Release Notes

New features introduced in 4.0(1.57)
Cisco TelePresence Server Software Release Notes (4.0(2.8)) Page 16 of 36
n 2 x Intel Xeon processor E5-2600 series with 2.4GHz or faster processor
n At least 8 GB RAM to be dedicated to Cisco TelePresence Server on Virtual Machine
n At least 53 GB of local or SAN storage
n IOPS (input/output operations per second) and storage perfomance must meet or exceed the following
requirements:
Mean # IOPS Mean read latency Mean write latency Peak read latency Peak write latency
6 4ms 10ms 15ms 15ms
Table 7: Storage performance requirements
n 1 GigE NIC
n The OVA is pre-configured to have 8GB of RAM, and 8 or 16 CPUs
n No oversubscription of resources is allowed, even if hyperthreading is enabled
n Hypervisor version ESXi 5.0 Update 1, or ESXi 5.1
n VMware client to access Hypervisor directly or through Virtual Center to deploy the OVA
Conferencing capacity changes
Number
of
CPUs
Capacity
in 3.1
(1.82)
Capacity
in 3.1
(1.96)
Capacity in 4.0(2.8)
8 (16
vCPU)
Not
supported
8
HD calls
Not supported
10 (20
vCPU)
12
HD calls
12
HD calls
Not supported. We recommend upgrading software and changing
VM configuration, see Upgrading the Cisco TelePresence Server on Virtual
Machine [p.31]
8 (8
vCPU)
(BE6k)
Not
supported
Not
supported
8 HD calls (New configuration)
16 (16
vCPU)
Not
supported
Not
supported
16 HD calls (New configuration)
Table 8: Cisco TelePresence Server on Virtual Machine capacity by release version and number of vCPUs
For example, on an 8 CPU virtual machine, the TelePresence Server can use 4 screen licenses and this
capacity can be used to process up to 8 HD (720p30) calls, or a larger number of lower resource calls. See
the Platform licensing comparison [p.20] for more examples of how screen licenses translate into
conferencing capacity.
Virtual machines with intermediate numbers of vCPUs are treated as the lower of the supported levels for the
purpose of running TelePresence Server. That is, if there are between 8 and 15 vCPUs, the TelePresence
Server can only use 4 screen licenses. If there are 16 or more vCPUs, the TelePresence Server can use up
to 8 screen licenses. For example, after upgrading a VM with 20 vCPUs to this version, and changing the
number of vCPUs to 16, the TelePresence Server can use up to 8 screen licenses. You must have a 1:1
mapping from vCPUs to physical cores.
Note: Adding more vCPUs will not increase the TelePresence Server's ability to use screen licenses beyond
the supported levels.