Replacing an active RECON data set

There might be circumstances for which you need to replace an active RECON data set, for instance on a test system.

Recommendations: Stop all IMS subsystems and batch jobs accessing the RECON data sets.

For both online and batch, use dynamic allocation for RECON data sets, and run with at least three RECON data sets.

Procedure

  1. Define a spare data set with new space or allocate a spare data set at a new location.
  2. Issue the CHANGE.RECON REPLACE (RECONn) command.
  3. Define a new spare data set.
  4. Continue normal processing.