How many Cisco TelePresence Server MSE 8710 blades can be configured in a cluster?

A.
two

B.
up to four

C.
up to eight

D.
up to 16

E.
none; Cisco TelePresence Server does not support clustering

Explanation:
Up to four Cisco TelePresence Server MSE 8710 blades can be configured in a cluster. A cluster of blades
appears as if the blades are a single TelePresence Server. All blades in a cluster must be of the same type and
run the same version of software. However, several different clusters can exist within an MSE chassis, such as
the MSE 8000 chassis. The MSE 8000 supervisor blade must be running software version 2.1 or higher in order
to support clustering.
One blade takes the role of the master blade, and the remaining blades take the role of slave blades. The
master blade controls all cluster functions. Slave blades can manage only a few settings, such as those related
to network configuration, logging, and upgrading. In addition, the master blade inherits all of the screen licenses
allocated to the slave blades. If the master blade is restarted, the slave blades are also restarted. If the
supervisor blade restarts or is removed, the cluster continues to function.

Cisco: Cisco TelePresence TelePresence Server 8710 and 7010 in Locally Managed Mode, Printed Help:
Understanding clustering (PDF)