diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2016_04_30_preview/operations/disks_operations.py b/azure-mgmt-compute/azure/mgmt/compute/v2016_04_30_preview/operations/disks_operations.py
index 3ee227fe67e8..2293337205e8 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2016_04_30_preview/operations/disks_operations.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2016_04_30_preview/operations/disks_operations.py
@@ -97,8 +97,10 @@ def create_or_update(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param disk: Disk object supplied in the body of the Put disk
          operation.
@@ -218,8 +220,10 @@ def update(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param disk: Disk object supplied in the body of the Patch disk
          operation.
@@ -287,8 +291,10 @@ def get(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: returns the direct response alongside the
@@ -395,8 +401,10 @@ def delete(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: returns the direct response alongside the
@@ -643,8 +651,10 @@ def grant_access(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param access: Possible values include: 'None', 'Read'
         :type access: str or
@@ -762,8 +772,10 @@ def revoke_access(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: returns the direct response alongside the
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_03_30/operations/disks_operations.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_03_30/operations/disks_operations.py
index bb16a26d1707..65a50ecf6902 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2017_03_30/operations/disks_operations.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_03_30/operations/disks_operations.py
@@ -97,8 +97,10 @@ def create_or_update(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param disk: Disk object supplied in the body of the Put disk
          operation.
@@ -218,8 +220,10 @@ def update(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param disk: Disk object supplied in the body of the Patch disk
          operation.
@@ -287,8 +291,10 @@ def get(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: returns the direct response alongside the
@@ -395,8 +401,10 @@ def delete(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: returns the direct response alongside the
@@ -643,8 +651,10 @@ def grant_access(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param access: Possible values include: 'None', 'Read'
         :type access: str or
@@ -762,8 +772,10 @@ def revoke_access(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param disk_name: The name of the disk within the given subscription
-         and resource group.
+        :param disk_name: The name of the managed disk that is being created.
+         The name can't be changed after the disk is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The maximum name
+         length is 80 characters.
         :type disk_name: str
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: returns the direct response alongside the
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_03_30/operations/snapshots_operations.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_03_30/operations/snapshots_operations.py
index ad0291d164ff..3a1e8eeb85d3 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2017_03_30/operations/snapshots_operations.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_03_30/operations/snapshots_operations.py
@@ -97,8 +97,10 @@ def create_or_update(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param snapshot_name: The name of the snapshot within the given
-         subscription and resource group.
+        :param snapshot_name: The name of the snapshot that is being created.
+         The name can't be changed after the snapshot is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The max name length
+         is 80 characters.
         :type snapshot_name: str
         :param snapshot: Snapshot object supplied in the body of the Put disk
          operation.
@@ -218,8 +220,10 @@ def update(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param snapshot_name: The name of the snapshot within the given
-         subscription and resource group.
+        :param snapshot_name: The name of the snapshot that is being created.
+         The name can't be changed after the snapshot is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The max name length
+         is 80 characters.
         :type snapshot_name: str
         :param snapshot: Snapshot object supplied in the body of the Patch
          snapshot operation.
@@ -287,8 +291,10 @@ def get(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param snapshot_name: The name of the snapshot within the given
-         subscription and resource group.
+        :param snapshot_name: The name of the snapshot that is being created.
+         The name can't be changed after the snapshot is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The max name length
+         is 80 characters.
         :type snapshot_name: str
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: returns the direct response alongside the
@@ -395,8 +401,10 @@ def delete(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param snapshot_name: The name of the snapshot within the given
-         subscription and resource group.
+        :param snapshot_name: The name of the snapshot that is being created.
+         The name can't be changed after the snapshot is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The max name length
+         is 80 characters.
         :type snapshot_name: str
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: returns the direct response alongside the
@@ -643,8 +651,10 @@ def grant_access(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param snapshot_name: The name of the snapshot within the given
-         subscription and resource group.
+        :param snapshot_name: The name of the snapshot that is being created.
+         The name can't be changed after the snapshot is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The max name length
+         is 80 characters.
