This sets the servers that should be utilised by this memcache adapter.
Servers should be defined one per line and consist of a server address and optionally a port and weight.
If no port is provided then the default port (11211) is used.

For example:
<pre>
server.url.com
ipaddress:port
servername:port:weight
</pre>

If *Enable clustered servers* is enabled below, there must be only one server listed here. This would usually be a name that always resolves to the local machine, like 127.0.0.1 or localhost.