IDMS

1. Increase the page range in the Area definition for CATSYS.DDLCATLOD to the desired size.
   
   
2. Generate, punch and link the DMCL that contains the new page range for area CATSYS.DDLCATLOD.
   
   
3. Allocate the new larger file for the area.
   
   
4. FORMAT the new file using the updated DMCL.
   
   
5. Rename files such that the new larger file will be accessed by the CV (if not using dynamic file allocation you must be sure the new file is defined by a DD in the CV startup JCL)
   
   
6. Bring CV up with the updated DMCL.

I did this

NO 1. ALTER PHYSICAL AREA CATSYS.DDLCATLOD                       
 MAXIMUM SPACE 100 PAGES   was set at 50
 ; 

NO 2. tried to generate the DMCL but same error.

do I need to do a DMCL new copy after altering the no of pages?

Mike,

  You don't need to keep opening new community posts.

 You were originally trying to generate a DMCL for your project to increase the size of a user database area and got the message that CATSYS.DDLCATLOD was full. 

  If your CATSYS.DDLCATLOD area contains multiple DMCL and DBTABLE LOAD MODULES, you can temporarily get around this problem by deleting DMCL LOAD MODULE  and DBTABLE LOAD MODULE for any that exist and then run CLOD SYSTEM at ENTER NEXT TASK code.    That should allow you to Generate your new DMCL so the Load Module can be punched/linked and used for your area expansion. 

   Or if you know that only DMCL and DBTABLE load mods reside in CATSYS.DDLCATLOD you could use the existing DMCL to FORMAT AREA CATSYS.DDLCATLOD.  certainly the empty area will allow the Generate of your new DMCL.

  Any existing DMCLs or DBTABLES can be regenerated from the source definitions when needed.

  If later you want to increase the size of the CATSYS.DDLCATLOD area you can follow the directions in  KB000026613.

Thanks Brian for the information.