I doubt it will make a measurable difference in performance, but if you're having jobs fail due to not being able to find a large enough contiguous area you will still need to defrag.
Jon <snip> So if there is a certain amount of intelligent read-ahead into cache, would defragging actually accomplish anything more than correcting VTOC entries? </snip> ---------------------------------------------------------------------- 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

