Allow etcd, cache setup to exit when starting gateway mode (#9842)

- Initialize etcd once per call
- Fail etcd, cache setup pro-actively for gateway setups
- Support deleting/updating bucket notification,
  tagging, lifecycle, sse-encryption

cmd/erasure-zones.go

@@ -1867,7 +1867,7 @@ func (z *erasureZones) getZoneAndSet(id string) (int, int, error) {
 			}
 		}
 	}
-	return 0, 0, fmt.Errorf("ID(%s) %w", errDiskNotFound)
+	return 0, 0, fmt.Errorf("DiskID(%s) %w", id, errDiskNotFound)
 }
 
 // IsReady - Returns true, when all the erasure sets are writable.