When Source Side Deduplication Gateway device configured on cluster node it should failed with the following :
[Major] From: BSM@Cell_Manager_hostname.xxx.yyy "backup_specification" Time: 31.03.2016 09:18:52
Got error: "StoreOnce error: StoreOnce device offline, network error occurred or secure communication failed while contacting the StoreOnce device" when contacting "Device_on_GW" B2D device!
In order to workaround this failure need to configure GW device on agent that is not a part of a cluster .