Use the SCHEDxx member of parmlib to specify the following:
- Size of the master trace table.
- Abend codes that are eligible for automatic restart.
- Programs that are to be included in the program properties table
(PPT) and thus receive special attributes.
Note: In previous releases of MVS™,
SCHEDxx allowed you to define attributes for the eligible device table
(EDT) through the EDT statement. As of MVS/SP 5.1, the EDT statement is no longer
valid. Instead, use HCD to define attributes for the EDT in
the input/output definition file (IODF). For more information about
defining the EDT, see
z/OS HCD Planning.
You can use the following statement types in SCHEDxx:
- MT
- Defines the size of the master trace table if one exists.
- PPT
- Allows the installation to specify a list of programs that require
special attributes or to change the attributes of the IBM-supplied
default entries in the PPT (see Table 1). The
system scans this PPT to determine which, if any, special attributes
apply to the program it is initiating.
Note: - Usually, you should not add or change programs in the program
properties table (PPT) unless the instructions for installing a program
direct you to do so. If you do add a program to the PPT, or change
an existing entry's properties, ensure that the program can function
with the properties you have assigned to it. For example, a program
designed to run in program protect key 8 might not be able to run
in key 10 because of hardcoded key specifications in the program.
If you were to specify KEY(10) in this case, the program will not
function correctly.
- If the processor that your system runs on does not support program
protect key 9, do not assign key 9 to any programs. For specific processor
models, see z/OS Planning for Installation.
- RESTART
- Allows you to add user abend codes to the list of abend codes
that are eligible for automatic restart.
- NORESTART
- Allows you to delete system and user abend codes from the list
of abend codes that are eligible for automatic restart.