Every time I've reduced the machine's CPUs (either CBU or OOCoD), I've always varied CPUs offline from z/OS such that no running system has more CPUs online than what I'm reducing to. I'm not sure that it's an absolute requirement, but it seems like an easy precaution to take.
Never have had a problem with adjusting things that way. Of course IBM making the change themselves may be somewhat different, but I wouldn't expect any problems. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
