following information carefully before you proceed with the installation:
can only be installed on virtual machines. Unified CCX will not install on bare
configuration and domain fields are mandatory for Unified CCX installation.
Both forward and reverse lookups are required. DNS is required for the
VoIP Monitor Subsystem and
Unified CCX Chat feature to function and for integration with
ICM by hostname in Unified IP IVR.
Install Unified CCX on an existing server formats the hard drive, it overwrites
all existing data on the drive. It also upgrades the system BIOS, firmware, and
Redundant Array of Inexpensive Disks (RAID) configuration if they are outdated.
you connect each Unified CCX node to an uninterruptible power supply (UPS) to
protect the Unified CCX server from unexpected power failure that damages the
All servers in
a cluster must run the same release of Unified CCX. The only exception is while
upgrading cluster software, during which a temporary mismatch is allowed.
server by using a static IP address so that the server IP address remains
attempt to perform any configuration tasks during the installation.
Be aware that
the field values (namely hostname and passwords) that you enter while you are
running the installation program are case-sensitive. Hostname must be in lower
case and the character limit is 24 characters.
the administrator username is not the same as that of any end user in CUCM.
insert or remove a USB drive, you might see error messages on the console
assuming drive cache: write through." You can safely ignore these messages.
If the system
time is from an Network Time Protocol (NTP) server (mandatory for VMware
deployments), verify that the first node synchronizes with the NTP server
before you install a second node.
If the first
node fails to synchronize with an NTP server, installation of a second node
firewall is in the routing path, disable the firewall between nodes. Increase
the firewall timeout settings until you complete the installation.
network interface card (NIC) speed and duplex settings of the switch port to
which you will connect the new server.
PortFast on all switch ports that are connected to Cisco servers.
Do not run
Network Address Translation (NAT) or Port Address Translation (PAT) between
license file. For more information, see
Obtain License MAC Before Installation.