Avaya S8100 Series Manual page 758

Migrating a DEFINITY Server R to an S8700-Series Media Server
The order in which these high-level stages are listed represents a recommended sequence to
follow. Some of the stages can occur in a different sequence without negative consequences.
Local practice and resource management dictates the actual sequence.
IPSI placement decisions
In a direct-connect system Avaya installs the IPSIs in the PPN rather than an EPN because of
the fiber connections and administration between the PNs. If you install the IPSIs in an EPN in a
three-cabinet system, you might have to reconnect and readminister the optical fiber that
connects the EI circuit packs. In a two-cabinet system, this would not be a problem. Even in a
CSS system, Avaya recommends that you install the IPSIs in the PPN to speed up the system
startup.
You then install the rest of the IPSIs in as many cabinets as you can. Avaya does not
recommend that you install IPSIs in both halves of a dual PN cabinet. If the cabinet fails, two
IPSI PNs are lost. However, if in a 10-EPN system, 7 of the EPNs are DS1-C remoted and the
other 3 PNs are one PPN cabinet and one dual PN cabinet. Putting IPSIs in both halves of the
dual PN and the converted PPN eliminates running remote IPSI connections.
If you install the IPSIs in the PNs and the PPN, prior to the migration, you save out-of-service
time because you then can install, connect, and program the IPSIs and test the connectivity to
the media server. To save more out-of-service time, you also can upgrade the firmware on the
IPSIs if needed before the actual cutover. If you install the IPSIs in the PPN and then reinstall
the IPSIs in the new carriers, you can ensure that the IPSIs work correctly before the cutover.
Installing and configuring the S8700-Series Media Server complex
In this stage you install the S8700-Series Media Servers, uninterruptible power supplies
(UPSs), Ethernet systems, and connecting cables. After you complete the installation, you then:
Configure the components
●
Install the license file and Avaya authentication file
●
Upgrade and patch the software
●
For more information on how to install the media server complex and configure the media
servers, see Installing and Configuring an Avaya S8700 Series Media Server (03-300145).
You can complete this stage any time before you transfer the existing translations. These tasks
do not affect service to the existing DEFINITY server system.
758 Upgrading, Migrating, and Converting Media Servers and Gateways