Hi Wayne - and others following this thread with interest.... Firstly, how big is your current environment on OS/390 as far as TSM is concerned. I really do not see OS/390 scaling like AIX when it comes to TSM... I agree that most of the people running OS/390 have all the scheduling/reporting/tape handling sorted out and it works very well. OK - here comes my personal views (Based on 7+ years of running ADSM/TSM on Sun/Aix/NT/2000 and OS/390: General Performance: If you give OS/390 unlimited resources - so, in other words - no memory/cpu contention - it would perform OK. AIX on the other hand will scream if it was running on a S80 for instance. I/O performance: Escon on OS/390 limited to +- 15 Mb/sec - normally you share that with the rest of the LPAR - batch and whatever else you are running. On AIX you have FCP - a lot cheaper and faster than escon implementations on OS/390. Like mentioned already by other members - OS/390 you are limited in terms of robotics you can implement - basically a STK silo or IBM 3494. On AIX you have a very wide range of supported configs. Reporting: You can do all your reporting still from OS/390, even if you are running a TSM server on NT/AIX/Sun. We have all our reporting/problem logging for our TSM environment running from OS/390 - although the TSM servers are a mix of OS/390 and many NT TSM servers. Tape mgmt. your RMM, TLMS etc. are in anycase told that it must not manage TSM data - TSM has that built in. On AIX you just let TSM handle it. At the end of the day the only real benefit I can see on OS/390 and tape handling is if you have electronic vaulting set up - so your robotics and tape drives for your off-site storage pools are located physically off-site but genn'ed as local drives.
With scripts and maybe DRM in place it should be just as easy to manage your tapes on AIX as on OS/390. Hope this helps a bit. Regards Christo TSM on S/390 works great here. We have good automation tools for message handling and staff to note messages that haven't been automated. We schedule lots of batch admin clients with the S/390 job scheduler that generate reports that are distributed thru the report distribution software. No performance problems here, except we do have to compete for tape drives... Thank you. ______________________________________________ "The information contained in this communication is confidential and may be legally privileged. It is intended solely for the use of the individual or entity to whom it is addressed and others authorised to receive it. If you are not the intended recipient you are hereby notified that any disclosure, copying, distribution or taking action in reliance of the contents of this information is strictly prohibited and may be unlawful. Absa is neither liable for the proper, complete transmission of the information contained in this communication, any delay in its receipt or that the mail is virus-free."
