What is the difference between a WARM and COLD start?
During a warm start, configuration information will be retrieved from the persistent data store. Configuration data from the previous invocation will be restored.
If the persistent data store does not contain the data requested, the definitions will be retrieved from parmlib members.
During a cold start, configuration information will be retrieved from the PARMLIB member. Configuation data from the previous invocation will NOT be restored.
How is the start mode specified?
The start mode can be specified for the SYSVIEW Main Services address space and associated tasks. The User Interface address space does not support a start mode.
The start mode for the Main Services address space and each associated task can be different.
The default start mode for the address space and all tasks is WARMSTART.
If a COLDSTART is explicitly specified for the Main Services address space, a COLDSTART will be performed for all associated tasks even if the task has requested a WARMSTART.
Main Services Address Space
The start mode for the Main Services address space can be specified using three different methods.
//SYSVIEW PROC MEM=SYSVIEW,START=WARM . . //SYSVIEW EXEC PGM=GSVXMAIN,REGION=0M,TIME=1440, // PARM=&MEM,&START .
Additional information is available at the web site:
Release: FAQSO.00200-14.1-SYSVIEW-Performance Management