Expanding the PROFILE pool data set
The PROFILE variables are stored in the PROFILE pool data set. When this data set becomes full, you must allocate and initialize a new, larger data set.
You can use the XTLOAD utility to copy all the PROFILE variables from the old data set into the new data set. You can identify a full PROFILE pool data set if requests to the data set from IMFEXEC VPUT or IMFEXEC VPUTL fail with return codes of 20 or 8 respectively.
Do not use IEBGENER to copy the smaller data set into the new, larger data set. You must use the XTLOAD utility for MainView AutoOPERATOR to recognize the additional space.