What two benefits can be derived from having multiple utility servers?

A second utility server can providea backup in case the main utility server dies.

Only one utility server is allowed per server pool.

A second utility server can be configured to switch to a Server Pool Master role if no more ServerPool Masters are available.

A second utility server can help load balance high I/O loads.

A second utility server is only needed if HA is turned on. In that case, it can provide a backup in case the main utility server dies