Unicenter CA-Scheduler Job Management for VSE User Guide

7.5 Multiple CPU Considerations
7.5.1 Installation Considerations
When installing Unicenter CA-Scheduler, you have to indicate that it is going
to run in a multi-CPU environment which means that five things have to be
done.
1. You must code the parameter MCPU=YES in the CAIJGEN macro, which
indicates that you have a multi-CPU environment.
2. You must code the parameter SHARE=YES in the CAIJGEN macro. This
specifies that you are to share the Unicenter CA-Scheduler database and
associated files, which includes the database, the tracking file, the staging
library, and the documentation file and optionally the Unicenter CA-Driver
procedure library. This must always match the SHARE field on the
FORMAT and RESTORE commands (see number 4, following). By using
the SHARE database facility, you ensure the integrity of accessing the
databases and libraries from different CPUs at the same time, which is
done with software (spin) locks and not with IBM LOCKs.
3. You must code the parameter SYSID=(sysid1,sysid2,...) in the CAIJGEN
macro, which specifies the valid SYSIDs in your multi-CPU environment.
The first SYSID in the list is the default SYSID that governs which CPU
tracks schedules, which will be explained later. The list is also used to
validate any SYSID defined with a schedule or job.
4. You must specify INSRSYS=YES in the CAIJGEN macro to cause Unicenter
CA-Scheduler to insert the SYSID on the POWER job statement
automatically for designated jobs (jobs defined with a value for the SYSID
keyword on their job base records).
5. You must code the parameter SHARE=YES in the FORMAT statement
when initializing the Unicenter CA-Scheduler database (CAIJMST), the
tracking file (CAIJTRK), the staging library (CAIJSTG), and the
documentation file (CAIJDCM). It must also be performed when
formatting the the Unicenter CA-Driver procedure library. See the
Unicenter CA-Driver Systems Programmer Guide. This is done by executing
the program CAJUTIL0.
These steps are discussed further in the Unicenter CA-Scheduler Systems
Programmer Guide.
7.5.2 Control Of Jobs in a Multi-CPU Environment
Discussion in this topic pertains to multi-CPUs in a POWER shared spool
environment. This can be depicted as:
7-20 Unicenter CA-Scheduler User Guide