PTFs UA66217, UA66505, UA66218 and UA66506 have been marked PE. These PTFs can cause storage overlays and system outages.
APAR OA40497 has been created to fix this problem. This APAR has been marked HIPER and is the fix for the PE.
Please note - If you already have any of these ptfs applied, APAR OA40497 has zaps that can be applied to resolve the problems until the fixing PTF can be applied.
Here's a link to the note: