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Load-balanced channel start

 

A shared transmission queue can be serviced by an outbound channel running on any channel initiator in the queue-sharing group. Load-balanced channel start determines where a start channel command is targeted. An appropriate channel initiator is chosen that has access to the necessary communications subsystem. For example, a channel defined with TRPTYPE(LU6.2) will not be started on a channel initiator that only has access to a TCP/IP subsystem.

The choice of channel initiator is dependant on the channel load and the headroom of the channel initiator. The channel load is the number of active channels as a percentage of the maximum number of active channels allowed as defined in the channel initiator parameters. The headroom is the difference between the number of active channels and the maximum number allowed.

Inbound shared channels can be load-balanced across the queue-sharing group by use of a generic address, as described in Listeners.

 

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