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Unicenter CA-Scheduler Job Management for VSE User Guide

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7.6 NJE Processing<br />

7.6 NJE Processing<br />

NJE processing provides the ability to go beyond one data center complex.<br />

That is, you can schedule and control production at different locations (even in<br />

different cities). The different locations can have just one CPU or they may<br />

have a multi-CPU environment, though each CPU must be a node on the<br />

VTAM network.<br />

In some cases, you may want to have just interdependencies across locations<br />

properly handled. In other cases, you may want to go beyond this and have<br />

jobs at one location submitted to execute at another location. These locations<br />

are called nodes in the network of computer sites (or systems). The network<br />

consists of two or more of these interconnected systems (nodes) that<br />

participate in a VTAM communications network.<br />

Using more common terminology, a job at one node can have a predecessor at<br />

another node and <strong>Unicenter</strong> <strong>CA</strong>-<strong>Scheduler</strong> will know to wait <strong>for</strong> it. Each node<br />

will be able to schedule its own work as if it were autonomous, but when it<br />

has interrelationships with other nodes, they will be upheld properly. This is a<br />

decentralized (Master/Master) environment. Each of these Master<br />

environments (nodes) can have its own Master/Master or Master/Slave<br />

environment and may be one or more CPUs themselves that utilize shared<br />

spool.<br />

Following are some samples that describe:<br />

■<br />

■<br />

■<br />

Cross-node job submission<br />

Cross-node dependencies<br />

Cross-node communications.<br />

7.6.1 Cross-Node <strong>Job</strong> Submission<br />

In a NJE environment, it is possible to have <strong>Unicenter</strong> <strong>CA</strong>-<strong>Scheduler</strong> cause<br />

work to be submitted to run on other nodes. The appropriate <strong>VSE</strong>/POWER<br />

JECL parameters (if omitted from the submitted JCL) are generated to handle<br />

this, but what you want to accomplish here is to have you understand how<br />

<strong>Unicenter</strong> <strong>CA</strong>-Sheduler operates in this environment.<br />

The following depicts the general environment that the samples will reference.<br />

7-26 <strong>Unicenter</strong> <strong>CA</strong>-<strong>Scheduler</strong> <strong>User</strong> <strong>Guide</strong>

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