4.0.0 HP Polyserve Matrix Server Administration Guide (T5392-96052, March 2010)

can transfer the virtual host to a backup interface on another server and the network
traffic will continue.
The following example shows the virtual host failover mechanism. Servers A and B
provide the http service, which is accessed with the virtual host www.xvz.com. Each
server is configured with an http service monitor and a GATEWAY device monitor
to ping the router.
The failover operation to another network interface has minimal impact on clients.
For example, if clients were downloading Web pages during the failover, they would
receive a “transfer interrupted” message and could simply reload the Web page. If
they were reading Web pages, they would not notice any interruption.
If the active network interface fails, only the virtual hosts associated with that interface
are failed over. If the underlying server has other virtual hosts configured on another
network interface, those virtual hosts will continue to access that server.
For more information about failover, see “Virtual hosts and failover” on page 196.
Guidelines for creating and using virtual hosts
When creating virtual hosts, follow these guidelines:
Configure virtual hosts190