V4R4 upgrade to V6R1

40 pts.
Tags:
AS/400
AS400 V4R4 to V6R1
RPG Code
V4R4
V6R1
Our current V4R4 box contains our data files and in-house written rpg, cl, service pgms, binded directories, etc. We have all our source code. We have no 3rd party software, all is in-house code. We are about to buy a used V6R1 box. I know there is some sort of costly 3 step migration for this. But I need to ask. Can I do the following... Can I restore my V4R4 data files from a backup tape to the V6R1 box? Will the V6R1 box accept the file? If so, can I then restore by source code(rpg, cl, service pgm bind dirs, etc) & then recompile them to create the objects on the new box? Keep in mind, all our code is in-house rpg, cl, etc. I am trying to avoid the costs of the migration.

Thanks Stephen



Software/Hardware used:
I-520
ASKED: August 8, 2011  8:43 AM
UPDATED: March 31, 2012  7:12 PM

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  • TomLiotta
    The "costly" migration steps might not take as long nor be as difficult as the steps that you propose. Recompiling, for example, will take more system resources than simply allowing the automatic conversion to run. (That assumes that your programs do not have the pre-V5R1 observability removed, in which case recompilation is needed.) However, if you only have maybe a couple dozen user profiles, you might do well just to recreate profiles, restore libraries and start testing. Hard to tell without knowing more about your existing environment. It sounds like you will have both systems available for a reasonable length of time. You could start by becoming familiar with items that are referenced in the i 6.1 Scenarios: Data migration. The most relevant sub-topic is "Migrating from V5R3 on a model 620 to V6R1 on a model 520 system". That isn't an exact match, but it describes a scenario where the source system (V4R4 for you) cannot be upgraded to i 6.1 before any migration. By familiarizing yourself with those steps, you'll determine which pieces are irrelevant (e.g., network storage devices or spooled files), which ones may cause trouble (e.g., incompatible save/restore media) and any other details. (Note that you would probably begin the 'Restoring previous release user data to a new system' at step 31 rather than step 25.) Can you give high-level description of your current setup? Number of user libraries? Number of (non-IBM) user profiles? Any details that seem relevant? Will your i 6.1 system have both OPM and ILE compilers? Was there any significant programming for IFS access? Tom
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  • Svocal2009
    Tom Thanks for the input. To be more specific, we have a small shop> About 50 users(non-ibm user profiles). 5 user data libraries(DASD is at 300G). We dont use IFS or Webserver on our V4R4 box. Again, all our code is inhouse rpg,cl, procedures, binded directories. The new box we are getting comes preloaded with V6R1 WDS Query/SQL etc. After reading the migration documentation it sounds like I will be better off just having an IBM consultant do the 3 step migration. Hopefully it wont be to costly. Stephen
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  • TomLiotta
    The new box we are getting comes preloaded with WDS The WDS product has at least 15 different options. Do you know which ones you will have? Tom
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