Siemens U3585-J-Z125-8-76 1, SM2 monitoring system manual Monitored data on SVC calls, Svc

SM2 monitoring programs SVC

In the case of processors with DCS in which there are several guest systems running under VM2000, the SERVICETIME monitoring program can only be started by one of these guest systems. Any attempts to start this function from a second guest system will be accepted without an error message, but no DCS-specific monitored data will be returned. In general, when using SHARED-DEVICES under VM2000, DCS-specific data will not be delivered by any of the guest systems (see the "VM2000" manual [9]).

Note for SR2000

Information on device disconnect times cannot be supplied for devices connected to a bus.

SVC

Monitored data on SVC calls

This monitoring program records all the SVC calls in the system.

The monitored data returned will be of interest only to performance specialists, since detailed knowledge of the internal workings of the system is required to interpret it.

SYSSTAT

Global system and category-specific monitored data

This SM2 function provides information on important global system or category-specific variables. The most important aspect of these variables is that they can be obtained using event-driven methods. These monitored values make it possible to assign values which are otherwise global by default (CPU, I/O) to individual categories, i.e. the category-related share of the load can be determined. For precise determination of category dilation, the SET-SYSSTAT-PARAMETER statement is required to include all devices in the monitoring process. The queue statistics are automatically activated when the monitoring program is started. The monitored data is written to the SM2 output file; some of the values are displayed on screen in the CATEGORY report.

U3585-J-Z125-8-76 51