         :type snapshot_name: str
         :param access: Possible values include: 'None', 'Read'
         :type access: str or
@@ -762,8 +772,10 @@ def revoke_access(
 
         :param resource_group_name: The name of the resource group.
         :type resource_group_name: str
-        :param snapshot_name: The name of the snapshot within the given
-         subscription and resource group.
+        :param snapshot_name: The name of the snapshot that is being created.
+         The name can't be changed after the snapshot is created. Supported
+         characters for the name are a-z, A-Z, 0-9 and _. The max name length
+         is 80 characters.
         :type snapshot_name: str
         :param dict custom_headers: headers that will be added to the request
         :param bool raw: returns the direct response alongside the
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/__init__.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/__init__.py
index 3d6e82bd216d..49f15a5ebf98 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/__init__.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/__init__.py
@@ -112,6 +112,7 @@
 from .resource import Resource
 from .update_resource import UpdateResource
 from .sub_resource_read_only import SubResourceReadOnly
+from .recovery_walk_response import RecoveryWalkResponse
 from .operation_status_response import OperationStatusResponse
 from .run_command_input_parameter import RunCommandInputParameter
 from .run_command_input import RunCommandInput
@@ -256,6 +257,7 @@
     'Resource',
     'UpdateResource',
     'SubResourceReadOnly',
+    'RecoveryWalkResponse',
     'OperationStatusResponse',
     'RunCommandInputParameter',
     'RunCommandInput',
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/data_disk.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/data_disk.py
index d74f48cca017..9e1041fbdb73 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/data_disk.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/data_disk.py
@@ -33,6 +33,9 @@ class DataDisk(Model):
      <br><br> Default: **None for Standard storage. ReadOnly for Premium
      storage**. Possible values include: 'None', 'ReadOnly', 'ReadWrite'
     :type caching: str or ~azure.mgmt.compute.v2017_12_01.models.CachingTypes
+    :param write_accelerator_enabled: Specifies whether writeAccelerator
+     should be enabled or disabled on the disk.
+    :type write_accelerator_enabled: bool
     :param create_option: Specifies how the virtual machine should be
      created.<br><br> Possible values are:<br><br> **Attach** \\u2013 This
      value is used when you are using a specialized disk to create the virtual
@@ -63,18 +66,20 @@ class DataDisk(Model):
         'vhd': {'key': 'vhd', 'type': 'VirtualHardDisk'},
         'image': {'key': 'image', 'type': 'VirtualHardDisk'},
         'caching': {'key': 'caching', 'type': 'CachingTypes'},
+        'write_accelerator_enabled': {'key': 'writeAcceleratorEnabled', 'type': 'bool'},
         'create_option': {'key': 'createOption', 'type': 'DiskCreateOptionTypes'},
         'disk_size_gb': {'key': 'diskSizeGB', 'type': 'int'},
         'managed_disk': {'key': 'managedDisk', 'type': 'ManagedDiskParameters'},
     }
 
-    def __init__(self, lun, create_option, name=None, vhd=None, image=None, caching=None, disk_size_gb=None, managed_disk=None):
+    def __init__(self, lun, create_option, name=None, vhd=None, image=None, caching=None, write_accelerator_enabled=None, disk_size_gb=None, managed_disk=None):
         super(DataDisk, self).__init__()
         self.lun = lun
         self.name = name
         self.vhd = vhd
         self.image = image
         self.caching = caching
+        self.write_accelerator_enabled = write_accelerator_enabled
         self.create_option = create_option
         self.disk_size_gb = disk_size_gb
         self.managed_disk = managed_disk
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/os_disk.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/os_disk.py
index dbd6011b4310..2e527291882b 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/os_disk.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/os_disk.py
@@ -42,6 +42,9 @@ class OSDisk(Model):
      <br><br> Default: **None for Standard storage. ReadOnly for Premium
      storage**. Possible values include: 'None', 'ReadOnly', 'ReadWrite'
     :type caching: str or ~azure.mgmt.compute.v2017_12_01.models.CachingTypes
+    :param write_accelerator_enabled: Specifies whether writeAccelerator
+     should be enabled or disabled on the disk.
