Replacing a Failed Storage Node
You can replace a failed Storage Node, or one that is in the process of failing. Upgrading a healthy machine to another one with better specifications is also a common Storage Node replacement scenario. Generally, you should repair the underlying problem (be it hardware or software related) before proceeding with this procedure.
 There are two ways to replace a failed Storage Node: 
                     
                  - 
                           A new, different Storage node 
- 
                           An identical Storage Node 
This section describes both replacement possibilities.
Note:
 Replacing a Storage Node qualifies as a topology change. This means that if you want to restore your store from a snapshot taken before the Storage Node was replaced, you must use the Load program. See Using the Load Program for more information.