MVCDK/MVCSK/MVCK are "slow". MVC is fast. MVCL "can" be fast.
That basically means that if your source is not fetch protected, you might be best off simply switching to the target key and doing MVC then switching back to your key. If your source is fetch protected then you must use one of the key'd moves if interested in preserving system integrity. Peter Relson z/OS Core Technology Design ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html

