System Description › SCDS File

SCDS File

CA SMF Director stores the SMF data inventory as well as its processing options on a Direct Access file called the SMF Control Data Set (SCDS). When the SMFD program is used to dump and clear the SMF SYSx.MANx data sets or archive the SMF logstreams, an index entry is created within the SCDS by date, cross referencing the location of the SMF data to the newly created history file. This product also stores an optional pool of tape volume serials on the SCDS that are used to store the SMF data history files. The size of the SCDS primarily depends upon how often SMF dumps occur and how long the inventory of SMF data is to be kept. For further details on how to calculate the size of the SCDS, see the Installation Guide or Chapter 4 of this guide.

CA SMF Director also provides initialization, backup, restore, and rebuilding functions of the SCDS. The LISTC and LISTH control statements can be used to report on the contents of the SCDS.

If the SCDS is to be shared by two or more LPARs, all LPARs sharing the SCDS must either belong to the same Global Resource Serialization (GRS) ring or be connected to each other via CA MIM. If CA MIM is to be used, you must define a QNAME of CAIMSMF for CA SMF Director. For more information on QNAME definitions, see the CA MII Data Sharing for z/OS Systems Programmer Guide.

Note: CA SMF Director includes an ISPF-based online interface named SMFDOL, which lets you examine information in the SCDS file. See the Installation Guide for information on setting up SMFDOL and the User Guide for information on using SMFDOL.