x63ontrollerAPIMinVersion\x18\x07 \x01(\x03\x12\x19\n\x11\x64\x61taFormatVersion\x18\x08 \x01(\x03\x12\x1c\n\x14\x64\x61taFormatMinVersion\x18\t \x01(\x03\"?\n\x15VersionDetailGetReply\x12&\n\x07version\x18\x01 \x01(\x0b\x32\x15.ptypes.VersionOutput\"\x8a\x01\n\x07Metrics\x12\x16\n\x0ereadThroughput\x18\x01 \x01(\x04\x12\x17\n\x0fwriteThroughput\x18\x02 \x01(\x04\x12\x13\n\x0breadLatency\x18\x03 \x01(\x04\x12\x14\n\x0cwriteLatency\x18\x04 \x01(\x04\x12\x10\n\x08readIOPS\x18\x05 \x01(\x04\x12\x11\n\twriteIOPS\x18\x06 \x01(\x04\"3\n\x0fMetricsGetReply\x12 \n\x07metrics\x18\x01 \x01(\x0b\x32\x0f.ptypes.Metrics*&\n\x0bReplicaMode\x12\x06\n\x02WO\x10\x00\x12\x06\n\x02RW\x10\x01\x12\x07\n\x03\x45RR\x10\x02\x32\xfc\x0b\n\x11\x43ontrollerService\x12\x33\n\tVolumeGet\x12\x16.google.protobuf.Empty\x1a\x0e.ptypes.Volume\x12\x39\n\x0bVolumeStart\x12\x1a.ptypes.VolumeStartRequest\x1a\x0e.ptypes.Volume\x12\x38\n\x0eVolumeShutdown\x12\x16.google.protobuf.Empty\x1a\x0e.ptypes.Volume\x12L\n\x0eVolumeSnapshot\x12\x1d.ptypes.VolumeSnapshotRequest\x1a\x1b.ptypes.VolumeSnapshotReply\x12;\n\x0cVolumeRevert\x12\x1b.ptypes.VolumeRevertRequest\x1a\x0e.ptypes.Volume\x12;\n\x0cVolumeExpand\x12\x1b.ptypes.VolumeExpandRequest\x1a\x0e.ptypes.Volume\x12I\n\x13VolumeFrontendStart\x12\".ptypes.VolumeFrontendStartRequest\x1a\x0e.ptypes.Volume\x12@\n\x16VolumeFrontendShutdown\x12\x16.google.protobuf.Empty\x1a\x0e.ptypes.Volume\x12g\n\"VolumeUnmapMarkSnapChainRemovedSet\x12\x31.ptypes.VolumeUnmapMarkSnapChainRemovedSetRequest\x1a\x0e.ptypes.Volume\x12U\n\x19VolumeSnapshotMaxCountSet\x12(.ptypes.VolumeSnapshotMaxCountSetRequest\x1a\x0e.ptypes.Volume\x12S\n\x18VolumeSnapshotMaxSizeSet\x12\'.ptypes.VolumeSnapshotMaxSizeSetRequest\x1a\x0e.ptypes.Volume\x12?\n\x0bReplicaList\x12\x16.google.protobuf.Empty\x1a\x18.ptypes.ReplicaListReply\x12?\n\nReplicaGet\x12\x16.ptypes.ReplicaAddress\x1a\x19.ptypes.ControllerReplica\x12\\\n\x17\x43ontrollerReplicaCreate\x12&.ptypes.ControllerReplicaCreateRequest\x1a\x19.ptypes.ControllerReplica\x12?\n\rReplicaDelete\x12\x16.ptypes.ReplicaAddress\x1a\x16.google.protobuf.Empty\x12\x45\n\rReplicaUpdate\x12\x19.ptypes.ControllerReplica\x1a\x19.ptypes.ControllerReplica\x12S\n\x15ReplicaPrepareRebuild\x12\x16.ptypes.ReplicaAddress\x1a\".ptypes.ReplicaPrepareRebuildReply\x12I\n\x14ReplicaVerifyRebuild\x12\x16.ptypes.ReplicaAddress\x1a\x19.ptypes.ControllerReplica\x12\x41\n\x0bJournalList\x12\x1a.ptypes.JournalListRequest\x1a\x16.google.protobuf.Empty\x12I\n\x10VersionDetailGet\x12\x16.google.protobuf.Empty\x1a\x1d.ptypes.VersionDetailGetReply\x12=\n\nMetricsGet\x12\x16.google.protobuf.Empty\x1a\x17.ptypes.MetricsGetReplyB3Z1github.com/longhorn/types/pkg/generated/enginerpcb\x06proto3')
