Galaxy Expand - High Availability UCX Configuration

UCx High Availability Server Configuration

The Galaxy Expand is ideally suited for creating a High Availability solution through the use of redundant Server Cards. The chassis is always equipped with dual power supplies providing maximum protection against power outages, as the two power supplies can be connected to different power circuits. A High Availability deployment using Galaxy Expand requires the use of two separate chassis with a server card in each one.

Galaxy Expand Hardware Requirements

Required cards

When deployed as a High Availability Redundant Configuration (HARC) UCx server, the configuration requires two identical Galaxy Expand Server Cards. The choice of which Server card is based upon the number of extensions required or the number of simultaneous calls required for the call server.  The capacities of the server cards is described in Galaxy Expand - Platform Hardware.

Optional Cards

In a HARC system, all connecting equipment must use IP communication between the UCx and itself.  For this reason, only the Telephony interface cards using the Ethernet backplane can be used in the chassis.  As noted in Galaxy Expand - Platform Hardware, these cards include the DSM16, PRI, and FXS16 cards.  If a single chassis is used, these can be configured in any of the nine remaining slots. An additional server card can also be installed, but the third server card would be used as a standalone InfinityOne server, which is described later in this document. Note that for an all IP based configuration with only IP telephones and SIP trunks, no telephony cards are required. 
For details on how to configure the optional Telephony Interface Cards, refer to the following:

  1. DSM16 Card Configuration (Ethernet Enabled)
  2. PRI Card Configuration (Ethernet Enabled)
  3. FXS16 Card Configuration (Ethernet Enabled)

Server Card Network Connection and Configuration

Slot assignment for Required Cards

When deploying the Galaxy Expand as a High Availability UCx server, you will be required to install one of the selected Galaxy Expand Server Cards in slot 7a as noted in Galaxy Expand - Platform Hardware. When the single slot 2930 Call Server card is used the corresponding "b" slot for that location should be covered with a blank card slot cover. The Server card in the second chassis shold also be installed in card slot 7.



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