Basic guidelines for conversions
Issue 1.1 June 2005 133
Chapter 4: Enterprise Survivable Server
Conversions
During the evolution of enterprise communication networks, it may be necessary to convert a
standard server to an Enterprise Survivable Server (ESS server) or Main server, a Main server
to an ESS server, or an ESS server to a Main server.
These conversion procedures detail only the specific steps required for the ESS feature. Other
steps (such as upgrading, re-mastering, or completely configuring a media server) are found in
standard documents that are referenced in this document.
These conversion procedures are covered here:
● Existing ESS server to Main server on page 134
● Existing media server to ESS server on page 137
● Manual Backup Server to ESS server on page 140
● ESS server to Manual Backup Server on page 142 (Not Supported)
Basic guidelines for conversions
These points may apply to any of the conversion procedures presented here.
1. For any conversion involving both the Main server and the ESS servers, the ESS servers
should be addressed first. When they are not controlling Port Networks they may be
converted without disrupting service.
2. For any conversion, if possible, disconnect ESS servers from the LAN/WAN until the Main
server is operational. Then connect the ESS servers to the LAN/WAN and allow them to
register with the Main server.
3. Two Main servers should never be active on the LAN/WAN at the same time. When
converting a media server to a Main server, care should be taken to disconnect or power
down an existing Main server before the new Main server comes online.
4. When converting media servers, ESS server to Main server, or Main server to ESS server, a
new license file is required. There are no exceptions and no way to turn on the required
features without a new license file.
5. Each Main server and ESS server requires a unique IPSI serial number in order to generate
a license file in RFA. This means that you cannot have more servers requiring licenses (i.e.
Main server plus all ESS servers) than there are physical IPSI circuit packs in the system.
With high availability (duplex IPSI) systems both active and standby IPSI serial numbers
may be used to generate individual license files.
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