NetBatch Management Programming Manual

Introduction

NetBatch Management Programming Manual—522462-003

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NetBatch Subsystem Description

The NetBatch subsystem lets your organization automate job scheduling, startup, and

management on NonStop systems. The subsystem has four core components (in

addition to the SPI-compatible programmatic interfaces and the NB^JOB^SUBMIT

procedure call described in this manual):

•

A scheduler program (NETBATCH)

•

An interactive interface (BATCHCOM)

•

A calendar-generation program (BATCHCAL)

•

An executor program (NBEXEC)

This subsection briefly describes these components. For detailed descriptions, and a

comprehensive overview of the NetBatch subsystem, see the NetBatch Manual. For a

graphical representation of a sample NetBatch subsystem, see Figure 1-1 on page 1-4.

NETBATCH

NETBATCH is the program file ID of the NetBatch scheduler. The scheduler is a

process-pair server that stores job records in its database. It schedules and starts the

jobs, tracks and controls their execution, and records details of their termination. It also

controls, through its classes and executors, the distribution of jobs among processors

in your system.

BATCHCOM

BATCHCOM is the program file ID of the NetBatch command interpreter. BATCHCOM

enables interactive and noninteractive manipulation of NetBatch objects (the scheduler,

the scheduler’s executors and classes, and attachment sets and jobs).

BATCHCAL

BATCHCAL is the program file ID of the NetBatch calendar program. The program

allows you to generate a calendar file containing a series of dates and times called run

times. You can schedule a job to run automatically at those times by using the

CALENDAR attribute to assign the file to the job. BATCHCAL also can display run

times in a calendar file and reformat an old calendar file to the current format.

NBEXEC

NBEXEC is the file ID of the NetBatch NonStop executor program. Compatible with

BPROC (the batch execution process of the obsolete product MIS Batch), NBEXEC

executes control file commands, supplies data to started processes, and logs process

output. NBEXEC can run as a process pair and offers a simple-but-powerful job control

language that includes error-testing and job-recovery facilities.