+    :type write_accelerator_enabled: bool
     :param create_option: Specifies how the virtual machine should be
      created.<br><br> Possible values are:<br><br> **Attach** \\u2013 This
      value is used when you are using a specialized disk to create the virtual
@@ -72,12 +75,13 @@ class OSDisk(Model):
         'vhd': {'key': 'vhd', 'type': 'VirtualHardDisk'},
         'image': {'key': 'image', 'type': 'VirtualHardDisk'},
         'caching': {'key': 'caching', 'type': 'CachingTypes'},
+        'write_accelerator_enabled': {'key': 'writeAcceleratorEnabled', 'type': 'bool'},
         'create_option': {'key': 'createOption', 'type': 'DiskCreateOptionTypes'},
         'disk_size_gb': {'key': 'diskSizeGB', 'type': 'int'},
         'managed_disk': {'key': 'managedDisk', 'type': 'ManagedDiskParameters'},
     }
 
-    def __init__(self, create_option, os_type=None, encryption_settings=None, name=None, vhd=None, image=None, caching=None, disk_size_gb=None, managed_disk=None):
+    def __init__(self, create_option, os_type=None, encryption_settings=None, name=None, vhd=None, image=None, caching=None, write_accelerator_enabled=None, disk_size_gb=None, managed_disk=None):
         super(OSDisk, self).__init__()
         self.os_type = os_type
         self.encryption_settings = encryption_settings
@@ -85,6 +89,7 @@ def __init__(self, create_option, os_type=None, encryption_settings=None, name=N
         self.vhd = vhd
         self.image = image
         self.caching = caching
+        self.write_accelerator_enabled = write_accelerator_enabled
         self.create_option = create_option
         self.disk_size_gb = disk_size_gb
         self.managed_disk = managed_disk
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/recovery_walk_response.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/recovery_walk_response.py
new file mode 100644
index 000000000000..28e8b6af21fc
--- /dev/null
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/recovery_walk_response.py
@@ -0,0 +1,41 @@
+# coding=utf-8
+# --------------------------------------------------------------------------
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License. See License.txt in the project root for
+# license information.
+#
+# Code generated by Microsoft (R) AutoRest Code Generator.
+# Changes may cause incorrect behavior and will be lost if the code is
+# regenerated.
+# --------------------------------------------------------------------------
+
+from msrest.serialization import Model
+
+
+class RecoveryWalkResponse(Model):
+    """Response after calling a manual recovery walk.
+
+    Variables are only populated by the server, and will be ignored when
+    sending a request.
+
+    :ivar walk_performed: Whether the recovery walk was performed
+    :vartype walk_performed: bool
+    :ivar next_platform_update_domain: The next update domain that needs to be
+     walked. Null means walk spanning all update domains has been completed
+    :vartype next_platform_update_domain: int
+    """
+
+    _validation = {
+        'walk_performed': {'readonly': True},
+        'next_platform_update_domain': {'readonly': True},
+    }
+
+    _attribute_map = {
+        'walk_performed': {'key': 'walkPerformed', 'type': 'bool'},
+        'next_platform_update_domain': {'key': 'nextPlatformUpdateDomain', 'type': 'int'},
+    }
+
+    def __init__(self):
+        super(RecoveryWalkResponse, self).__init__()
+        self.walk_performed = None
+        self.next_platform_update_domain = None
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_instance_view.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_instance_view.py
index de4790894f34..ef75449227cd 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_instance_view.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_instance_view.py
@@ -21,6 +21,13 @@ class VirtualMachineInstanceView(Model):
     :param platform_fault_domain: Specifies the fault domain of the virtual
      machine.
     :type platform_fault_domain: int
+    :param computer_name: The computer name assigned to the virtual machine.
+    :type computer_name: str
+    :param os_name: The Operating System running on the virtual machine.
+    :type os_name: str
+    :param os_version: The version of Operating System running on the virtual
+     machine.
