Compaq AA-Q88CE-TE manual Starting and Setting Up RTR Changing a Facility

Starting and Setting Up RTR

2.4 Changing a Facility

Example 2–3 Reconfiguration Using Delete and Create Facility

% rtr

RTR> stop rtr/node=FE3 1

RTR> delete facility funds_transfer/node=TR2 2 RTR> create facility funds_transfer/node=TR2 - 3

_RTR>	/frontend=(FE1,FE2) -
_RTR>	/router=TR2 )
RTR> delete facility funds_transfer/node=TR1 4
RTR> create facility funds_transfer/node=TR1 - 5
_RTR>	/frontend=(FE1,FE2) -
_RTR>	/router=TR1 )

1RTR is stopped on node FE3, the node being excluded from the network. In order to prevent transactions being interrupted or aborted, application processes should be stopped in an orderly manner before issuing the 'stop rtr' command. Alternatively, a stop rtr /abort command will force application processes using RTR to exit, aborting or interrupting any outstanding transactions.

2The facility is deleted on node TR2. Any frontends that were connected to TR2 will connect to the remaining router, node TR1.

3The facility is created on node TR2, excluding node FE3 from the frontend list. This facility has started when the start message appears in the RTR log.

4The facility is deleted from node TR1. Frontends FE1 and FE2 now connect to router TR2.

5The new facility is created on node TR1, again excluding node FE3 from the frontend list. The frontends now distribute their connections to the router nodes TR1 and TR2 according to the load sharing algorithm. The system is again fully operational.

In the example in Figure 2–1, assume that a new router node TR3 and new frontend FE4 are being added to the facility funds_transfer. The extended configuration is shown in Figure 2–2. This diagram shows all possible connections. The frontend connects to only one router at a time.

Starting and Setting Up RTR 2–5