---------------------------- Top of message ---------------------------- >>--> 02-07-03 15:11 S.SHEPPARD (SHS) Future of mainframe TSM
We run 2 older 9672s (R52 and R14), with a TSM 4.2.3.2 system on each backing up 140-160GB a night from 200+ clients. This is with an RVA T82 and 3590B drives in a 3494. We are somewhat constrained by the engine speed of the R52 (18mips) and the RVA disk, but still manage this load without too much grief, all while running a full-time traditional mainframe load. Due to end of support considerations for OS/390 2.10 and the high maintenance cost of the RVA, we will upgrade to a z/800 and ESS in the next 6 months, with a tape upgrade sometime after that. I expect that this will take care of our load for the foreseeable future with some (probably significant) performance improvements. I think the newer CPUs, ESS and FICON have allowed the mainframe to pretty much keep up with the UNIX boxes in performance. One big plus as far as I'm concerned is that S/390 tape management is light years ahead of the other platforms. With a properly configured RMM system, you don't need to worry about the ins and outs of moving your copy pool tapes back and forth to offsite storage and can easily do without DRM. Plus, the migration to another platform is not exactly free. The downside is the lack of LAN-free, server-free, and NAS backup capability and the potential that having to upgrade an underpowered mainframe just because of TSM could get you into some expensive third- party software charges that you might not have expected. Bottom-line, we're sticking with ours until we are absolutely forced off. We're hoping by that time to see a z-series Linux server. Sam Sheppard San Diego Data Processing Corp. (858)-581-9668 -----------------------------------------------------------------------` ---------------------------- Top of message ---------------------------- >>--> 02-07-03 13:38 ..NETMAIL () Future of mainframe TSM Date: Fri, 7 Feb 2003 15:45:12 -0500 From: "Thomas Denier" <[EMAIL PROTECTED]> Subject: Future of mainframe TSM To: [EMAIL PROTECTED] _________________________________Top_of_Message_________________________________ We run a 4.2.3.2 TSM server under OS/390. We have about 110 active client systems, sending about 300,000 files and about 70 gigabytes to the server each night. Our best estimate is that this workload will double in the next two years. Is it reasonable to stay with an OS/390 or zOS server in the face of the projected growth? If so, how do we prove that the mainframe is up to the task? Most IT managers around here want to believe that the mainframe is the wrong choice for TSM or anything else. -----------------------------------------------------------------------`
