Hi, I know a few of the list members has gone through a conversion from OS/390 to AIX. What I need is something in terms of sizing for the AIX system to handle the load the OS/390 system was handling. The S390 system currently has a db of 14.5Gig and backs up approximately 100-200Gig a night. The current problem we have is very high Cpu utilization and the workload on the S390 server being 'capped' - as not to interfere too much with the other applications running there. We initially want to just export our current database to the AIX machine and run some queries etc. on the AIX box with the S390 db. We can then do the same query on the S390 box and get an idea of how the two compare in terms of the efficiency of the db - my personal feeling is the db structure on the S390 platform is not giving all it should be able to. I know we had a discussion sometime last year to the pro's and con's of moving the Adsm/Tsm db to another db platform like oracle or db2 so I'm not going to request anything like that. All I want to know is, the people that has done something similar - what was your experiences - performance wise. It does not have to be AIX - even Sun.... I know this environment is small compared to others like Dwight especially in terms of the Gigs transferred per night - but we had network limitations to the S/390 host so we could not really afford to grow the clients more - we went for multiple NT servers to handle the load in specific buildings across the enterprise. Thanks Christo Heuer
