AS/400 Server Migration

30 pts.
Tags:
AS/400
AS/400 migration
IBM i 7.1
I have a scenario where i want to migrate from AS/400 Model 810 running V5R3 to a new Power 7 machine with V7R1. I went through IBM documentation and deciding on approach to be followed.
  1. First approach is to install IBM i 7.1 on new system and perform data migration from existing V5R3 system using data migration steps. I'll run ANZOBJCVN tool prior to migration.
  2. Second approach which IBM highly recommends is to upgrade source system from V5R3 to V5R4 or V6R1 and then perform data migration to new system with V7R1.
  3. In third approach i can migrate source system data with V5R3 to new system with V6R1 and then upgrade IBM i OS to V7R1 on the target system.
I need suggestion which option would be best among these and what other precaution i need to take for this process. I have to migrate 4 LPARS on current 810 model to new system. I am assuming this activity will take around 2-3 months including planning, preparation, implementation, testing and hand over. Please suggest.
 Thanks


Software/Hardware used:
AS/400 Model 810. IBM Power System 7

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  • CharlieBrowne
    It's hard to not go with the IBM recommendation, but you do have an option. If you do your first suggestion, it is the least amount of work. The nice thing is if if does not work , you can go on to one of the other options with causing any damage to production.
    I would strongly suggest that if #1 does not work, you do #2 going to V6R1. With 4 LPARs, you can do one at a time with the LPAR with the lease volatility first.
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  • ibmiguy
    Hey Charlie. Thanks for you suggestion. My thought is also same to go with option # 1 and in case it doesn't work i have nothing to lose and i can go ahead with option 2. 
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  • CharlieBrowne
    Let us know how it turns out.
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  • RickAguiar
    recently saw a solution in Fresche Legacy that is a tool to define the changes required from V5R3 to i6 or i7 and cuts the work down considerably as it tells you what needs to be changed. Your approach is sound and doing what is termed a "side by side" migration allows you to build the new host and OS and move just user and application data and test that as long as required before you cut over the users. The issue is there were format changes from V5 to i6 and those are the areas that hang most people up depending on how much you have modified your applications. from i6 to i7 is clean and simple as there were no major format changes. Have Fun!
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