Ron, Your example is an 'exception', it was decided to do it for that DS to gain the benefit. That's OK by me.
It wasn't decided to COMP all VSAM/PS(FB/VB) DS that are over 5 CYL, which is the case I question. I've seen thousands of GDS, under 5 Cyl, being COMP'd, & they quickly go to ML2, so they are not read many times. This doesn't make sense to me, if one is short on CPU. I should have said: I don't see why anyone would compress ALL DS under 500 Cyl these days, just to save space, when one is short on CPU. > there is more to compression than just the size of the dataset. Amen. Rgds, Rez ---------------------------------------------------------------------- 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
