Describe the issue: Information on snapshot based mirroring can be made more descriptive by adding more details on the snapshot migration details and a diagram explaining the details. If possible with reference to EC pool also. Describe the task you were trying to accomplish: Understand how snapshot based mirroring happens. Suggestions for improvement: Mentioned above. Product Version: 5.x Environment Details: NA Any other versions of this document that also needs this update: Details can be cherry-picked to 4.x also Additional information: