Optimizing Storage Management › CICS Storage Use › Temporary Storage › SCB (Session Control Block)

SCB (Session Control Block)

This piece of storage keeps track of what is occurring in an SCF-based session. This data consists of a single temporary storage record allocated during signon to an SCF-based session. Some of the information contained in this data follows:

• Products active, IDEAL, DDOL, IPCV, …
• Current panels:
  • Command line and message line is a panel.
  • User's panel is a panel.
• User's SCF session options:
  • All SET command settings.
• SCF CVT (Communication Vector Table):
  • A directory of other control blocks.
• PMS control blocks that control presentation area parameters such as:
  • How many lines are in each region
  • How wide is the screen
  • Where is the current scroll position
• Can contain RCB if a CA Ideal run is active, if room permits; otherwise, becomes its own control block (described in the next section).