Step 26. Prepare IOA

1. Change data set parameters

   To increase or decrease the size of data sets, change the current release IOA data set parameters. Changing data set parameters affects the allocation and formatting of IOA data sets.

   You can change the values of most parameters and customize all formatting jobs in the "Customize IOA Dataset Parameters" major step, under Product Customization for IOA, in ICE Customization. This step lets you

   • redo the space calculation for the IOA Log file and the Global Variables files
   • specify new parameter values for the Conditions and the Manual Conditions files
   • save the parameters in IOAPARM and DEFPARM members—mandatory if values were changed
   • rebuild formatting jobs reflecting the new values

   Note: If you migrate the conditions from the old repository to the new one, you must specify new parameter values for the Condition and Manual Condition files that are at least the size of the current production repositories. If not, migration of the data from the old repositories to the new repositories will fail.

   For each data set whose size you changed, delete or rename the older version of the data set outside of ICE.

2. Modify new installation parameters

   Verify that the values of the following IOA parameters in the new installation are suitable for production.

   Table 14 IOA installation parameters

   Parameter	Additional considerations
   QNAME	Using the same QNAME as the existing production environment may eliminate some changes to the security definitions.
   SSNAME	You can use the same subsystem for different releases but you may need to perform IOASDISC in order to disconnect and then initialize the subsystem in the correct format.

3. Save parameters

   Save the parameters by performing the "Save Parameters into Installation Libs." minor step.

4. Reformat repository data sets

   If you modified the QNAME, reformat all repository data sets.