diff --git a/components/schemas/containers/summaries/VolumeSummary.yml b/components/schemas/containers/summaries/VolumeSummary.yml
index ed46f3b2..e8c7c941 100644
--- a/components/schemas/containers/summaries/VolumeSummary.yml
+++ b/components/schemas/containers/summaries/VolumeSummary.yml
@@ -21,3 +21,8 @@ properties:
           id:
             $ref: ../../ID.yml
       - type: "null"
+  removed:
+    description: The time stamp of the volume's removal, if applicable.
+    oneOf:
+      - $ref: ../../DateTime.yml
+      - type: "null"
diff --git a/components/schemas/vms/task/VirtualMachineAddVolumesAction.yml b/components/schemas/vms/task/VirtualMachineAddVolumesAction.yml
new file mode 100644
index 00000000..99b7c3ce
--- /dev/null
+++ b/components/schemas/vms/task/VirtualMachineAddVolumesAction.yml
@@ -0,0 +1,15 @@
+title: VirtualMachineAddVolumesAction
+type: object
+required:
+  - action
+  - contents
+properties:
+  action:
+    type: string
+    enum:
+      - volumes.add
+  contents:
+    type: array
+    description: Array of volume configs to add.
+    items:
+      $ref: ../config/volumes/VirtualMachineVolumeConfig.yml
diff --git a/components/schemas/vms/task/VirtualMachineRemoveVolumesAction.yml b/components/schemas/vms/task/VirtualMachineRemoveVolumesAction.yml
new file mode 100644
index 00000000..e546e527
--- /dev/null
+++ b/components/schemas/vms/task/VirtualMachineRemoveVolumesAction.yml
@@ -0,0 +1,15 @@
+title: VirtualMachineRemoveVolumesAction
+type: object
+required:
+  - action
+  - contents
+properties:
+  action:
+    type: string
+    enum:
+      - volumes.remove
+  contents:
+    type: array
+    description: Array of volume IDs to remove.
+    items:
+      $ref: ../../ID.yml
diff --git a/components/schemas/vms/task/VirtualMachineTask.yml b/components/schemas/vms/task/VirtualMachineTask.yml
index f98e1c62..ffcd2462 100644
--- a/components/schemas/vms/task/VirtualMachineTask.yml
+++ b/components/schemas/vms/task/VirtualMachineTask.yml
@@ -10,6 +10,8 @@ discriminator:
     ip.allocate: VirtualMachineIpAllocateAction.yml
     ip.unallocate: VirtualMachineIpUnallocateAction.yml
     volumes.reconfigure: VirtualMachineReconfigureVolumesAction.yml
+    volumes.add: VirtualMachineAddVolumesAction.yml
+    volumes.remove: VirtualMachineRemoveVolumesAction.yml
 oneOf:
   - $ref: VirtualMachineStartAction.yml
   - $ref: VirtualMachineStopAction.yml
@@ -19,3 +21,5 @@ oneOf:
   - $ref: VirtualMachineIpAllocateAction.yml
   - $ref: VirtualMachineIpUnallocateAction.yml
   - $ref: VirtualMachineReconfigureVolumesAction.yml
+  - $ref: VirtualMachineAddVolumesAction.yml
+  - $ref: VirtualMachineRemoveVolumesAction.yml