>Personally I think your single volume with many catalogs idea has merit.
I don't. All the hardware in the world is NOT going to protect you from a logical (data failure). And, I'm not talking about just the catalogue. There's the VTOC, the VTOCIX, the VVDS, etc. Performance is not the only criteria. - Too busy driving to stop for gas! ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html