Siemens SM2 monitoring system manual SM2 monitored variables, Monitored variable Description

SM2 monitored variables SM2 monitoring program

2.9 SM2 monitored variables

The table below shows the main monitored variables of SM2.

A table showing the links between the monitored variables and monitoring programs, ONLINE reports, and SM2R1 report groups can be found in chapter “Variables reports” on page 361.

Monitored variable	Description
Cache
Access statistics and hit rates for	Number of read/write accesses to DAB cache areas per second
DAB caches	and the percentage frequency of read/write accesses to DAB
	subareas without disk access.
Access statistics for ISAM pools	Number of ISAM accesses per second to pages in the ISAM
	pool and directly to disk, as well as the number of ISAM
	accesses with a delay per second.
	Size of the ISAM pool, reserved pages and fixed pages in PAM
	pages.
Access statistics and hit rates for	Number of read/write accesses to PCA or DAB cache areas per
hiperfiles (PFA)	second, and their percentage share of the total number of read/
	write accesses.
	Number of failed attempts to use the cache per second.
Access statistics and hit rates for	Number of read/write accesses to SYMMETRIX controllers and
SYMMETRIX controllers	devices.
	Proportion of read/write accesses handled successfully by the
	cache.
Access statistics and hit rates for	Number of read/write accesses and their percentage share of
controllers with cache (PCA)	the total number of read/write accesses for PCA controllers,
	cache areas, and devices.
CPU
CPU utilization	Time during which the processor is in one of the following
	statuses: TU, TPR, SIH, IDLE or STOP.
	In SR2000 systems, /390 time will also be output.
Number of system calls	Number of SVC calls in TU/TPR per second, and the sum of all
	SVC calls per second.
Files
Catalog access statistics	Number of read/write accesses to catalog entries/JV entries of
	files per second, as well as average access times in milli-
	seconds.
Table 2: SM2 monitored variables

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