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Summary
To illustrate how much room can be available on a
systems disk, let's assume you have an 1132 Printer
and a 1442 Card Read Punch, and you wish to place
a very large commercial-type data file on the disk.
There is no Fixed Area.
After originally loading the Monitor, you
*DUMPLET and determine from the last 1DUMY
record that the size of Working Storage is 49F3 disk
blocks, or about 1183 sectors, 74% of the disk.
To increase this amount, you can take the three
steps suggested earlier:
1. Delete the FORTRAN compiler and the Assem-
bIer, gaining 120 sectors.
2. Delete the I/O subroutines you don't need, in
this case gaining about 37 1/2 sectors.
Section
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20
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3. Delete the technically oriented computational
subprograms, gaining about seven sectors.
You thereby have increased the available disk
space (WS) by 164 sectors, to 1347, or 84% of the
disk.
Of course, you cannot compile any programs
with this disk, nor can you execute any jobs (noncom-
mercial) requiring some of the computational sub-
routines that have been deleted.
From the number
of sectors available you must subtract the space re-
quired for your programs. The remainder is avail-
able for your data file(s).
The task is easier with a non-systems disk.
One
cylinder (eight sectors) is always required for the
Cylinder 0 area, plus two more if you have defined
a Fixed Area. That leaves either 1584 or 1576
sectors for your programs and data files.
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