Siemens U3585-J-Z125-8-76 1, SM2 monitoring system manual PFA reports

SM2 reports PFA reports

PFA reports

The PFA monitoring program enables SM2 to record monitored data on the use of various caches. These caches can be served by the products DAB and PCA.

DAB supports the caches in main memory, expanded storage and global storage. PCA supports the caches in the 3419, 3421, 3860 and SYMMETRIX controllers.

If PFA serves the cache via DAB and the DAB monitoring program is activated, DAB monitored data will be supplied in addition to PFA monitored data and output in the DAB reports. If PFA serves the caches of 3419/21 controllers via PCA and the PCA monitoring program is activated, PCA monitored data will be supplied and output in the PCA reports. When serving the caches of SYMMETRIX controllers, you need only activate the PFA monitoring program in order to output monitored data in the SYMMETRIX reports.

Unlike other SM2 monitoring programs, the information recorded by PCA is not host- specific, rather refers globally to a controller. This must be taken into account particularly when interpreting the data.

The PFA CACHE report provides a non-product-specific overview of the use of all caches. The PFA CONTROLLER report supplies controller-specific monitored data on a PFA cache served by PCA and whose devices can be assigned to different controllers.

The figure below illustrates the hierarchy of reports and the statement used to request them:

PFA CACHE report

SELECT-PFA-CACHE

PFA CONTROLLER report

U3585-J-Z125-8-76 285