Load Balancing

The array software provides load balancing through a modified DNS round robin. The Netra Proxy Cache array forms its own DNS zone that consists of the service addresses associated with the proxy cache service. This zone is identified by its own domain name.

When a host fails or becomes overloaded, the array software removes the host from the array's DNS round robin, so that the down host receives no new client requests. This process is discussed in greater detail in "The Role of DNS".