Have you looked at the amount of compression that you are getting when comparing the z14 to the z15? In our shop SMF data went from about 6:1 compression (z14) to 10:1. This is a massive improvement. I do not have the CPU stats, and I also really could not care. Dumps run at night when we have a massive amount of spare MSU available.
You wrote that you have 4000 volumes. Most of this is surely DB2 data (or another DBMS)? Don't you use image copies and let the applications determine when and where the copy should be made? Depending on the nature of the data, legal requirements may force you to manage the backups different data differently. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