+    :type os_version: str
     :param rdp_thumb_print: The Remote desktop certificate thumbprint.
     :type rdp_thumb_print: str
     :param vm_agent: The VM Agent running on the virtual machine.
@@ -50,6 +57,9 @@ class VirtualMachineInstanceView(Model):
     _attribute_map = {
         'platform_update_domain': {'key': 'platformUpdateDomain', 'type': 'int'},
         'platform_fault_domain': {'key': 'platformFaultDomain', 'type': 'int'},
+        'computer_name': {'key': 'computerName', 'type': 'str'},
+        'os_name': {'key': 'osName', 'type': 'str'},
+        'os_version': {'key': 'osVersion', 'type': 'str'},
         'rdp_thumb_print': {'key': 'rdpThumbPrint', 'type': 'str'},
         'vm_agent': {'key': 'vmAgent', 'type': 'VirtualMachineAgentInstanceView'},
         'maintenance_redeploy_status': {'key': 'maintenanceRedeployStatus', 'type': 'MaintenanceRedeployStatus'},
@@ -59,10 +69,13 @@ class VirtualMachineInstanceView(Model):
         'statuses': {'key': 'statuses', 'type': '[InstanceViewStatus]'},
     }
 
-    def __init__(self, platform_update_domain=None, platform_fault_domain=None, rdp_thumb_print=None, vm_agent=None, maintenance_redeploy_status=None, disks=None, extensions=None, boot_diagnostics=None, statuses=None):
+    def __init__(self, platform_update_domain=None, platform_fault_domain=None, computer_name=None, os_name=None, os_version=None, rdp_thumb_print=None, vm_agent=None, maintenance_redeploy_status=None, disks=None, extensions=None, boot_diagnostics=None, statuses=None):
         super(VirtualMachineInstanceView, self).__init__()
         self.platform_update_domain = platform_update_domain
         self.platform_fault_domain = platform_fault_domain
+        self.computer_name = computer_name
+        self.os_name = os_name
+        self.os_version = os_version
         self.rdp_thumb_print = rdp_thumb_print
         self.vm_agent = vm_agent
         self.maintenance_redeploy_status = maintenance_redeploy_status
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_data_disk.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_data_disk.py
index f0d8872c4f9a..44aa4ac44cc3 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_data_disk.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_data_disk.py
@@ -26,6 +26,9 @@ class VirtualMachineScaleSetDataDisk(Model):
      <br><br> Default: **None for Standard storage. ReadOnly for Premium
      storage**. Possible values include: 'None', 'ReadOnly', 'ReadWrite'
     :type caching: str or ~azure.mgmt.compute.v2017_12_01.models.CachingTypes
+    :param write_accelerator_enabled: Specifies whether writeAccelerator
+     should be enabled or disabled on the disk.
+    :type write_accelerator_enabled: bool
     :param create_option: The create option. Possible values include:
      'FromImage', 'Empty', 'Attach'
     :type create_option: str or
@@ -48,16 +51,18 @@ class VirtualMachineScaleSetDataDisk(Model):
         'name': {'key': 'name', 'type': 'str'},
         'lun': {'key': 'lun', 'type': 'int'},
         'caching': {'key': 'caching', 'type': 'CachingTypes'},
+        'write_accelerator_enabled': {'key': 'writeAcceleratorEnabled', 'type': 'bool'},
         'create_option': {'key': 'createOption', 'type': 'DiskCreateOptionTypes'},
         'disk_size_gb': {'key': 'diskSizeGB', 'type': 'int'},
         'managed_disk': {'key': 'managedDisk', 'type': 'VirtualMachineScaleSetManagedDiskParameters'},
     }
 
-    def __init__(self, lun, create_option, name=None, caching=None, disk_size_gb=None, managed_disk=None):
+    def __init__(self, lun, create_option, name=None, caching=None, write_accelerator_enabled=None, disk_size_gb=None, managed_disk=None):
         super(VirtualMachineScaleSetDataDisk, self).__init__()
         self.name = name
         self.lun = lun
         self.caching = caching
+        self.write_accelerator_enabled = write_accelerator_enabled
         self.create_option = create_option
         self.disk_size_gb = disk_size_gb
         self.managed_disk = managed_disk
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_os_disk.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_os_disk.py
index 9e3448b6f8c9..e7be6a670c83 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_os_disk.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_os_disk.py
@@ -22,6 +22,9 @@ class VirtualMachineScaleSetOSDisk(Model):
      <br><br> Default: **None for Standard storage. ReadOnly for Premium
      storage**. Possible values include: 'None', 'ReadOnly', 'ReadWrite'
     :type caching: str or ~azure.mgmt.compute.v2017_12_01.models.CachingTypes
+    :param write_accelerator_enabled: Specifies whether writeAccelerator
+     should be enabled or disabled on the disk.
