>Most people are running on VIRTUAL disks anyway. z/os may "see" a 2105 or a >2107 but in most cases its tiny little brown round and spinning in RAID 5 on >the SAN so it doesn't much matter any more.
We're not talking performance, here. We're talking space, volumes, & TIOT (Task I/O Table). >We used to place datasets on disks in accordance to their activity level and >distance from the VTOC. While interesting from a history perspective, this has nothing to do with the issue under discussion. Performance is something I've been doing since 1981 & 3330 disk, but space constraints are different. - Too busy driving to stop for gas! ---------------------------------------------------------------------- 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

