Remote load balancing example

In the following example, three volumes are cross-mounted and served by two FSCs (FSC1 and FSC2) which are serviced by an external load balancer. Clients are assigned to a remote FSC cache server, which provides configuration information and caching at the remote site. As in the previous example, direct FSC routing enables all of the clients to access volume data through the load balancer, which forwards the requests to FSC1 and FSC2. These two FSCs share equal responsibility for providing volume data access to the clients. Additionally, an FSC concentrator can be used as a local cache concentrator and/or a router node for requests to additional FSC groups. This implementation of remote external load balancing is configured using the following XML. Adding the fscConcentrator element to an FSC group in the fmsmaster_fscid.xml file allows it to act as a router and cache concentrator for data in this FSC group and/or other FSC groups. Defining the loadbalancer id attribute assigns the load balancer preference for requests for data it serves (even through it is a lower priority). Without this preferential treatment, all incoming requests are routed through the FSC concentrator. Copy