+    :type write_accelerator_enabled: bool
     :param create_option: Specifies how the virtual machines in the scale set
      should be created.<br><br> The only allowed value is: **FromImage**
      \\u2013 This value is used when you are using an image to create the
@@ -55,6 +58,7 @@ class VirtualMachineScaleSetOSDisk(Model):
     _attribute_map = {
         'name': {'key': 'name', 'type': 'str'},
         'caching': {'key': 'caching', 'type': 'CachingTypes'},
+        'write_accelerator_enabled': {'key': 'writeAcceleratorEnabled', 'type': 'bool'},
         'create_option': {'key': 'createOption', 'type': 'DiskCreateOptionTypes'},
         'os_type': {'key': 'osType', 'type': 'OperatingSystemTypes'},
         'image': {'key': 'image', 'type': 'VirtualHardDisk'},
@@ -62,10 +66,11 @@ class VirtualMachineScaleSetOSDisk(Model):
         'managed_disk': {'key': 'managedDisk', 'type': 'VirtualMachineScaleSetManagedDiskParameters'},
     }
 
-    def __init__(self, create_option, name=None, caching=None, os_type=None, image=None, vhd_containers=None, managed_disk=None):
+    def __init__(self, create_option, name=None, caching=None, write_accelerator_enabled=None, os_type=None, image=None, vhd_containers=None, managed_disk=None):
         super(VirtualMachineScaleSetOSDisk, self).__init__()
         self.name = name
         self.caching = caching
+        self.write_accelerator_enabled = write_accelerator_enabled
         self.create_option = create_option
         self.os_type = os_type
         self.image = image
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_update_os_disk.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_update_os_disk.py
index 406be35982ff..b9c2cfe8c1dd 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_update_os_disk.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/models/virtual_machine_scale_set_update_os_disk.py
@@ -19,6 +19,9 @@ class VirtualMachineScaleSetUpdateOSDisk(Model):
     :param caching: The caching type. Possible values include: 'None',
      'ReadOnly', 'ReadWrite'
     :type caching: str or ~azure.mgmt.compute.v2017_12_01.models.CachingTypes
+    :param write_accelerator_enabled: Specifies whether writeAccelerator
+     should be enabled or disabled on the disk.
+    :type write_accelerator_enabled: bool
     :param image: The Source User Image VirtualHardDisk. This VirtualHardDisk
      will be copied before using it to attach to the Virtual Machine. If
      SourceImage is provided, the destination VirtualHardDisk should not exist.
