Saturation state
Message: EXC0874 ADDRESS SPACE SATURATION=i
where i is a digit in the range 0 through 2 indicating the saturation level.
Level | Effects on system | Operator action |
0 | Normal system processing | None |
1 | No new batch jobs are started | Inform systems administration |
2 | No new batch jobs are started |
Saturation prevention measures
The occurrence of a saturation condition indicates that the system is overloaded. If the system is affected by recurrent saturation, the system configuration is inadequate.
It may therefore be necessary to decrease the size of the user address space (see also the “System Installation” manual [55], Modifying the BS2000 organization program, procedure SYSPRC.BS2000-EXEC.<ver>).
These configuration options are not available on SUs x86.
Examples for the reduction of system address space requirements
Reduce the number of resident catalog buffers for specific pubsets.
Export unused pubsets.
Unload large applications or programs.
Considerably reduce the number of tasks in the system.
You are expressly warned not to unload large subsystems. Even though this normally results in a short-term alleviation of the saturation state it is often not possible to reload the unloaded subsystem later and it is therefore unavailable for the remainder of the session.
Recurrent saturations of the system address space even though the system is configured correctly may indicate a system error. Please consult Customer Support.