+DESCRIPTOR = _descriptor_pool.Default().AddSerializedFile(b'\n\x17ptypes/controller.proto\x12\x06ptypes\x1a\x1bgoogle/protobuf/empty.proto\x1a\x13ptypes/common.proto\"\xa8\x02\n\x06Volume\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x0c\n\x04size\x18\x02 \x01(\x03\x12\x14\n\x0creplicaCount\x18\x03 \x01(\x05\x12\x10\n\x08\x65ndpoint\x18\x04 \x01(\t\x12\x10\n\x08\x66rontend\x18\x05 \x01(\t\x12\x15\n\rfrontendState\x18\x06 \x01(\t\x12\x13\n\x0bisExpanding\x18\x07 \x01(\x08\x12\x1c\n\x14last_expansion_error\x18\x08 \x01(\t\x12 \n\x18last_expansion_failed_at\x18\t \x01(\t\x12%\n\x1dunmap_mark_snap_chain_removed\x18\n \x01(\x08\x12\x1a\n\x12snapshot_max_count\x18\x0b \x01(\x05\x12\x19\n\x11snapshot_max_size\x18\x0c \x01(\x03\"7\n\x0eReplicaAddress\x12\x0f\n\x07\x61\x64\x64ress\x18\x01 \x01(\t\x12\x14\n\x0cinstanceName\x18\x02 \x01(\t\"_\n\x11\x43ontrollerReplica\x12\'\n\x07\x61\x64\x64ress\x18\x01 \x01(\x0b\x32\x16.ptypes.ReplicaAddress\x12!\n\x04mode\x18\x02 \x01(\x0e\x32\x13.ptypes.ReplicaMode\"Q\n\x12VolumeStartRequest\x12\x18\n\x10replicaAddresses\x18\x01 \x03(\t\x12\x0c\n\x04size\x18\x02 \x01(\x03\x12\x13\n\x0b\x63urrentSize\x18\x03 \x01(\x03\"\xbe\x01\n\x15VolumeSnapshotRequest\x12\x0c\n\x04name\x18\x01 \x01(\t\x12\x39\n\x06labels\x18\x02 \x03(\x0b\x32).ptypes.VolumeSnapshotRequest.LabelsEntry\x12\x18\n\x10\x66reezeFilesystem\x18\x03 \x01(\x08\x12\x13\n\x0buserCreated\x18\x04 \x01(\x08\x1a-\n\x0bLabelsEntry\x12\x0b\n\x03key\x18\x01 \x01(\t\x12\r\n\x05value\x18\x02 \x01(\t:\x02\x38\x01\"#\n\x13VolumeSnapshotReply\x12\x0c\n\x04name\x18\x01 \x01(\t\"#\n\x13VolumeRevertRequest\x12\x0c\n\x04name\x18\x01 \x01(\t\"#\n\x13VolumeExpandRequest\x12\x0c\n\x04size\x18\x01 \x01(\x03\".\n\x1aVolumeFrontendStartRequest\x12\x10\n\x08\x66rontend\x18\x01 \x01(\t\"<\n)VolumeUnmapMarkSnapChainRemovedSetRequest\x12\x0f\n\x07\x65nabled\x18\x01 \x01(\x08\"1\n VolumeSnapshotMaxCountSetRequest\x12\r\n\x05\x63ount\x18\x01 \x01(\x05\"/\n\x1fVolumeSnapshotMaxSizeSetRequest\x12\x0c\n\x04size\x18\x01 \x01(\x03\"3\n\x1bVolumePrepareRestoreRequest\x12\x14\n\x0clastRestored\x18\x01 \x01(\t\"5\n\x1aVolumeFinishRestoreRequest\x12\x17\n\x0f\x63urrentRestored\x18\x01 \x01(\t\"?\n\x10ReplicaListReply\x12+\n\x08replicas\x18\x01 \x03(\x0b\x32\x19.ptypes.ControllerReplica\"o\n\x1e\x43ontrollerReplicaCreateRequest\x12\x0f\n\x07\x61\x64\x64ress\x18\x01 \x01(\t\x12\x19\n\x11snapshot_required\x18\x02 \x01(\x08\x12!