Planet Mainframe 10 Year

IBM Technical Bulletin, anyone?

Hopefully all our readers are familiar with the beloved IBM Redbooks.  But our younger readers might not be familiar with Redbooks’ older cousins – Orange books, Yellow books, Blue books, and Green books.  These books (called IBM Technical Bulletins) were...

CICS TS 5.3 Red Alert

IBM announced a Red Alert for CICS TS 5.3 on June 19, 2017 (the first one in nearly 7 months).  This Red Alert is the result of a bug whereby two CICS transactions can be given the same Unit of Work ID (UOWID). The problem arises when the duplicate UOWIDs are passed...