@@ -32,14 +35,16 @@ class VirtualMachineScaleSetUpdateOSDisk(Model):
 
     _attribute_map = {
         'caching': {'key': 'caching', 'type': 'CachingTypes'},
+        'write_accelerator_enabled': {'key': 'writeAcceleratorEnabled', 'type': 'bool'},
         'image': {'key': 'image', 'type': 'VirtualHardDisk'},
         'vhd_containers': {'key': 'vhdContainers', 'type': '[str]'},
         'managed_disk': {'key': 'managedDisk', 'type': 'VirtualMachineScaleSetManagedDiskParameters'},
     }
 
-    def __init__(self, caching=None, image=None, vhd_containers=None, managed_disk=None):
+    def __init__(self, caching=None, write_accelerator_enabled=None, image=None, vhd_containers=None, managed_disk=None):
         super(VirtualMachineScaleSetUpdateOSDisk, self).__init__()
         self.caching = caching
+        self.write_accelerator_enabled = write_accelerator_enabled
         self.image = image
         self.vhd_containers = vhd_containers
         self.managed_disk = managed_disk
diff --git a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/operations/virtual_machine_scale_sets_operations.py b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/operations/virtual_machine_scale_sets_operations.py
index 87c7283ce3f0..21c3229068c0 100644
--- a/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/operations/virtual_machine_scale_sets_operations.py
+++ b/azure-mgmt-compute/azure/mgmt/compute/v2017_12_01/operations/virtual_machine_scale_sets_operations.py
@@ -1726,3 +1726,69 @@ def get_long_running_output(response):
         return AzureOperationPoller(
             long_running_send, get_long_running_output,
             get_long_running_status, long_running_operation_timeout)
+
+    def force_recovery_service_fabric_platform_update_domain_walk(
+            self, resource_group_name, vm_scale_set_name, platform_update_domain, custom_headers=None, raw=False, **operation_config):
+        """Manual platform update domain walk to update virtual machines in a
+        service fabric virtual machine scale set.
+
+        :param resource_group_name: The name of the resource group.
+        :type resource_group_name: str
+        :param vm_scale_set_name: The name of the VM scale set.
+        :type vm_scale_set_name: str
+        :param platform_update_domain: The platform update domain for which a
+         manual recovery walk is requested
+        :type platform_update_domain: int
+        :param dict custom_headers: headers that will be added to the request
+        :param bool raw: returns the direct response alongside the
+         deserialized response
+        :param operation_config: :ref:`Operation configuration
+         overrides<msrest:optionsforoperations>`.
+        :return: RecoveryWalkResponse or ClientRawResponse if raw=true
+        :rtype: ~azure.mgmt.compute.v2017_12_01.models.RecoveryWalkResponse or
+         ~msrest.pipeline.ClientRawResponse
+        :raises: :class:`CloudError<msrestazure.azure_exceptions.CloudError>`
+        """
+        # Construct URL
+        url = '/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Compute/virtualMachineScaleSets/{vmScaleSetName}/forceRecoveryServiceFabricPlatformUpdateDomainWalk'
+        path_format_arguments = {
+            'resourceGroupName': self._serialize.url("resource_group_name", resource_group_name, 'str'),
+            'vmScaleSetName': self._serialize.url("vm_scale_set_name", vm_scale_set_name, 'str'),
+            'subscriptionId': self._serialize.url("self.config.subscription_id", self.config.subscription_id, 'str')
+        }
+        url = self._client.format_url(url, **path_format_arguments)
+
+        # Construct parameters
+        query_parameters = {}
+        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
+        query_parameters['platformUpdateDomain'] = self._serialize.query("platform_update_domain", platform_update_domain, 'int')
+
+        # Construct headers
+        header_parameters = {}
+        header_parameters['Content-Type'] = 'application/json; charset=utf-8'
+        if self.config.generate_client_request_id:
+            header_parameters['x-ms-client-request-id'] = str(uuid.uuid1())
+        if custom_headers:
+            header_parameters.update(custom_headers)
+        if self.config.accept_language is not None:
+            header_parameters['accept-language'] = self._serialize.header("self.config.accept_language", self.config.accept_language, 'str')
+
+        # Construct and send request
+        request = self._client.post(url, query_parameters)
+        response = self._client.send(request, header_parameters, stream=False, **operation_config)
+
+        if response.status_code not in [200]:
+            exp = CloudError(response)
+            exp.request_id = response.headers.get('x-ms-request-id')
+            raise exp
+
+        deserialized = None
+
+        if response.status_code == 200:
+            deserialized = self._deserialize('RecoveryWalkResponse', response)
+
+        if raw:
+            client_raw_response = ClientRawResponse(deserialized, response)
+            return client_raw_response
+
+        return deserialized