\n\x04mode\x18\x03 \x01(\x0e\x32\x13.ptypes.ReplicaMode\"{\n\x1aReplicaPrepareRebuildReply\x12*\n\x07replica\x18\x01 \x01(\x0b\x32\x19.ptypes.ControllerReplica\x12\x31\n\x13sync_file_info_list\x18\x02 \x03(\x0b\x32\x14.ptypes.SyncFileInfo\"#\n\x12JournalListRequest\x12\r\n\x05limit\x18\x01 \x01(\x03\"\xef\x01\n\rVersionOutput\x12\x0f\n\x07version\x18\x01 \x01(\t\x12\x11\n\tgitCommit\x18\x02 \x01(\t\x12\x11\n\tbuildDate\x18\x03 \x01(\t\x12\x15\n\rcliAPIVersion\x18\x04 \x01(\x03\x12\x18\n\x10\x63liAPIMinVersion\x18\x05 \x01(\x03\x12\x1c\n\x14\x63ontrollerAPIVersion\x18\x06 \x01(\x03\x12\x1f\n\x17\x63ontrollerAPIMinVersion\x18\x07 \x01(\x03\x12\x19\n\x11\x64\x61taFormatVersion\x18\x08 \x01(\x03\x12\x1c\n\x14\x64\x61taFormatMinVersion\x18\t \x01(\x03\"?\n\x15VersionDetailGetReply\x12&\n\x07version\x18\x01 \x01(\x0b\x32\x15.ptypes.VersionOutput\"\x8a\x01\n\x07Metrics\x12\x16\n\x0ereadThroughput\x18\x01 \x01(\x04\x12\x17\n\x0fwriteThroughput\x18\x02 \x01(\x04\x12\x13\n\x0breadLatency\x18\x03 \x01(\x04\x12\x14\n\x0cwriteLatency\x18\x04 \x01(\x04\x12\x10\n\x08readIOPS\x18\x05 \x01(\x04\x12\x11\n\twriteIOPS\x18\x06 \x01(\x04\"3\n\x0fMetricsGetReply\x12 \n\x07metrics\x18\x01 \x01(\x0b\x32\x0f.ptypes.Metrics*&\n\x0bReplicaMode\x12\x06\n\x02WO\x10\x00\x12\x06\n\x02RW\x10\x01\x12\x07\n\x03\x45RR\x10\x02\x32\xfc\x0b\n\x11\x43ontrollerService\x12\x33\n\tVolumeGet\x12\x16.google.protobuf.Empty\x1a\x0e.ptypes.Volume\x12\x39\n\x0bVolumeStart\x12\x1a.ptypes.VolumeStartRequest\x1a\x0e.ptypes.Volume\x12\x38\n\x0eVolumeShutdown\x12\x16.google.protobuf.Empty\x1a\x0e.ptypes.Volume\x12L\n\x0eVolumeSnapshot\x12\x1d.ptypes.VolumeSnapshotRequest\x1a\x1b.ptypes.VolumeSnapshotReply\x12;\n\x0cVolumeRevert\x12\x1b.ptypes.VolumeRevertRequest\x1a\x0e.ptypes.Volume\x12;\n\x0cVolumeExpand\x12\x1b.ptypes.VolumeExpandRequest\x1a\x0e.ptypes.Volume\x12I\n\x13VolumeFrontendStart\x12\".ptypes.VolumeFrontendStartRequest\x1a\x0e.ptypes.Volume\x12@\n\x16VolumeFrontendShutdown\x12\x16.google.protobuf.Empty\x1a\x0e.ptypes.Volume\x12g\n\"VolumeUnmapMarkSnapChainRemovedSet\x12\x31.ptypes.VolumeUnmapMarkSnapChainRemovedSetRequest\x1a\x0e.ptypes.Volume\x12U\n\x19VolumeSnapshotMaxCountSet\x12(.ptypes.VolumeSnapshotMaxCountSetRequest\x1a\x0e.ptypes.Volume\x12S\n\x18VolumeSnapshotMaxSizeSet\x12\'.ptypes.VolumeSnapshotMaxSizeSetRequest\x1a\x0e.ptypes.Volume\x12?\n\x0bReplicaList\x12\x16.google.protobuf.Empty\x1a\x18.ptypes.ReplicaListReply\x12?\n\nReplicaGet\x12\x16.ptypes.ReplicaAddress\x1a\x19.ptypes.ControllerReplica\x12\\\n\x17\x43ontrollerReplicaCreate\x12&.ptypes.ControllerReplicaCreateRequest\x1a\x19.ptypes.ControllerReplica\x12?