
Chapter 3. CICS data 115
attain the highest availability and avoid any situations where a failure of one
processor can lead to the failure of the coupling facility as a whole.
For a more detailed explanation about how the coupling facility can be used in
your business environment, see:
Coupling Facility Performance: A Real World Perspective, REDP-4014-00
Figure 3-4 illustrates the relationship between a coupling facility, VSAM,
SMSVSAM, and CICS.
Figure 3-4 Intertwined CICS regions, VSAM/SMSVASM, and the coupling facility
3.4 CICS and DB2
One important aspect of CICS TS is its ability to communicate and exchange
information with DB2. This is an ...