Nortel Networks NN44470-100 - Manual (Page 14)

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MAS commissioning
Nortel Media Application Server 6.0 for AS 5300
Fundamentals
NN44470-100 01.01 Standard
Release 6.0 03 June 2008
Copyright © 2008, Nortel Networks
To view installed packaged applications, use the Nortel MAS Console. The
Nortel MAS Console lists the application version and the current operational
state for that application. An example of a packaged application would be
Recorder.
Configuration data
Each packaged application has one or more configuration parameters that
you can modify to alter the behavior of the application. To view and modify
these application-specific parameters, use the Nortel MAS Console.
Operational state
Each packaged application has an operational state that you can view and
modify. To view and modify the operational state of an application, use the
Nortel MAS Console.
You can select one of the following operational states:
• Unlocked—This is the default. Normal call processing is performed for the
application.
• Locked—When the application enters a Locked state, existing sessions for
that application are terminated and the system redirects new traffic. You
typically place the application into a Locked state when performing
maintenance (for example, application upgrades) to the application.
• Pending Lock—When the application enters a Pending Locked state, the
system redirects new traffic for that application, while existing sessions are
preserved.
MAS clusters
A MAS cluster is a collection of MAS nodes that work closely together. A MAS
cluster shares the following resources:
• SNTP server for clock synchronization
• persistent content storage
• Controller Peer Ring
• redundant license servers
A cluster consists of N+1 active MAS servers where N is a maximum of 7 for
high availability and redundancy. An additional server is used as a spare to
accommodate one server failure. The spare server is active and handling
traffic, but the entire system is engineered to N servers of capacity (not N+1).
This ensures that enough remaining capacity is available to handle peak traffic
if one server fails.
The following terminology describes the different cluster types:
• Duplex—a cluster consisting of two MAS nodes