\n\rReplicaDelete\x12\x16.ptypes.ReplicaAddress\x1a\x16.google.protobuf.Empty\x12\x45\n\rReplicaUpdate\x12\x19.ptypes.ControllerReplica\x1a\x19.ptypes.ControllerReplica\x12S\n\x15ReplicaPrepareRebuild\x12\x16.ptypes.ReplicaAddress\x1a\".ptypes.ReplicaPrepareRebuildReply\x12I\n\x14ReplicaVerifyRebuild\x12\x16.ptypes.ReplicaAddress\x1a\x19.ptypes.ControllerReplica\x12\x41\n\x0bJournalList\x12\x1a.ptypes.JournalListRequest\x1a\x16.google.protobuf.Empty\x12I\n\x10VersionDetailGet\x12\x16.google.protobuf.Empty\x1a\x1d.ptypes.VersionDetailGetReply\x12=\n\nMetricsGet\x12\x16.google.protobuf.Empty\x1a\x17.ptypes.MetricsGetReplyB3Z1github.com/longhorn/types/pkg/generated/enginerpcb\x06proto3')
 
 _globals = globals()
 _builder.BuildMessageAndEnumDescriptors(DESCRIPTOR, _globals)
@@ -26,8 +26,8 @@
   DESCRIPTOR._serialized_options = b'Z1github.com/longhorn/types/pkg/generated/enginerpc'
   _VOLUMESNAPSHOTREQUEST_LABELSENTRY._options = None
   _VOLUMESNAPSHOTREQUEST_LABELSENTRY._serialized_options = b'8\001'
-  _globals['_REPLICAMODE']._serialized_start=2063
-  _globals['_REPLICAMODE']._serialized_end=2101
+  _globals['_REPLICAMODE']._serialized_start=2084
+  _globals['_REPLICAMODE']._serialized_end=2122
   _globals['_VOLUME']._serialized_start=86
   _globals['_VOLUME']._serialized_end=382
   _globals['_REPLICAADDRESS']._serialized_start=384
@@ -37,43 +37,43 @@
   _globals['_VOLUMESTARTREQUEST']._serialized_start=538
   _globals['_VOLUMESTARTREQUEST']._serialized_end=619
   _globals['_VOLUMESNAPSHOTREQUEST']._serialized_start=622
-  _globals['_VOLUMESNAPSHOTREQUEST']._serialized_end=791
-  _globals['_VOLUMESNAPSHOTREQUEST_LABELSENTRY']._serialized_start=746
-  _globals['_VOLUMESNAPSHOTREQUEST_LABELSENTRY']._serialized_end=791
-  _globals['_VOLUMESNAPSHOTREPLY']._serialized_start=793
-  _globals['_VOLUMESNAPSHOTREPLY']._serialized_end=828
-  _globals['_VOLUMEREVERTREQUEST']._serialized_start=830
-  _globals['_VOLUMEREVERTREQUEST']._serialized_end=865
-  _globals['_VOLUMEEXPANDREQUEST']._serialized_start=867
-  _globals['_VOLUMEEXPANDREQUEST']._serialized_end=902
-  _globals['_VOLUMEFRONTENDSTARTREQUEST']._serialized_start=904
-  _globals['_VOLUMEFRONTENDSTARTREQUEST']._serialized_end=950
-  _globals['_VOLUMEUNMAPMARKSNAPCHAINREMOVEDSETREQUEST']._serialized_start=952
-  _globals['_VOLUMEUNMAPMARKSNAPCHAINREMOVEDSETREQUEST']._serialized_end=1012
-  _globals['_VOLUMESNAPSHOTMAXCOUNTSETREQUEST']._serialized_start=1014
-  _globals['_VOLUMESNAPSHOTMAXCOUNTSETREQUEST']._serialized_end=1063
-  _globals['_VOLUMESNAPSHOTMAXSIZESETREQUEST']._serialized_start=1065
-  _globals['_VOLUMESNAPSHOTMAXSIZESETREQUEST']._serialized_end=1112
-  _globals['_VOLUMEPREPARERESTOREREQUEST']._serialized_start=1114
-  _globals['_VOLUMEPREPARERESTOREREQUEST']._serialized_end=1165
-  _globals['_VOLUMEFINISHRESTOREREQUEST']._serialized_start=1167
