diff --git a/src/bosh-director/lib/bosh/director/disk_manager.rb b/src/bosh-director/lib/bosh/director/disk_manager.rb
index <HASH>..<HASH> 100644
--- a/src/bosh-director/lib/bosh/director/disk_manager.rb
+++ b/src/bosh-director/lib/bosh/director/disk_manager.rb
@@ -117,8 +117,6 @@ module Bosh::Director
       end
 
       if agent_mounted_disks(instance_model).include?(disk_cid)
-        @logger.info("Stopping instance '#{instance_model}' before unmount")
-        agent_client(instance_model).stop
         @logger.info("Unmounting disk '#{disk_cid}'")
         agent_client(instance_model).unmount_disk(disk_cid)
       end
Remove unneeded call to stop in unmount_disk action

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