SCHEDxx (PPT, master trace table, and abend codes for automatic restart)
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 As of MVS/SP 5.1, the EDT statement is no longer
valid.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.
- NORESTART
- Allows you to delete system and user abend codes from the list of abend codes that are eligible for automatic restart.
- 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.
- RESTART
- Allows you to add user abend codes to the list of abend codes that are eligible for automatic restart.