Mainframe Enablers TimeFinder SnapVX and zDP 8.5 Product Guide

zDP can optionally generate an SMF record for each cycle, and at VDG startup and shutdown.

To set up zDP SMF recording, use the following controls:

• The DEFINE VDG,SMF command of the zDP Definition Utility
• The SMF rec number and TRACKS options in the zDP Specify Versioned Data Group Parameters ISPF panel; the F = SMF command in the zDP VDG Monitor panel
• The ZDP,MODIFY,SMF command of Symmetrix Control Facility (SCF) described in the ResourcePak Base for z/OS Product Guide.
  NOTE:The SCF ZDP,MODIFY,SMF command requires the VDG to be active. The SMF parameters can be changed for an inactive VDG with the zDP Definition Utility.

When SMF recording is enabled, message EIP0250I is issued during initialization of the VDG. This message is also issued at the start of a cycle on behalf of any SMF parameter change using a ZDP,MODIFY,SMF command. If SMF recording is dynamically disabled, message EIP0251I is issued at the start of the next cycle.

To view SMF recording status with the zDP Definition Utility, issue the QUERY VDG,STATUS command and look for the string starting with 'SMF'.