Unload Reload CA IDMS catalog areas

Document ID : KB000127203
Last Modified Date : 21/02/2019
Show Technical Document Details
Question:
I need to expand the page range of all 3 catalog areas, DDLCAT, DDLCATX and DDLCATLOD.
Is it possible to unload-reload all 3 areas in one job?
Answer:
This is not possible since different subschemas are needed for these areas.
IDMSCATL is the subschema that must be used to Unload-Reload the DDLCATLOD area.
IDMSCATZ is the subschema that must be used to Unload-Reload the DDLCAT and DDLCATX areas. These 2 area may be processed together.
Should Unload-Reload the  DDLCATLOD area first, since subschema IDMSCATL contains only the DDLCATLOD area.   
Subschema IDMSCATZ, used for unloading the DDLCAT and DDLCATX areas, also contains the DDLCATLOD area.  This will cause the DDLCATLOD area to be readied and may cause 
an 0970 on DDLCATLOD area, if using new DMCL and pointing to new DDLCATLOD file. 
The 0970 is an Open failure and will prevent the Reload from succeeding.