Tom, ====================== What I have been told is that z/OS no longer uses the alternate tracks, so the reformat removes them from the VTOC.
Frankly, I haven't looked into this deep enough to know how you would ever get a "bad" track since there is so little use of real 3390 disk volumes anymore to cause z/OS to try and use an alternate track in the VTOC. ====================== I can't argue the point. However, EMC requires "traditional" formatting, My recollection is that it has to do with certain IBM DASD models that DIDN'T have alternate tracks. Michael ---------------------------------------------------------------------- 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

