Subject:
It is possible to manage nodes that are remote from each other i.e. East coast - West coast, in a single grid.
Detail:
You can create a grid with nodes that are remote from each other as long as you have a stable WAN network that is shared between the nodes in the grid.
The nodes do not need to be on the same subnet, just a stable WAN connection that can communicate with the grid master and the other nodes in the grid.
Note: WAN links can effect remote replication and tuning considerations may be needed, please review the link below for more details:
QuantaStor_Administrators_Guide#Remote_Replication_Bandwidth_Throttling
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