Thank you Brian What about the size of catalog volume. I believe another mod 27 ?
On Tue, 22 Jul 2025, 09:59 Brian Westerman, < [email protected]> wrote: > For z/OS 3.1 Adabas sites I support on Mod 27's, I tend to have 3 volumes > to make each system, a RES, DLB and USS volume. The USS volume contains > the base Unix datasets (root, etc.), and tends to be 60% used, the RES > volume tends to be about 50% used and the DLB volume tends to run close to > 90% used. > > I have several dataset over-allocated because it makes service a lot > easier, so you could probably get by with much less. > > I use mod 54's for the sites that support them, and even though I "could" > put the USS stuff back on the RES volume there, I don't. If you don't > over-allocate things (like me), then you will probably have your DLB volume > closer to under 80% full. > > The way I do my maint is to clone these three volumes, changing hte names > of the USS datasets slightly, create a new SMP/e zone for them and apply > the maintenance, then I can simply IPL with the new volumes and keep the > old volumes for a fall-back. > > So, short story is that you can do it with mod-27's and not have to worry > about running out of space. > > Brian > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