-  _globals['_VOLUMEFINISHRESTOREREQUEST']._serialized_end=1220
-  _globals['_REPLICALISTREPLY']._serialized_start=1222
-  _globals['_REPLICALISTREPLY']._serialized_end=1285
-  _globals['_CONTROLLERREPLICACREATEREQUEST']._serialized_start=1287
-  _globals['_CONTROLLERREPLICACREATEREQUEST']._serialized_end=1398
-  _globals['_REPLICAPREPAREREBUILDREPLY']._serialized_start=1400
-  _globals['_REPLICAPREPAREREBUILDREPLY']._serialized_end=1523
-  _globals['_JOURNALLISTREQUEST']._serialized_start=1525
-  _globals['_JOURNALLISTREQUEST']._serialized_end=1560
-  _globals['_VERSIONOUTPUT']._serialized_start=1563
-  _globals['_VERSIONOUTPUT']._serialized_end=1802
-  _globals['_VERSIONDETAILGETREPLY']._serialized_start=1804
-  _globals['_VERSIONDETAILGETREPLY']._serialized_end=1867
-  _globals['_METRICS']._serialized_start=1870
-  _globals['_METRICS']._serialized_end=2008
-  _globals['_METRICSGETREPLY']._serialized_start=2010
-  _globals['_METRICSGETREPLY']._serialized_end=2061
-  _globals['_CONTROLLERSERVICE']._serialized_start=2104
-  _globals['_CONTROLLERSERVICE']._serialized_end=3636
+  _globals['_VOLUMESNAPSHOTREQUEST']._serialized_end=812
+  _globals['_VOLUMESNAPSHOTREQUEST_LABELSENTRY']._serialized_start=767
+  _globals['_VOLUMESNAPSHOTREQUEST_LABELSENTRY']._serialized_end=812
+  _globals['_VOLUMESNAPSHOTREPLY']._serialized_start=814
+  _globals['_VOLUMESNAPSHOTREPLY']._serialized_end=849
+  _globals['_VOLUMEREVERTREQUEST']._serialized_start=851
+  _globals['_VOLUMEREVERTREQUEST']._serialized_end=886
+  _globals['_VOLUMEEXPANDREQUEST']._serialized_start=888
+  _globals['_VOLUMEEXPANDREQUEST']._serialized_end=923
+  _globals['_VOLUMEFRONTENDSTARTREQUEST']._serialized_start=925
+  _globals['_VOLUMEFRONTENDSTARTREQUEST']._serialized_end=971
+  _globals['_VOLUMEUNMAPMARKSNAPCHAINREMOVEDSETREQUEST']._serialized_start=973
+  _globals['_VOLUMEUNMAPMARKSNAPCHAINREMOVEDSETREQUEST']._serialized_end=1033
+  _globals['_VOLUMESNAPSHOTMAXCOUNTSETREQUEST']._serialized_start=1035
+  _globals['_VOLUMESNAPSHOTMAXCOUNTSETREQUEST']._serialized_end=1084
+  _globals['_VOLUMESNAPSHOTMAXSIZESETREQUEST']._serialized_start=1086
+  _globals['_VOLUMESNAPSHOTMAXSIZESETREQUEST']._serialized_end=1133
+  _globals['_VOLUMEPREPARERESTOREREQUEST']._serialized_start=1135
+  _globals['_VOLUMEPREPARERESTOREREQUEST']._serialized_end=1186
+  _globals['_VOLUMEFINISHRESTOREREQUEST']._serialized_start=1188
+  _globals['_VOLUMEFINISHRESTOREREQUEST']._serialized_end=1241
+  _globals['_REPLICALISTREPLY']._serialized_start=1243
+  _globals['_REPLICALISTREPLY']._serialized_end=1306
+  _globals['_CONTROLLERREPLICACREATEREQUEST']._serialized_start=1308
