NetBatch-Plus Reference Manual

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NetBatch-Plus Reference Manual—522461-002
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Field Descriptions
Tapedrives
Use the Tapedrives field to set the TAPEDRIVES scheduler attribute. The attribute
specifies the maximum number of tape drives available for use.
The scheduler calculates the number of tape drives available for job processing by
using its TAPEDRIVES attribute to initialize an internal counter. When you submit a
job, the scheduler compares the number of drives required by the job with the counter.
If the number is:
•
Less than or equal to the counter, the job is scheduled immediately for execution
and the number subtracted from the counter. The number is added to the counter
when the job finishes executing.
•
Greater than the counter but no greater than the TAPEDRIVES scheduler attribute,
the job is scheduled for execution when the required number of drives is available.
Jobs waiting for tape drives are flagged with a state of TAPE.
•
Greater than the TAPEDRIVES scheduler attribute, the job is never scheduled for
execution. To avoid this, do not specify more drives for a job than are specified by
the TAPEDRIVES scheduler attribute. If it does occur, to resolve it, do one of:
°
Increase the number of drives specified by the TAPEDRIVES scheduler
attribute
°
Reduce the number of drives required by the job
To set the attribute, enter an integer in the range 0 through 99 specifying the number of
tape drives. The default value is 2.
To display the number of tape drives configured and the number in use, use the
Scheduler Status screen.
Max Lines
Use the Max Lines field to set the DEFAULT-MAXPRINTLINES scheduler attribute.
The attribute specifies the maximum number of print lines for jobs whose
MAXPRINTLINES attribute is not specified.
The attribute is effective only for jobs whose output files are spooler processes. For
information on how the attribute affects job output, see Job Definition on page 6-102.
To set the attribute, enter an integer in the range 120 through 65534 specifying the
maximum number of print lines. The default value, NOMAX, specifies no maximum.
To avoid setting conflicting DEFAULT-MAXPRINTLINES and
DEFAULT-MAXPRINTPAGES attributes, do one of:
•
Set both attributes to NOMAX (the default values)
Note. The scheduler cannot determine the actual number of tape drives available on your
system. Consequently, make sure you check tape drive availability before you specify the
TAPEDRIVES scheduler attribute.