We have a six node AFF cluster, it is currently tight on space usage, is that a good idea to expand it with StorageGrid or add a HA pair of FAS? we have mixed data of CIFS, LUNs for SQL, Exchange, ESX and other applications. we know we have some old image data in CIFS servers, may be good for StorageGrid, we only keep snapshot a few weeks locally, there are no much we can save to move snapshots to StorageGrid, can we use StorageGrid for high performance required volumes such as SQL, ESX or other application. Worry about performance issues. Can someone share some experience about successful examples about using StorageGrid?