+  _globals['_CONTROLLERREPLICACREATEREQUEST']._serialized_end=1419
+  _globals['_REPLICAPREPAREREBUILDREPLY']._serialized_start=1421
+  _globals['_REPLICAPREPAREREBUILDREPLY']._serialized_end=1544
+  _globals['_JOURNALLISTREQUEST']._serialized_start=1546
+  _globals['_JOURNALLISTREQUEST']._serialized_end=1581
+  _globals['_VERSIONOUTPUT']._serialized_start=1584
+  _globals['_VERSIONOUTPUT']._serialized_end=1823
+  _globals['_VERSIONDETAILGETREPLY']._serialized_start=1825
+  _globals['_VERSIONDETAILGETREPLY']._serialized_end=1888
+  _globals['_METRICS']._serialized_start=1891
+  _globals['_METRICS']._serialized_end=2029
+  _globals['_METRICSGETREPLY']._serialized_start=2031
+  _globals['_METRICSGETREPLY']._serialized_end=2082
+  _globals['_CONTROLLERSERVICE']._serialized_start=2125
+  _globals['_CONTROLLERSERVICE']._serialized_end=3657
 # @@protoc_insertion_point(module_scope)
diff --git a/pkg/generated/enginerpc/controller.pb.go b/pkg/generated/enginerpc/controller.pb.go
index db7a2e3..f23bd81 100644
--- a/pkg/generated/enginerpc/controller.pb.go
+++ b/pkg/generated/enginerpc/controller.pb.go
@@ -388,6 +388,7 @@ type VolumeSnapshotRequest struct {
 	// Freeze the filesystem on the root partition. May be implemented with fsfreeze -f,
 	// dmsetup suspend without --nolockfs, or similar.
 	FreezeFilesystem bool `protobuf:"varint,3,opt,name=freezeFilesystem,proto3" json:"freezeFilesystem,omitempty"`
+	UserCreated      bool `protobuf:"varint,4,opt,name=userCreated,proto3" json:"userCreated,omitempty"`
 }
 
 func (x *VolumeSnapshotRequest) Reset() {
@@ -443,6 +444,13 @@ func (x *VolumeSnapshotRequest) GetFreezeFilesystem() bool {
 	return false
 }
 
+func (x *VolumeSnapshotRequest) GetUserCreated() bool {
+	if x != nil {
+		return x.UserCreated
+	}
+	return false
+}
+
 type VolumeSnapshotReply struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -1427,7 +1435,7 @@ var file_ptypes_controller_proto_rawDesc = []byte{
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@@ -1437,218 +1445,220 @@ var file_ptypes_controller_proto_rawDesc = []byte{
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 }
 
 var (
diff --git a/protobuf/ptypes/controller.proto b/protobuf/ptypes/controller.proto
index 065f3d0..4ed32f2 100644
--- a/protobuf/ptypes/controller.proto
+++ b/protobuf/ptypes/controller.proto
@@ -80,6 +80,7 @@ message VolumeSnapshotRequest {
     // Freeze the filesystem on the root partition. May be implemented with fsfreeze -f,
     // dmsetup suspend without --nolockfs, or similar.
     bool freezeFilesystem = 3;
+    bool userCreated = 4;
 }
 
 message VolumeSnapshotReply {